SQL: Finding frequency of words used by a user - sql

I am having a table with columns ID, CHAT_ID, USERNAME, MONTH, DAY, YEAR, STATUS.
[my_table][1][1]: https://i.stack.imgur.com/5XjM2.png
The status contains tweet by a user. Now I'm trying to find the frequency of words on status column grouping by username i.e., I need to create a new table which shows how many times a user uses a particular word. The table needs to have columns username, word and frequency.
I used the following query to find frequency of words on status column
select sep.col AS WORD, count(*) as Frequency from
(
select * from
(
select value = Lower
(RTrim
(LTrim
(convert(VARCHAR(MAX), STATUS))
)) FROM My_table
) easyValues
Where value <> ''
) actualValues
Cross Apply dbo.SeparateValues(value, ' ') sep
Group By USERNAME,sep.col
Order By Count(*) Desc
The dbo. SeparateValues() is a table valued function
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER Function [dbo].[SeparateValues]
(
#data VARCHAR(MAX),
#delimiter VARCHAR(10)
)
RETURNS
#tbldata TABLE(col VARCHAR(MAX))
As
--Declare #data VARCHAR(MAX) ,#delimiter VARCHAR(10)
--Declare #tbldata TABLE(col VARCHAR(10))
--Set #data = 'hello,how,are,you?,234234'
--Set #delimiter = ','
--DECLARE #tbl TABLE(col VARCHAR(10))
Begin
DECLARE #pos INT
DECLARE #prevpos INT
SET #pos = 1
SET #prevpos = 0
WHILE #pos > 0
BEGIN
SET #pos = CHARINDEX(#delimiter, #data, #prevpos+1)
if #pos > 0
INSERT INTO #tbldata(col) VALUES(LTRIM(RTRIM(SUBSTRING(#data, #prevpos+1, #pos-#prevpos-1))))
else
INSERT INTO #tbldata(col) VALUES(LTRIM(RTRIM(SUBSTRING(#data, #prevpos+1, len(#data)-#prevpos))))
SET #prevpos = #pos
End
RETURN
END
I got it from the internet.
But I'm unable to do the part of finding the number of times the word was used by a user. I'm new to SQL, Can anyone please point me in a right direction to do so? Any help would be really appreciated. thank you!

Related

Query stuff result left join on multiple ids [duplicate]

Duplicate of
Dynamic SQL Comma Delimited Value Query
Parameterized Queries with Like and In
I have a SQL Server Stored Procedure where I would like to pass a varchar full of comma delimited values to an IN function. For example:
DECLARE #Ids varchar(50);
SET #Ids = '1,2,3,5,4,6,7,98,234';
SELECT *
FROM sometable
WHERE tableid IN (#Ids);
This does not work of course. I get the error:
Conversion failed when converting the varchar value '1,2,3,5,4,6,7,98,234' to data type int.
How can I accomplish this (or something relatively similar) without resorting to building dynamic SQL?
Of course if you're lazy like me, you could just do this:
Declare #Ids varchar(50) Set #Ids = ',1,2,3,5,4,6,7,98,234,'
Select * from sometable
where Charindex(','+cast(tableid as varchar(8000))+',', #Ids) > 0
Don't use a function that loops to split a string!, my function below will split a string very fast, with no looping!
Before you use my function, you need to set up a "helper" table, you only need to do this one time per database:
CREATE TABLE Numbers
(Number int NOT NULL,
CONSTRAINT PK_Numbers PRIMARY KEY CLUSTERED (Number ASC)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
DECLARE #x int
SET #x=0
WHILE #x<8000
BEGIN
SET #x=#x+1
INSERT INTO Numbers VALUES (#x)
END
use this function to split your string, which does not loop and is very fast:
CREATE FUNCTION [dbo].[FN_ListToTable]
(
#SplitOn char(1) --REQUIRED, the character to split the #List string on
,#List varchar(8000) --REQUIRED, the list to split apart
)
RETURNS
#ParsedList table
(
ListValue varchar(500)
)
AS
BEGIN
/**
Takes the given #List string and splits it apart based on the given #SplitOn character.
A table is returned, one row per split item, with a column name "ListValue".
This function workes for fixed or variable lenght items.
Empty and null items will not be included in the results set.
Returns a table, one row per item in the list, with a column name "ListValue"
EXAMPLE:
----------
SELECT * FROM dbo.FN_ListToTable(',','1,12,123,1234,54321,6,A,*,|||,,,,B')
returns:
ListValue
-----------
1
12
123
1234
54321
6
A
*
|||
B
(10 row(s) affected)
**/
----------------
--SINGLE QUERY-- --this will not return empty rows
----------------
INSERT INTO #ParsedList
(ListValue)
SELECT
ListValue
FROM (SELECT
LTRIM(RTRIM(SUBSTRING(List2, number+1, CHARINDEX(#SplitOn, List2, number+1)-number - 1))) AS ListValue
FROM (
SELECT #SplitOn + #List + #SplitOn AS List2
) AS dt
INNER JOIN Numbers n ON n.Number < LEN(dt.List2)
WHERE SUBSTRING(List2, number, 1) = #SplitOn
) dt2
WHERE ListValue IS NOT NULL AND ListValue!=''
RETURN
END --Function FN_ListToTable
you can use this function as a table in a join:
SELECT
Col1, COl2, Col3...
FROM YourTable
INNER JOIN FN_ListToTable(',',#YourString) s ON YourTable.ID = s.ListValue
Here is your example:
Select * from sometable where tableid in(SELECT ListValue FROM dbo.FN_ListToTable(',',#Ids) s)
No Table No Function No Loop
Building on the idea of parsing your list into a table our DBA suggested using XML.
Declare #Ids varchar(50)
Set #Ids = ‘1,2,3,5,4,6,7,98,234’
DECLARE #XML XML
SET #XML = CAST('<i>' + REPLACE(#Ids, ',', '</i><i>') + '</i>' AS XML)
SELECT *
FROM
SomeTable
INNER JOIN #XML.nodes('i') x(i)
ON SomeTable .Id = x.i.value('.', 'VARCHAR(MAX)')
These seems to have the same performance as #KM's answer but, I think, a lot simpler.
You can create a function that returns a table.
so your statement would be something like
select * from someable
join Splitfunction(#ids) as splits on sometable.id = splits.id
Here is a simular function.
