I have a table say "user"which is having a col "access" having multi values separated by comma.
and i have another table " codes" which has a column "SCRCODES" having some user codes as single valued.
so i need to check whether the multi values in the col "access" of the table "user" is having any of the values present in the "SCRCODES" col of the table "codes"
someone please advise on this.
Thanks
i think this will help you:
ALTER FUNCTION [dbo].[Split]
(
#RowData NVARCHAR(MAX) ,
#SplitOn NVARCHAR(5)
)
RETURNS #ReturnValue TABLE ( Data NVARCHAR(MAX) )
AS
BEGIN
DECLARE #Counter INT
SET #Counter = 1
WHILE ( CHARINDEX(#SplitOn, #RowData) > 0 )
BEGIN
INSERT INTO #ReturnValue
( data
)
SELECT Data = LTRIM(RTRIM(SUBSTRING(#RowData, 1,
CHARINDEX(#SplitOn,
#RowData) - 1)))
SET #RowData = SUBSTRING(#RowData,
CHARINDEX(#SplitOn, #RowData) + 1,
LEN(#RowData))
SET #Counter = #Counter + 1
END
INSERT INTO #ReturnValue
( data )
SELECT Data = LTRIM(RTRIM(#RowData))
RETURN
END;
GO
DECLARE #str VARCHAR(MAX)
SET #str = select access from users where oid = "1"
SELECT *
FROM codes c, users u where c.SCRCODES in dbo.Split(#str, ',')
I assume that your sercodes does not contain comma.
You can do something like this:
select sercodes from codes
inner join users
on user.codeid = codes.codeid
where charindex(sercodes + ',', access) > 0 or charindex(',' + sercodes , access) > 0
The idea is that access will be stored like this way "read, write, execute". So, it will be either end with comma or start with comma and part of the string..
Please let me know whether it is working. You can give actual table data and design to get more accurate query.
Related
I have a column that contains some value like : ;1;3;7;2;
And another column with values like : ;5;2;3;
I need to know if at least one of the number in the second column (5,2 or 3) is contained in the first column.
Of course this is an example, I have to do it for several records.
Do you have an idea ?
Here is my code :
SELECT *
FROM COMPANIES
WHERE F_SKILLS IN F_CONVENTION
Check This.
Using below query you can find all common numbers appeared in both columns.
First Create Function "[SplitLongString]":
create FUNCTION [dbo].[SplitLongString]
(
#DelimitedString VARCHAR(MAX),
#Delimiter VARCHAR(100)
)
RETURNS
#tblArray TABLE
(
ElementID INT IDENTITY(1,1),
Element VARCHAR(1000)
)
AS
BEGIN
DECLARE
#siIndex INT,
#siStart INT,
#siDelSize INT
SET #siDelSize = LEN(#Delimiter)
--loop through source string and add elements to destination table array
WHILE LEN(#DelimitedString) > 0
BEGIN
SET #siIndex = CHARINDEX(#Delimiter, #DelimitedString)
IF #siIndex = 0
BEGIN
INSERT INTO #tblArray VALUES(#DelimitedString)
BREAK
END
ELSE
BEGIN
INSERT INTO #tblArray VALUES(SUBSTRING(#DelimitedString, 1,#siIndex - 1))
SET #siStart = #siIndex + #siDelSize
SET #DelimitedString = SUBSTRING(#DelimitedString, #siStart , LEN(#DelimitedString) - #siStart + 1)
END
END
RETURN
END
after you can cross apply to seprate out commo or semi colon. You will get common element under column element. use these column for your further use.
select A.*,y.Element common_element--,X.Element
from #COMPANIES A
CROSS APPLY SplitLongString(F_SKILLS,';') y
CROSS APPLY SplitLongString(F_CONVENTION,';') X
where x.Element=y.Element and ( X.Element!=' ' or X.Element!= null)
Output :
let us know if you have any query.
You can use default function that is dbo.Split('5;2;3;',',')
if you don't have this function you can create your own
Create Function
CREATE FUNCTION SplitString
(
#Input NVARCHAR(MAX),
#Character CHAR(1)
)
RETURNS #Output TABLE (
Item NVARCHAR(1000)
)
AS
BEGIN
DECLARE #StartIndex INT, #EndIndex INT
SET #StartIndex = 1
IF SUBSTRING(#Input, LEN(#Input) - 1, LEN(#Input)) <> #Character
BEGIN
SET #Input = #Input + #Character
END
WHILE CHARINDEX(#Character, #Input) > 0
BEGIN
SET #EndIndex = CHARINDEX(#Character, #Input)
INSERT INTO #Output(Item)
SELECT SUBSTRING(#Input, #StartIndex, #EndIndex - 1)
SET #Input = SUBSTRING(#Input, #EndIndex + 1, LEN(#Input))
END
RETURN
END
GO
after creating function you can add Condition to your Query
select * from yourTableName tbl where (select * from dbo.SplitString(tbl.YourColumnWithSemicoluns,';')) in (select * from dbo.SplitString('5;2;3;',';'))
If you're using SQL Server 2016, check out the string_split function.