CREATE FUNCTION [dbo].[FUNC_SplitOrderIDs]
(
#OrderList varchar(500)
)
RETURNS
#ParsedList table
(
OrderID int
)
AS
BEGIN
DECLARE #OrderID varchar(10), #Pos int
SET #OrderList = LTRIM(RTRIM(#OrderList))+ ','
SET #Pos = CHARINDEX(',', #OrderList, 1)
IF REPLACE(#OrderList, ',', '') <> ''
BEGIN
WHILE #Pos > 0
BEGIN
SET #OrderID = LTRIM(RTRIM(LEFT(#OrderList, #Pos - 1)))
IF #OrderID <> ''
BEGIN
INSERT INTO #ParsedList (OrderID)
VALUES (CAST(#OrderID AS int)) --Use Appropriate conversion
END
SET #OrderList = RIGHT(#OrderList, LEN(#OrderList) - #Pos)
SET #Pos = CHARINDEX(',', #OrderList, 1)
END
END
RETURN
END
It's a very common question. Canned answer, several nice techniques:
http://www.sommarskog.se/arrays-in-sql-2005.html
This works perfectly! The below answers are too complicated. Don't look at this as dynamic. Set up your store procedure as follows:
(#id as varchar(50))
as
Declare #query as nvarchar(max)
set #query ='
select * from table
where id in('+#id+')'
EXECUTE sp_executesql #query
I can suggest using WITH like this:
DECLARE #Delim char(1) = ',';
SET #Ids = #Ids + #Delim;
WITH CTE(i, ls, id) AS (
SELECT 1, CHARINDEX(#Delim, #Ids, 1), SUBSTRING(#Ids, 1, CHARINDEX(#Delim, #Ids, 1) - 1)
UNION ALL
SELECT i + 1, CHARINDEX(#Delim, #Ids, ls + 1), SUBSTRING(#Ids, ls + 1, CHARINDEX(#Delim, #Ids, ls + 1) - CHARINDEX(#Delim, #Ids, ls) - 1)
FROM CTE
WHERE CHARINDEX(#Delim, #Ids, ls + 1) > 1
)
SELECT t.*
FROM yourTable t
INNER JOIN
CTE c
ON t.id = c.id;
I think a very simple solution could be following:
DECLARE #Ids varchar(50);
SET #Ids = '1,2,3,5,4,6,7,98,234';
SELECT *
FROM sometable
WHERE ','+#Ids+',' LIKE '%,'+CONVERT(VARCHAR(50),tableid)+',%';
Without using dynamic SQL, you have to take the input variable and use a split function to put the data into a temp table and then join to that.
Thanks, for your function I Used IT........................
This is my EXAMPLE
**UPDATE [RD].[PurchaseOrderHeader]
SET [DispatchCycleNumber] ='10'
WHERE OrderNumber in(select * FROM XA.fn_SplitOrderIDs(#InvoiceNumberList))**
CREATE FUNCTION [XA].[fn_SplitOrderIDs]
(
#OrderList varchar(500)
)
RETURNS
#ParsedList table
(
OrderID int
)
AS
BEGIN
DECLARE #OrderID varchar(10), #Pos int
SET #OrderList = LTRIM(RTRIM(#OrderList))+ ','
SET #Pos = CHARINDEX(',', #OrderList, 1)
IF REPLACE(#OrderList, ',', '') <> ''
BEGIN
WHILE #Pos > 0
BEGIN
SET #OrderID = LTRIM(RTRIM(LEFT(#OrderList, #Pos - 1)))
IF #OrderID <> ''
BEGIN
INSERT INTO #ParsedList (OrderID)
VALUES (CAST(#OrderID AS int)) --Use Appropriate conversion
END
SET #OrderList = RIGHT(#OrderList, LEN(#OrderList) - #Pos)
SET #Pos = CHARINDEX(',', #OrderList, 1)
END
END
RETURN
END
If you use SQL Server 2008 or higher, use table valued parameters; for example:
CREATE PROCEDURE [dbo].[GetAccounts](#accountIds nvarchar)
AS
BEGIN
SELECT *
FROM accountsTable
WHERE accountId IN (select * from #accountIds)
END
CREATE TYPE intListTableType AS TABLE (n int NOT NULL)
DECLARE #tvp intListTableType
-- inserts each id to one row in the tvp table
INSERT #tvp(n) VALUES (16509),(16685),(46173),(42925),(46167),(5511)
EXEC GetAccounts #tvp
Its been a while but I have done this in the past using XML as a interim.
I can't take any credit for this, but I'm afraid I no longer know where I got this idea from:
-- declare the variables needed
DECLARE #xml as xml,#str as varchar(100),#delimiter as varchar(10)
-- The string you want to split
SET #str='A,B,C,D,E,Bert,Ernie,1,2,3,4,5'
-- What you want to split on. Can be a single character or a string
SET #delimiter =','
-- Convert it to an XML document
SET #xml = cast(('<X>'+replace(#str,#delimiter ,'</X><X>')+'</X>') as xml)
-- Select back from the XML
SELECT N.value('.', 'varchar(10)') as value FROM #xml.nodes('X') as T(N)
Create a table function like below which parse comma separated varchar and returns a table that can be inner joined with other tables.
CREATE FUNCTION [dbo].[fn_SplitList]
(
#inString varchar(MAX) = '',
#inDelimiter char(1) = ',' -- Keep the delimiter to 100 chars or less. Generally a delimiter will be 1-2 chars only.
)
RETURNS #tbl_Return table
(
Unit varchar(1000) COLLATE Latin1_General_BIN
)
AS
BEGIN
INSERT INTO #tbl_Return
SELECT DISTINCT
LTRIM(RTRIM(piece.value('./text()[1]', 'varchar(1000)'))) COLLATE DATABASE_DEFAULT AS Unit
FROM
(
--
-- Replace any delimiters in the string with the "X" tag.
--
SELECT
CAST(('<X>' + REPLACE(s0.prsString, s0.prsSplitDelimit, '</X><X>') + '</X>') AS xml).query('.') AS units
FROM
(
--
-- Convert the string and delimiter into XML.
--
SELECT
(SELECT #inString FOR XML PATH('')) AS prsString,
(SELECT #inDelimiter FOR XML PATH('')) AS prsSplitDelimit
) AS s0
) AS s1
CROSS APPLY units.nodes('X') x(piece)
RETURN
END
=================================================
Now consume above created table function in your code,creation of function is one time activity in your database that can be used across databases as well on same server.
DECLARE #Ids varchar(50);
SET #Ids = '1,2,3,5,4,6,7,98,234';
SELECT
*
FROM sometable AS st
INNER JOIN fn_SplitList(#ids, ',') AS sl
ON sl.unit = st.tableid
I've written a stored procedure to show how to do this before.
You basically have to process the string.
I tried to post the code here but the formatting got all screwy.
IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = object_id(N'[dbo].[uspSplitTextList]') AND OBJECTPROPERTY(id, N'IsProcedure') = 1)
DROP PROCEDURE [dbo].[uspSplitTextList]
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_NULLS ON
GO
/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
-- uspSplitTextList
--
-- Description:
-- splits a separated list of text items and returns the text items
--
-- Arguments:
-- #list_text - list of text items
-- #Delimiter - delimiter
--
-- Notes:
-- 02/22/2006 - WSR : use DATALENGTH instead of LEN throughout because LEN doesn't count trailing blanks
--
-- History:
-- 02/22/2006 - WSR : revised algorithm to account for items crossing 8000 character boundary
-- 09/18/2006 - WSR : added to this project
--
CREATE PROCEDURE uspSplitTextList
#list_text text,
#Delimiter varchar(3)
AS
SET NOCOUNT ON
DECLARE #InputLen integer -- input text length
DECLARE #TextPos integer -- current position within input text
DECLARE #Chunk varchar(8000) -- chunk within input text
DECLARE #ChunkPos integer -- current position within chunk
DECLARE #DelimPos integer -- position of delimiter
DECLARE #ChunkLen integer -- chunk length
DECLARE #DelimLen integer -- delimiter length
DECLARE #ItemBegPos integer -- item starting position in text
DECLARE #ItemOrder integer -- item order in list
DECLARE #DelimChar varchar(1) -- first character of delimiter (simple delimiter)
-- create table to hold list items
-- actually their positions because we may want to scrub this list eliminating bad entries before substring is applied
CREATE TABLE #list_items ( item_order integer, item_begpos integer, item_endpos integer )
-- process list
IF #list_text IS NOT NULL
BEGIN
-- initialize
SET #InputLen = DATALENGTH(#list_text)
SET #TextPos = 1
SET #DelimChar = SUBSTRING(#Delimiter, 1, 1)
SET #DelimLen = DATALENGTH(#Delimiter)
SET #ItemBegPos = 1
SET #ItemOrder = 1
SET #ChunkLen = 1
-- cycle through input processing chunks
WHILE #TextPos <= #InputLen AND #ChunkLen <> 0
BEGIN
-- get current chunk
SET #Chunk = SUBSTRING(#list_text, #TextPos, 8000)
-- setup initial variable values
SET #ChunkPos = 1
SET #ChunkLen = DATALENGTH(#Chunk)
SET #DelimPos = CHARINDEX(#DelimChar, #Chunk, #ChunkPos)
-- loop over the chunk, until the last delimiter
WHILE #ChunkPos <= #ChunkLen AND #DelimPos <> 0
BEGIN
-- see if this is a full delimiter
IF SUBSTRING(#list_text, (#TextPos + #DelimPos - 1), #DelimLen) = #Delimiter
BEGIN
-- insert position
INSERT INTO #list_items (item_order, item_begpos, item_endpos)
VALUES (#ItemOrder, #ItemBegPos, (#TextPos + #DelimPos - 1) - 1)
-- adjust positions
SET #ItemOrder = #ItemOrder + 1
SET #ItemBegPos = (#TextPos + #DelimPos - 1) + #DelimLen
SET #ChunkPos = #DelimPos + #DelimLen
END
ELSE
BEGIN
-- adjust positions
SET #ChunkPos = #DelimPos + 1
END
-- find next delimiter
SET #DelimPos = CHARINDEX(#DelimChar, #Chunk, #ChunkPos)
END
-- adjust positions
SET #TextPos = #TextPos + #ChunkLen
END
-- handle last item
IF #ItemBegPos <= #InputLen
BEGIN
-- insert position
INSERT INTO #list_items (item_order, item_begpos, item_endpos)
VALUES (#ItemOrder, #ItemBegPos, #InputLen)
END
-- delete the bad items
DELETE FROM #list_items
WHERE item_endpos < item_begpos
-- return list items
SELECT SUBSTRING(#list_text, item_begpos, (item_endpos - item_begpos + 1)) AS item_text, item_order, item_begpos, item_endpos
FROM #list_items
ORDER BY item_order
END
DROP TABLE #list_items
RETURN
/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
GO
SET QUOTED_IDENTIFIER OFF
GO
SET ANSI_NULLS ON
GO
I have same idea with user KM. but do not need extra table Number. Just this function only.
CREATE FUNCTION [dbo].[FN_ListToTable]
(
#SplitOn char(1) --REQUIRED, the character to split the #List string on
,#List varchar(8000) --REQUIRED, the list to split apart
)
RETURNS
#ParsedList table
(
ListValue varchar(500)
)
AS
BEGIN
DECLARE #number int = 0
DECLARE #childString varchar(502) = ''
DECLARE #lengthChildString int = 0
DECLARE #processString varchar(502) = #SplitOn + #List + #SplitOn
WHILE #number < LEN(#processString)
BEGIN
SET #number = #number + 1
SET #lengthChildString = CHARINDEX(#SplitOn, #processString, #number + 1) - #number - 1
IF #lengthChildString > 0
BEGIN
SET #childString = LTRIM(RTRIM(SUBSTRING(#processString, #number + 1, #lengthChildString)))
IF #childString IS NOT NULL AND #childString != ''
BEGIN
INSERT INTO #ParsedList(ListValue) VALUES (#childString)
SET #number = #number + #lengthChildString - 1
END
END
END
RETURN
END
And here is the test:
SELECT ListValue FROM dbo.FN_ListToTable('/','a/////bb/c')
Result:
ListValue
______________________
a
bb
c
-- select * from dbo.Split_ID('77,106')
ALTER FUNCTION dbo.Split_ID(#String varchar(8000))
returns #temptable TABLE (ID varchar(8000))
as
begin
declare #idx int
declare #slice varchar(8000)
declare #Delimiter char(1)
set #Delimiter =','
select #idx = 1
if len(#String)<1 or #String is null return
while #idx!= 0
begin
set #idx = charindex(#Delimiter,#String)
if #idx!=0
set #slice = left(#String,#idx - 1)
else
set #slice = #String
if(len(#slice)>0)
insert into #temptable(ID) values(#slice)
set #String = right(#String,len(#String) - #idx)
if len(#String) = 0 break
end
return
end
You could do it like this:
create or replace
PROCEDURE UDP_SETBOOKMARK
(
P_USERID IN VARCHAR2
, P_BOOKMARK IN VARCHAR2
) AS
BEGIN
UPDATE T_ER_Bewertung
SET LESEZEICHEN = P_BOOKMARK
WHERE STAMM_ID in( select regexp_substr(P_USERID,'[^,]+', 1, level) from dual
connect by regexp_substr(P_USERID, '[^,]+', 1, level) is not null )
and ER_ID = (select max(ER_ID) from T_ER_Bewertung_Kopie);
commit;
END UDP_SETBOOKMARK;
Then try it with
Begin
UDP_SETBOOKMARK ('1,2,3,4,5', 'Test');
End;
You can use this IN-Clause with regexp_substr in other situations too, just try it.
Error 493: The column 'i' that was returned from the nodes() method cannot be
used directly. It can only be used with one of the four XML data type
methods, exist(), nodes(), query(), and value(), or in IS NULL and IS NOT
NULL checks.
The above errorr was fixed in SQL Server 2014 by using following snippet
Declare #Ids varchar(50)
Set #Ids = '1,2,3,5,4,6,7,98,234'
DECLARE #XML XML
SET #XML = CAST('<i>' + REPLACE(#Ids, ',', '</i><i>') + '</i>' AS XML)
SELECT SomeTable.*
FROM
SomeTable
cross apply #XML.nodes('i') x(i)
where SomeTable .Id = x.i.value('.', 'VARCHAR(MAX)')
Try this:
SELECT ProductId, Name, Tags
FROM Product
WHERE '1,2,3,' LIKE '%' + CAST(ProductId AS VARCHAR(20)) + ',%';
As said on the last example of this link
Tons of answers here, but to add my two cents I think STRING_SPLIT is a very simple approach to this sort of problem:
DECLARE #Ids varchar(50);
SET #Ids = '1,2,3,5,4,6,7,98,234';
SELECT *
FROM sometable
WHERE tableid IN;
(SELECT value FROM STRING_SPLIT(#Ids, ','))
Best and simple approach.
DECLARE #AccumulateKeywordCopy NVARCHAR(2000),#IDDupCopy NVARCHAR(50);
SET #AccumulateKeywordCopy ='';
SET #IDDupCopy ='';
SET #IDDup = (SELECT CONVERT(VARCHAR(MAX), <columnName>) FROM <tableName> WHERE <clause>)
SET #AccumulateKeywordCopy = ','+#AccumulateKeyword+',';
SET #IDDupCopy = ','+#IDDup +',';
SET #IDDupCheck = CHARINDEX(#IDDupCopy,#AccumulateKeywordCopy)
CREATE TABLE t
(
id INT,
col1 VARCHAR(50)
)
INSERT INTO t
VALUES (1,
'param1')
INSERT INTO t
VALUES (2,
'param2')
INSERT INTO t
VALUES (3,
'param3')
INSERT INTO t
VALUES (4,
'param4')
INSERT INTO t
VALUES (5,
'param5')
DECLARE #params VARCHAR(100)
SET #params = ',param1,param2,param3,'
SELECT *
FROM t
WHERE Charindex(',' + Cast(col1 AS VARCHAR(8000)) + ',', #params) > 0
working fiddle find here Fiddle
I ran into the same issue, and I don't want to have any footprint on the source database - i.e. no stored procedures or functions. I went about it this way:
declare #IDs table (Value int)
insert into #IDs values(1)
insert into #IDs values(2)
insert into #IDs values(3)
insert into #IDs values(5)
insert into #IDs values(4)
insert into #IDs values(6)
insert into #IDs values(7)
insert into #IDs values(98)
insert into #IDs values(234)
SELECT *
FROM sometable
WHERE tableid IN (select Value from #IDs)
The answer by #RBarryYoung (above) worked for me.
But when you have spaces in between the comma separated string values, then it will omit IDs with spaces. So I removed the spaces.
Take a look at the code snippet below.
Declare #Ids varchar(50) Set #Ids = '1 , 2,3'
set #Ids=','+Replace(#Ids,' ', '')+',';
Select * from [tblEmployee]
where Charindex(','+cast(ID as varchar(8000))+',', #Ids) > 0
WHERE someId IN (SELECT convert(int, value) FROM string_split(#stringOfCommaDelimitedIds, ','))
The simplest way i found was to use FIND_IN_SET
FIND_IN_SET(column_name, values)
values=(1,2,3)
SELECT name WHERE FIND_IN_SET(id, values)
This came in handy for one of my requirements where I did not want to use CTE and also did not want to go with the inner join.
DECLARE #Ids varchar(50);
SET #Ids = '1,2,3,5,4,6,7,98,234';
SELECT
cn1,cn2,cn3
FROM tableName
WHERE columnName in (select Value from fn_SplitString(#ids, ','))
Function for split string :
CREATE FUNCTION [dbo].[fn_SplitString] ( #stringToSplit VARCHAR(MAX), #seperator Char )
RETURNS
#returnList TABLE ([Value] [nvarchar] (500))
AS
BEGIN
DECLARE #name NVARCHAR(255)
DECLARE #pos INT
WHILE CHARINDEX(#seperator, #stringToSplit) > 0
BEGIN
SELECT #pos = CHARINDEX(#seperator, #stringToSplit)
SELECT #name = SUBSTRING(#stringToSplit, 1, #pos-1)
INSERT INTO #returnList
SELECT #name
SELECT #stringToSplit = SUBSTRING(#stringToSplit, #pos+1, LEN(#stringToSplit)-#pos)
END
INSERT INTO #returnList
SELECT #stringToSplit
RETURN
END

splitting input string in sql and getting its value from another table

I have a table hobby and another table hobbyValue.
Hobby Table
===========
hobbies (It is a list of hobbies which user has inserted using checkbox. It gets stores hobby as Ids with a delimiter ^ for e.g hobbyId1^hobbyId2^hobbyId3^)
Hobby Value Table (it has two columns id, Value)
============
hobbyId1 | Football
hobbyId2 | baseball
hobbyId3 | chess
I am restricted to use this kind of table format because it is part of a big application. I am not sure how can I write a sql function where input string is hobbies from Hobby table and out put will be its values.
for e.g.
============================
string inputHobbies = hobbies from Hobby table , hobbyId1^hobbyId2^hobbyId3^
outputValues = input my_sql_function(inputHobbies)
outputValues should be football,baseball,chess
I dont even know how should I start for to get this.
Firstly, you will need some string split capability. If you are on Sql Server 2016+, there should be built in STRING_SPLIT function (https://learn.microsoft.com/en-us/sql/t-sql/functions/string-split-transact-sql).
If not, you can use one below, which I've got some time ago from another SO question.
CREATE FUNCTION fnc_splitstring ( #stringToSplit VARCHAR(MAX) )
RETURNS
#returnList TABLE ([Name] [nvarchar] (500))
AS
BEGIN
DECLARE #name NVARCHAR(255)
DECLARE #pos INT
WHILE CHARINDEX('^', #stringToSplit) > 0
BEGIN
SELECT #pos = CHARINDEX('^', #stringToSplit)
SELECT #name = SUBSTRING(#stringToSplit, 1, #pos-1)
INSERT INTO #returnList
SELECT #name
SELECT #stringToSplit = SUBSTRING(#stringToSplit, #pos+1, LEN(#stringToSplit)-#pos)
END
INSERT INTO #returnList
SELECT #stringToSplit
RETURN
END
Then you can split your hobby ids and join them onto the Hobby table, get the actual name and STUFF the results into a single result row again:
CREATE FUNCTION fnc_getHobbies (#listOfHobbyIds NVARCHAR(MAX))
RETURNS NVARCHAR(MAX)
AS
BEGIN
DECLARE #hobbies NVARCHAR(MAX)
SELECT #hobbies = STUFF(( SELECT ',' + hobby
FROM dbo.fnc_splitstring(#listOfHobbyIds) hb
INNER JOIN hobby h on h.id = hb.name
FOR XML PATH('')
), 1, 1, '')
RETURN #hobbies
END
End usage like below:
SELECT dbo.fnc_getHobbies(hobbyids)
FROM hobbies
Lastly, here is the SQL Fiddle for this: http://sqlfiddle.com/#!18/44cd9
CREATE FUNCTION [dbo].[SplitForDelimiter] -- a table-valued function
(
#delimiter VARCHAR(10),
#input VARCHAR(1000)
)
RETURNS #tempTable TABLE(
data VARCHAR(100)
)
BEGIN
DECLARE #tempstr VARCHAR(1000)
SET #tempstr = #input
WHILE(charindex(#delimiter,#tempstr,0) > 0)
BEGIN
DECLARE #t VARCHAR(100)
SET #t = Substring(#tempstr,0,(charindex(#delimiter,#tempstr,0)))
INSERT into #tempTable (data) VALUES (#t)
SET #tempstr = Substring(#tempstr,charindex(#delimiter,#tempstr,0)+1,Len(#tempstr))
if(charindex(#delimiter,#tempstr,0) <=0)
BEGIN
INSERT into #tempTable (data) VALUES (#tempstr)
END
END
Then
SELECT Value from HobbyValue HV
WHERE ID IN (select * from SplitForDelimiter('^','hobbyId1^hobbyId2^hobbyId3^'))

convert string into int SQL Server

This is the scenario:
My app will have the following:
A listbox (The checkbox property enabled) that will display a list of Something.
The user will select from the listbox (multiselect) by using the checkbox.
I will loop into All the checked items and store the ID's into an array. I will store the ID's into something like this separating the ID with a comma (1,2,3,4) and then I will use length -1 to delete the last comma.
How can I convert the string 1,2,3,4 into an integer type of data if my stored procedure is like this?
Select * from tblSomething Where ID in (1,2,3,4)
You can use the following SQL function.
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE FUNCTION [dbo].[CommaSeparatedToString]
(
#psCSString VARCHAR(8000)
)
RETURNS #otTemp TABLE(sID VARCHAR(20))
AS
BEGIN
DECLARE #sTemp VARCHAR(50)
WHILE LEN(#psCSString) > 0
BEGIN
SET #sTemp = LEFT(#psCSString, ISNULL(NULLIF(CHARINDEX(',', #psCSString) - 1, -1),
LEN(#psCSString)))
SET #psCSString = SUBSTRING(#psCSString,ISNULL(NULLIF(CHARINDEX(',', #psCSString), 0),
LEN(#psCSString)) + 1, LEN(#psCSString))
INSERT INTO #otTemp VALUES (#sTemp)
END
RETURN
END
And call in your stored procedure like
Select * from tblSomething
Where ID in (SELECT * FROM CommaSeparatedToString('1,2,3,4'))
You can use the
SELECT CAST(MyVarcharCol AS INT) FROM Table
SELECT CONVERT(INT, MyVarcharCol) FROM Table
refer this link
http://msdn.microsoft.com/en-us/library/ms187928.aspx
You need to create dynamic query for this
e.g you are getting list of values in #values paramter so prepare and run the dynamic query like this
DECLARE #query NVARCHAR(500)
DECLARE #values VARCHAR(200)
SET #values='1,2'
SET #query =N'Select * from tblSomething Where ID in ( ' + #values + ')'
SELECT #query
EXEC #Query
Use this function to split the value:
CREATE FUNCTION [dbo].[udfSplitCSV]
(
#String varchar (max),
#Delimiter varchar (10) = ','
)
RETURNS #ValueTable TABLE ([Row] int IDENTITY(1,1), [Value] varchar(max), [Length] int, [Duplicate] int NULL)
BEGIN
DECLARE #NextString varchar(max)
DECLARE #Pos int
DECLARE #NextPos int
IF #String IS NULL RETURN
--Initialize
SET #NextString = ''
SET #String = #String + #Delimiter
--Get position of first Comma
SET #Pos = charindex(#Delimiter,#String)
SET #NextPos = 1
--Loop while there is still a comma in the String
WHILE (#Pos <> 0)
BEGIN
SET #NextString = RTrim(LTrim(SubString(#String,1,#Pos - 1)))
INSERT INTO #ValueTable ([Value], [Length]) VALUES (#NextString, Len(#NextString))
SET #String = SubString(#String,#Pos+1,Len(#String))
SET #NextPos = #Pos
SET #Pos = CharIndex(#Delimiter,#String)
END
UPDATE #ValueTable
SET [Duplicate] = X.Duplicate
FROM #ValueTable VT
INNER JOIN (Select [Row], [Value], Row_Number() OVER (Partition By [Value] ORDER BY [Value], [Row]) as Duplicate FROM #ValueTable) X
ON X.[Row] = VT.[Row]
RETURN
END
-- Select * from dbo.udfSplitCSV('a , c b,c, a', ',')
When you are storing a bunch of IDs into the array, store with single quote.
so it will be ('1','2','3').
Then you no need to covert IDs into integer.

Comma-separated values (CSV) parameter filtering

Need help on how to improve my SQL script for better performance. dbo.Products table has a million rows. I'm hesitant to rewrite it using dynamic SQL. Thanks!
DECLARE
#Brand varchar(MAX) = 'Brand 1, Brand 2, Brand 3',
#ItemCategory varchar(MAX) = 'IC1, IC2, IC3, IC4, IC5'
--will return all records if params where set to #Brand = NULL, #ItemCategory = NULL
SELECT
[Brand],
SUM([Amount]) AS [Amount]
FROM dbo.Products (NOLOCK)
LEFT JOIN [dbo].[Split](#Brand, ',') FilterBrand ON Brand = [FilterBrand].[Items]
LEFT JOIN [dbo].[Split](#ItemCategory, ',') FilterItemCategory ON ItemCategory = [FilterItemCategory].[Items]
WHERE
(#Brand IS NULL OR (#Brand IS NOT NULL AND [FilterBrand].[Items] IS NOT NULL)) AND
(#ItemCategory IS NULL OR (#ItemCategory IS NOT NULL AND [FilterItemCategory].[Items] IS NOT NULL))
GROUP BY
[Brand]
Below is the split table-valued function that I found on the web:
CREATE function [dbo].[Split]
(
#String varchar(8000),
#Delimiter char(1)
)
RETURNS #Results TABLE (Items varchar(4000))
AS
BEGIN
IF (#String IS NULL OR #String = '') RETURN
DECLARE #i int, #j int
SELECT #i = 1
WHILE #i <= LEN(#String)
BEGIN
SELECT #j = CHARINDEX(#Delimiter, #String, #i)
IF #j = 0
BEGIN
SELECT #j = len(#String) + 1
END
INSERT #Results SELECT RTRIM(SUBSTRING(#String, #i, #j - #i))
SELECT #i = #j + LEN(#Delimiter)
END
RETURN
END
Following solution are with out using functions
Declare #IDs Varchar(100)
SET #IDs = '2,4,6'
Select IsNull(STUFF((Select ', '+ CAST([Name] As Varchar(100)) From [TableName]
Where CharIndex(','+Convert(Varchar,[ID])+',', ','+#IDs+',')> 0
For XML Path('')),1,1,''),'') As [ColumnName]
Here is the function I use. I also have another that wraps this to return numeric values which I find helpful as well.
Edit: Sorry, as for how to improve the performance of the query, I usually split the values into table variables and perform my joins to that but that probably won't change your performance, just your readability. The only thing I can see in terms of performance is your double checking whether your joins produce anything. You really can't get much better performance with two conditional left joins on two tables. It basically boils down to indexes at that point.
(#Brand IS NULL OR [FilterBrand].[Items] IS NOT NULL)
Function:
ALTER FUNCTION [dbo].[fn_SplitDelimittedList]
(
#DelimittedList varchar(8000),
#Delimitter varchar(20)
)
RETURNS
#List TABLE
(
Item varchar(100)
)
AS
BEGIN
DECLARE #DelimitterLength INT
SET #DelimitterLength = LEN(#Delimitter)
-- Tack on another delimitter so we get the last item properly
set #DelimittedList = #DelimittedList + #Delimitter
declare #Position int
declare #Item varchar(500)
set #Position = patindex('%' + #Delimitter + '%' , #DelimittedList)
while (#Position <> 0)
begin
set #Position = #Position - 1
set #Item = LTRIM(RTRIM(left(#DelimittedList, #Position)))
INSERT INTO #List (Item) VALUES (#Item)
set #DelimittedList = stuff(#DelimittedList, 1, #Position + #DelimitterLength, '')
set #Position = patindex('%' + #Delimitter + '%' , #DelimittedList)
end
RETURN
END
Hey just try the split function I have created without using any while loops here.And just use this in place of your split function and use col to match in LEFT join.
ALTER function dbo.SplitString(#inputStr varchar(1000),#del varchar(5))
RETURNS #table TABLE(col varchar(100))
As
BEGIN
DECLARE #t table(col1 varchar(100))
INSERT INTO #t
select #inputStr
if CHARINDEX(#del,#inputStr,1) > 0
BEGIN
;WITH CTE as(select ROW_NUMBER() over (order by (select 0)) as id,* from #t)
,CTE1 as (
select id,ltrim(rtrim(LEFT(col1,CHARINDEX(#del,col1,1)-1))) as col,RIGHT(col1,LEN(col1)-CHARINDEX(#del,col1,1)) as rem from CTE
union all
select c.id,ltrim(rtrim(LEFT(rem,CHARINDEX(#del,rem,1)-1))) as col,RIGHT(rem,LEN(rem)-CHARINDEX(#del,rem,1))
from CTE1 c
where CHARINDEX(#del,rem,1)>0
)
INSERT INTO #table
select col from CTE1
union all
select rem from CTE1 where CHARINDEX(#del,rem,1)=0
END
ELSE
BEGIN
INSERT INTO #table
select col1 from #t
END
RETURN
END
DECLARE #Brand varchar(MAX) = 'Brand 1,Brand 2,Brand 3',
#ItemCategory varchar(MAX) = ' IC1 A ,IC2 B , IC3 C, IC4 D' --'IC1, IC2, IC3, IC4, IC5'
select * from dbo.SplitString(#ItemCategory,',')

Passing a varchar full of comma delimited values to a SQL Server IN function

Duplicate of
Dynamic SQL Comma Delimited Value Query
Parameterized Queries with Like and In
I have a SQL Server Stored Procedure where I would like to pass a varchar full of comma delimited values to an IN function. For example:
DECLARE #Ids varchar(50);
SET #Ids = '1,2,3,5,4,6,7,98,234';
SELECT *
FROM sometable
WHERE tableid IN (#Ids);
This does not work of course. I get the error:
Conversion failed when converting the varchar value '1,2,3,5,4,6,7,98,234' to data type int.
How can I accomplish this (or something relatively similar) without resorting to building dynamic SQL?
Of course if you're lazy like me, you could just do this:
Declare #Ids varchar(50) Set #Ids = ',1,2,3,5,4,6,7,98,234,'
Select * from sometable
where Charindex(','+cast(tableid as varchar(8000))+',', #Ids) > 0
Don't use a function that loops to split a string!, my function below will split a string very fast, with no looping!
Before you use my function, you need to set up a "helper" table, you only need to do this one time per database:
CREATE TABLE Numbers
(Number int NOT NULL,
CONSTRAINT PK_Numbers PRIMARY KEY CLUSTERED (Number ASC)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
DECLARE #x int
SET #x=0
WHILE #x<8000
BEGIN
SET #x=#x+1
INSERT INTO Numbers VALUES (#x)
END
use this function to split your string, which does not loop and is very fast:
CREATE FUNCTION [dbo].[FN_ListToTable]
(
#SplitOn char(1) --REQUIRED, the character to split the #List string on
,#List varchar(8000) --REQUIRED, the list to split apart
)
RETURNS
#ParsedList table
(
ListValue varchar(500)
)
AS
BEGIN
/**
Takes the given #List string and splits it apart based on the given #SplitOn character.
A table is returned, one row per split item, with a column name "ListValue".
This function workes for fixed or variable lenght items.
Empty and null items will not be included in the results set.
Returns a table, one row per item in the list, with a column name "ListValue"
EXAMPLE:
----------
SELECT * FROM dbo.FN_ListToTable(',','1,12,123,1234,54321,6,A,*,|||,,,,B')
returns:
ListValue
-----------
1
12
123
1234
54321
6
A
*
|||
B
(10 row(s) affected)
**/
----------------
--SINGLE QUERY-- --this will not return empty rows
----------------
INSERT INTO #ParsedList
(ListValue)
SELECT
ListValue
FROM (SELECT
LTRIM(RTRIM(SUBSTRING(List2, number+1, CHARINDEX(#SplitOn, List2, number+1)-number - 1))) AS ListValue
FROM (
SELECT #SplitOn + #List + #SplitOn AS List2
) AS dt
INNER JOIN Numbers n ON n.Number < LEN(dt.List2)
WHERE SUBSTRING(List2, number, 1) = #SplitOn
) dt2
WHERE ListValue IS NOT NULL AND ListValue!=''
RETURN
END --Function FN_ListToTable
you can use this function as a table in a join:
SELECT
Col1, COl2, Col3...
FROM YourTable
INNER JOIN FN_ListToTable(',',#YourString) s ON YourTable.ID = s.ListValue
Here is your example:
Select * from sometable where tableid in(SELECT ListValue FROM dbo.FN_ListToTable(',',#Ids) s)
No Table No Function No Loop
Building on the idea of parsing your list into a table our DBA suggested using XML.
Declare #Ids varchar(50)
Set #Ids = ‘1,2,3,5,4,6,7,98,234’
DECLARE #XML XML
SET #XML = CAST('<i>' + REPLACE(#Ids, ',', '</i><i>') + '</i>' AS XML)
SELECT *
FROM
SomeTable
INNER JOIN #XML.nodes('i') x(i)
ON SomeTable .Id = x.i.value('.', 'VARCHAR(MAX)')
These seems to have the same performance as #KM's answer but, I think, a lot simpler.
You can create a function that returns a table.
so your statement would be something like
select * from someable
join Splitfunction(#ids) as splits on sometable.id = splits.id
Here is a simular function.
CREATE FUNCTION [dbo].[FUNC_SplitOrderIDs]
(
#OrderList varchar(500)
)
RETURNS
#ParsedList table
(
OrderID int
)
AS
BEGIN
DECLARE #OrderID varchar(10), #Pos int
SET #OrderList = LTRIM(RTRIM(#OrderList))+ ','
SET #Pos = CHARINDEX(',', #OrderList, 1)
IF REPLACE(#OrderList, ',', '') <> ''
BEGIN
WHILE #Pos > 0
BEGIN
SET #OrderID = LTRIM(RTRIM(LEFT(#OrderList, #Pos - 1)))
IF #OrderID <> ''
BEGIN
INSERT INTO #ParsedList (OrderID)
VALUES (CAST(#OrderID AS int)) --Use Appropriate conversion
END
SET #OrderList = RIGHT(#OrderList, LEN(#OrderList) - #Pos)
SET #Pos = CHARINDEX(',', #OrderList, 1)
END
END
RETURN
END
It's a very common question. Canned answer, several nice techniques:
http://www.sommarskog.se/arrays-in-sql-2005.html
This works perfectly! The below answers are too complicated. Don't look at this as dynamic. Set up your store procedure as follows:
(#id as varchar(50))
as
Declare #query as nvarchar(max)
set #query ='
select * from table
where id in('+#id+')'
EXECUTE sp_executesql #query
I can suggest using WITH like this:
DECLARE #Delim char(1) = ',';
SET #Ids = #Ids + #Delim;
WITH CTE(i, ls, id) AS (
SELECT 1, CHARINDEX(#Delim, #Ids, 1), SUBSTRING(#Ids, 1, CHARINDEX(#Delim, #Ids, 1) - 1)
UNION ALL
SELECT i + 1, CHARINDEX(#Delim, #Ids, ls + 1), SUBSTRING(#Ids, ls + 1, CHARINDEX(#Delim, #Ids, ls + 1) - CHARINDEX(#Delim, #Ids, ls) - 1)
FROM CTE
WHERE CHARINDEX(#Delim, #Ids, ls + 1) > 1
)
SELECT t.*
FROM yourTable t
INNER JOIN
CTE c
ON t.id = c.id;
I think a very simple solution could be following:
DECLARE #Ids varchar(50);
SET #Ids = '1,2,3,5,4,6,7,98,234';
SELECT *
FROM sometable
WHERE ','+#Ids+',' LIKE '%,'+CONVERT(VARCHAR(50),tableid)+',%';
Without using dynamic SQL, you have to take the input variable and use a split function to put the data into a temp table and then join to that.
Thanks, for your function I Used IT........................
This is my EXAMPLE
**UPDATE [RD].[PurchaseOrderHeader]
SET [DispatchCycleNumber] ='10'
WHERE OrderNumber in(select * FROM XA.fn_SplitOrderIDs(#InvoiceNumberList))**
CREATE FUNCTION [XA].[fn_SplitOrderIDs]
(
#OrderList varchar(500)
)
RETURNS
#ParsedList table
(
OrderID int
)
AS
BEGIN
DECLARE #OrderID varchar(10), #Pos int
SET #OrderList = LTRIM(RTRIM(#OrderList))+ ','
SET #Pos = CHARINDEX(',', #OrderList, 1)
IF REPLACE(#OrderList, ',', '') <> ''
BEGIN
WHILE #Pos > 0
BEGIN
SET #OrderID = LTRIM(RTRIM(LEFT(#OrderList, #Pos - 1)))
IF #OrderID <> ''
BEGIN
INSERT INTO #ParsedList (OrderID)
VALUES (CAST(#OrderID AS int)) --Use Appropriate conversion
END
SET #OrderList = RIGHT(#OrderList, LEN(#OrderList) - #Pos)
SET #Pos = CHARINDEX(',', #OrderList, 1)
END
END
RETURN
END
If you use SQL Server 2008 or higher, use table valued parameters; for example:
CREATE PROCEDURE [dbo].[GetAccounts](#accountIds nvarchar)
AS
BEGIN
SELECT *
FROM accountsTable
WHERE accountId IN (select * from #accountIds)
END
CREATE TYPE intListTableType AS TABLE (n int NOT NULL)
DECLARE #tvp intListTableType
-- inserts each id to one row in the tvp table
INSERT #tvp(n) VALUES (16509),(16685),(46173),(42925),(46167),(5511)
EXEC GetAccounts #tvp
Its been a while but I have done this in the past using XML as a interim.
I can't take any credit for this, but I'm afraid I no longer know where I got this idea from:
-- declare the variables needed
DECLARE #xml as xml,#str as varchar(100),#delimiter as varchar(10)
-- The string you want to split
SET #str='A,B,C,D,E,Bert,Ernie,1,2,3,4,5'
-- What you want to split on. Can be a single character or a string
SET #delimiter =','
-- Convert it to an XML document
SET #xml = cast(('<X>'+replace(#str,#delimiter ,'</X><X>')+'</X>') as xml)
-- Select back from the XML
SELECT N.value('.', 'varchar(10)') as value FROM #xml.nodes('X') as T(N)
Create a table function like below which parse comma separated varchar and returns a table that can be inner joined with other tables.
CREATE FUNCTION [dbo].[fn_SplitList]
(
#inString varchar(MAX) = '',
#inDelimiter char(1) = ',' -- Keep the delimiter to 100 chars or less. Generally a delimiter will be 1-2 chars only.
)
RETURNS #tbl_Return table
(
Unit varchar(1000) COLLATE Latin1_General_BIN
)
AS
BEGIN
INSERT INTO #tbl_Return
SELECT DISTINCT
LTRIM(RTRIM(piece.value('./text()[1]', 'varchar(1000)'))) COLLATE DATABASE_DEFAULT AS Unit
FROM
(
--
-- Replace any delimiters in the string with the "X" tag.
--
SELECT
CAST(('<X>' + REPLACE(s0.prsString, s0.prsSplitDelimit, '</X><X>') + '</X>') AS xml).query('.') AS units
FROM
(
--
-- Convert the string and delimiter into XML.
--
SELECT
(SELECT #inString FOR XML PATH('')) AS prsString,
(SELECT #inDelimiter FOR XML PATH('')) AS prsSplitDelimit
) AS s0
) AS s1
CROSS APPLY units.nodes('X') x(piece)
RETURN
END
=================================================
Now consume above created table function in your code,creation of function is one time activity in your database that can be used across databases as well on same server.
DECLARE #Ids varchar(50);
SET #Ids = '1,2,3,5,4,6,7,98,234';
SELECT
*
FROM sometable AS st
INNER JOIN fn_SplitList(#ids, ',') AS sl
ON sl.unit = st.tableid
I've written a stored procedure to show how to do this before.
You basically have to process the string.
I tried to post the code here but the formatting got all screwy.
IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = object_id(N'[dbo].[uspSplitTextList]') AND OBJECTPROPERTY(id, N'IsProcedure') = 1)
DROP PROCEDURE [dbo].[uspSplitTextList]
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_NULLS ON
GO
/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
-- uspSplitTextList
--
-- Description:
-- splits a separated list of text items and returns the text items
--
-- Arguments:
-- #list_text - list of text items
-- #Delimiter - delimiter
--
-- Notes:
-- 02/22/2006 - WSR : use DATALENGTH instead of LEN throughout because LEN doesn't count trailing blanks
--
-- History:
-- 02/22/2006 - WSR : revised algorithm to account for items crossing 8000 character boundary
-- 09/18/2006 - WSR : added to this project
--
CREATE PROCEDURE uspSplitTextList
#list_text text,
#Delimiter varchar(3)
AS
SET NOCOUNT ON
DECLARE #InputLen integer -- input text length
DECLARE #TextPos integer -- current position within input text
DECLARE #Chunk varchar(8000) -- chunk within input text
DECLARE #ChunkPos integer -- current position within chunk
DECLARE #DelimPos integer -- position of delimiter
DECLARE #ChunkLen integer -- chunk length
DECLARE #DelimLen integer -- delimiter length
DECLARE #ItemBegPos integer -- item starting position in text
DECLARE #ItemOrder integer -- item order in list
DECLARE #DelimChar varchar(1) -- first character of delimiter (simple delimiter)
-- create table to hold list items
-- actually their positions because we may want to scrub this list eliminating bad entries before substring is applied
CREATE TABLE #list_items ( item_order integer, item_begpos integer, item_endpos integer )
-- process list
IF #list_text IS NOT NULL
BEGIN
-- initialize
SET #InputLen = DATALENGTH(#list_text)
SET #TextPos = 1
SET #DelimChar = SUBSTRING(#Delimiter, 1, 1)
SET #DelimLen = DATALENGTH(#Delimiter)
SET #ItemBegPos = 1
SET #ItemOrder = 1
SET #ChunkLen = 1
-- cycle through input processing chunks
WHILE #TextPos <= #InputLen AND #ChunkLen <> 0
BEGIN
-- get current chunk
SET #Chunk = SUBSTRING(#list_text, #TextPos, 8000)
-- setup initial variable values
SET #ChunkPos = 1
SET #ChunkLen = DATALENGTH(#Chunk)
SET #DelimPos = CHARINDEX(#DelimChar, #Chunk, #ChunkPos)
-- loop over the chunk, until the last delimiter
WHILE #ChunkPos <= #ChunkLen AND #DelimPos <> 0
BEGIN
-- see if this is a full delimiter
IF SUBSTRING(#list_text, (#TextPos + #DelimPos - 1), #DelimLen) = #Delimiter
BEGIN
-- insert position
INSERT INTO #list_items (item_order, item_begpos, item_endpos)
VALUES (#ItemOrder, #ItemBegPos, (#TextPos + #DelimPos - 1) - 1)
-- adjust positions
SET #ItemOrder = #ItemOrder + 1
SET #ItemBegPos = (#TextPos + #DelimPos - 1) + #DelimLen
SET #ChunkPos = #DelimPos + #DelimLen
END
ELSE
BEGIN
-- adjust positions
SET #ChunkPos = #DelimPos + 1
END
-- find next delimiter
SET #DelimPos = CHARINDEX(#DelimChar, #Chunk, #ChunkPos)
END
-- adjust positions
SET #TextPos = #TextPos + #ChunkLen
END
-- handle last item
IF #ItemBegPos <= #InputLen
BEGIN
-- insert position
INSERT INTO #list_items (item_order, item_begpos, item_endpos)
VALUES (#ItemOrder, #ItemBegPos, #InputLen)
END
-- delete the bad items
DELETE FROM #list_items
WHERE item_endpos < item_begpos
-- return list items
SELECT SUBSTRING(#list_text, item_begpos, (item_endpos - item_begpos + 1)) AS item_text, item_order, item_begpos, item_endpos
FROM #list_items
ORDER BY item_order
END
DROP TABLE #list_items
RETURN
/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
GO
SET QUOTED_IDENTIFIER OFF
GO
SET ANSI_NULLS ON
GO
I have same idea with user KM. but do not need extra table Number. Just this function only.
CREATE FUNCTION [dbo].[FN_ListToTable]
(
#SplitOn char(1) --REQUIRED, the character to split the #List string on
,#List varchar(8000) --REQUIRED, the list to split apart
)
RETURNS
#ParsedList table
(
ListValue varchar(500)
)
AS
BEGIN
DECLARE #number int = 0
DECLARE #childString varchar(502) = ''
DECLARE #lengthChildString int = 0
DECLARE #processString varchar(502) = #SplitOn + #List + #SplitOn
WHILE #number < LEN(#processString)
BEGIN
SET #number = #number + 1
SET #lengthChildString = CHARINDEX(#SplitOn, #processString, #number + 1) - #number - 1
IF #lengthChildString > 0
BEGIN
SET #childString = LTRIM(RTRIM(SUBSTRING(#processString, #number + 1, #lengthChildString)))
IF #childString IS NOT NULL AND #childString != ''
BEGIN
INSERT INTO #ParsedList(ListValue) VALUES (#childString)
SET #number = #number + #lengthChildString - 1
END
END
END
RETURN
END
And here is the test:
SELECT ListValue FROM dbo.FN_ListToTable('/','a/////bb/c')
Result:
ListValue
______________________
a
bb
c
-- select * from dbo.Split_ID('77,106')
ALTER FUNCTION dbo.Split_ID(#String varchar(8000))
returns #temptable TABLE (ID varchar(8000))
as
begin
declare #idx int
declare #slice varchar(8000)
declare #Delimiter char(1)
set #Delimiter =','
select #idx = 1
if len(#String)<1 or #String is null return
while #idx!= 0
begin
set #idx = charindex(#Delimiter,#String)
if #idx!=0
set #slice = left(#String,#idx - 1)
else
set #slice = #String
if(len(#slice)>0)
insert into #temptable(ID) values(#slice)
set #String = right(#String,len(#String) - #idx)
if len(#String) = 0 break
end
return
end
You could do it like this:
create or replace
PROCEDURE UDP_SETBOOKMARK
(
P_USERID IN VARCHAR2
, P_BOOKMARK IN VARCHAR2
) AS
BEGIN
UPDATE T_ER_Bewertung
SET LESEZEICHEN = P_BOOKMARK
WHERE STAMM_ID in( select regexp_substr(P_USERID,'[^,]+', 1, level) from dual
connect by regexp_substr(P_USERID, '[^,]+', 1, level) is not null )
and ER_ID = (select max(ER_ID) from T_ER_Bewertung_Kopie);
commit;
END UDP_SETBOOKMARK;
Then try it with
Begin
UDP_SETBOOKMARK ('1,2,3,4,5', 'Test');
End;
You can use this IN-Clause with regexp_substr in other situations too, just try it.
Error 493: The column 'i' that was returned from the nodes() method cannot be
used directly. It can only be used with one of the four XML data type
methods, exist(), nodes(), query(), and value(), or in IS NULL and IS NOT
NULL checks.
The above errorr was fixed in SQL Server 2014 by using following snippet
Declare #Ids varchar(50)
Set #Ids = '1,2,3,5,4,6,7,98,234'
DECLARE #XML XML
SET #XML = CAST('<i>' + REPLACE(#Ids, ',', '</i><i>') + '</i>' AS XML)
SELECT SomeTable.*
FROM
SomeTable
cross apply #XML.nodes('i') x(i)
where SomeTable .Id = x.i.value('.', 'VARCHAR(MAX)')
Try this:
SELECT ProductId, Name, Tags
FROM Product
WHERE '1,2,3,' LIKE '%' + CAST(ProductId AS VARCHAR(20)) + ',%';
As said on the last example of this link
Tons of answers here, but to add my two cents I think STRING_SPLIT is a very simple approach to this sort of problem:
DECLARE #Ids varchar(50);
SET #Ids = '1,2,3,5,4,6,7,98,234';
SELECT *
FROM sometable
WHERE tableid IN;
(SELECT value FROM STRING_SPLIT(#Ids, ','))
Best and simple approach.
DECLARE #AccumulateKeywordCopy NVARCHAR(2000),#IDDupCopy NVARCHAR(50);
SET #AccumulateKeywordCopy ='';
SET #IDDupCopy ='';
SET #IDDup = (SELECT CONVERT(VARCHAR(MAX), <columnName>) FROM <tableName> WHERE <clause>)
SET #AccumulateKeywordCopy = ','+#AccumulateKeyword+',';
SET #IDDupCopy = ','+#IDDup +',';
SET #IDDupCheck = CHARINDEX(#IDDupCopy,#AccumulateKeywordCopy)
CREATE TABLE t
(
id INT,
col1 VARCHAR(50)
)
INSERT INTO t
VALUES (1,
'param1')
INSERT INTO t
VALUES (2,
'param2')
INSERT INTO t
VALUES (3,
'param3')
INSERT INTO t
VALUES (4,
'param4')
INSERT INTO t
VALUES (5,
'param5')
DECLARE #params VARCHAR(100)
SET #params = ',param1,param2,param3,'
SELECT *
FROM t
WHERE Charindex(',' + Cast(col1 AS VARCHAR(8000)) + ',', #params) > 0
working fiddle find here Fiddle
I ran into the same issue, and I don't want to have any footprint on the source database - i.e. no stored procedures or functions. I went about it this way:
declare #IDs table (Value int)
insert into #IDs values(1)
insert into #IDs values(2)
insert into #IDs values(3)
insert into #IDs values(5)
insert into #IDs values(4)
insert into #IDs values(6)
insert into #IDs values(7)
insert into #IDs values(98)
insert into #IDs values(234)
SELECT *
FROM sometable
WHERE tableid IN (select Value from #IDs)
The answer by #RBarryYoung (above) worked for me.
But when you have spaces in between the comma separated string values, then it will omit IDs with spaces. So I removed the spaces.
Take a look at the code snippet below.
Declare #Ids varchar(50) Set #Ids = '1 , 2,3'
set #Ids=','+Replace(#Ids,' ', '')+',';
Select * from [tblEmployee]
where Charindex(','+cast(ID as varchar(8000))+',', #Ids) > 0
WHERE someId IN (SELECT convert(int, value) FROM string_split(#stringOfCommaDelimitedIds, ','))
The simplest way i found was to use FIND_IN_SET
FIND_IN_SET(column_name, values)
values=(1,2,3)
SELECT name WHERE FIND_IN_SET(id, values)
This came in handy for one of my requirements where I did not want to use CTE and also did not want to go with the inner join.
DECLARE #Ids varchar(50);
SET #Ids = '1,2,3,5,4,6,7,98,234';
SELECT
cn1,cn2,cn3
FROM tableName
WHERE columnName in (select Value from fn_SplitString(#ids, ','))
Function for split string :
CREATE FUNCTION [dbo].[fn_SplitString] ( #stringToSplit VARCHAR(MAX), #seperator Char )
RETURNS
#returnList TABLE ([Value] [nvarchar] (500))
AS
BEGIN
DECLARE #name NVARCHAR(255)
DECLARE #pos INT
WHILE CHARINDEX(#seperator, #stringToSplit) > 0
BEGIN
SELECT #pos = CHARINDEX(#seperator, #stringToSplit)
SELECT #name = SUBSTRING(#stringToSplit, 1, #pos-1)
INSERT INTO #returnList
SELECT #name
SELECT #stringToSplit = SUBSTRING(#stringToSplit, #pos+1, LEN(#stringToSplit)-#pos)
END
INSERT INTO #returnList
SELECT #stringToSplit
RETURN
END