Assuming you're not, you can create a split function as per previous answer.
If this isn't an option you can do it with a CTE, but it is likely to be inefficient if you have a large dataset.
create table test(col1 varchar(100), col2 varchar(100));
insert into test values ('a;b;c', 'c;d;e'),('a;b;c','d;e;f'), ('a;b;c', 'b;a;d')
;WITH SplitSting AS
(
SELECT
col1, col2, LEFT(col1,CHARINDEX(';',col1)-1) AS value
,RIGHT(col1,LEN(col1)-CHARINDEX(';',col1)) AS remainder
FROM test
WHERE col1 IS NOT NULL AND CHARINDEX(';',col1)>0
UNION ALL
SELECT
col1, col2,LEFT(remainder,CHARINDEX(';',remainder)-1)
,RIGHT(remainder,LEN(remainder)-CHARINDEX(';',remainder))
FROM SplitSting
WHERE remainder IS NOT NULL AND CHARINDEX(';',remainder)>0
UNION ALL
SELECT
col1, col2,remainder,null
FROM SplitSting
WHERE remainder IS NOT NULL AND CHARINDEX(';',remainder)=0
)
SELECT distinct col1, col2 FROM SplitSting
where ';'+col2+';' like '%;'+value+';%'
If it's a finite set of just a few numbers, you might be able to get away with something as simple as:
SELECT * FROM companies
WHERE (f_skills LIKE '%;1;%' AND f_convention LIKE '%;1;%')
OR (f_skills LIKE '%;2;%' AND f_convention LIKE '%;2;%')
OR (f_skills LIKE '%;3;%' AND f_convention LIKE '%;3;%')
...
If that doesn't work... Well, looks like some of the other answers on the page may be bit more comprehensive... Almost embarrassingly so. Although, if the numbers are really just 1-9 like the question suggests, I stand by my answer. :) I know it looks a little pitiful in comparison, but, seriously, it just might work! If not, I'd start with the one from Mr. Bhosale.
I am trying to compare a database field which stores list items (comma separated) with unfortunately a variable which is also a list item.
Example:
In this case, a user can belong to multiple groups, and content access is also allocated to multiple groups.
contentid | group
(1) (c,d)
(2) (a,c)
(3) (b)
So, I need to select all content where user is in group (a,c). In this case, contentid 1,2 should be returned.
Here's a safe but slow solution for SQL 2008
BEGIN
-- setup
DECLARE #tbl TABLE (
[contentid] INT
,[group] VARCHAR(MAX)
)
INSERT INTO #tbl VALUES
(1, 'c,d')
,(2, 'a,c')
,(3, 'd')
-- send your request as simple xml
DECLARE #param XML
SET #param = '<g>a</g><g>c</g>'
-- query
SELECT DISTINCT contentid
FROM #tbl t
INNER JOIN #param.nodes('/g') AS t2(g)
ON ',' + t.[group] + ',' LIKE '%,' + t2.g.value('.', 'varchar(max)') + ',%'
END
You just pass your query in as an XML snippet instead of a comma separated list.
If your group names are single characters or you can be sure the names are not character-subsets of each other (ie: GroupA, GroupAB), then the query can be optimized to.
ON t.[group] LIKE '%' + t2.g.value('.', 'varchar(max)') + '%'
If you're using a RDBMS without XML parsing capability you'll have to use string split your query into a temp table and work it that way.
You really should not be using comma separated values inside your columns. It would be much better if the [group] column only contained one value and you had repeated entries with a UNIQUE constraint on the composite (contentid, group).
You might find this question and answer useful : How do I split a string so I can access item x?
Or you could always use something like this :
create function SplitString(
#string varchar(max),
#delimiter char(1)
)
returns #items table (item varchar(max))
as
begin
declare #index int set #index = 0
if (#delimiter is null) set #delimiter = ','
declare #prevdelimiter int set #prevdelimiter = 0
while (#index < len(#string)) begin
if (substring(#string, #index, 1) = #delimiter) begin
insert into #items
select substring(#string, #prevdelimiter, #index-#prevdelimiter)
set #prevdelimiter = #index + 1
end
set #index = #index + 1
end
--last item (or only if there were no delimiters)
insert into #items
select substring(#string, #prevdelimiter, #index - #prevdelimiter + 1)
return
end
go
declare #content table(contentid int, [group] varchar(max))
insert into #content
select 1, 'c,d'
union
select 2, 'a,c'
union
select 3, 'b'
declare #groups varchar(max) set #groups = 'a,c'
declare #grouptable table(item varchar(max))
insert into #grouptable
select * from dbo.SplitString(#groups, ',')
select * From #content
where (select count(*) from #grouptable g1 join dbo.SplitString([group], ',') g2 on g1.item = g2.item) > 0
im doing a search page where i have to search multiple fields with a single textbox.
so i will get the search text as a CSV string in my stored procedure
My table is as below
ID Name age
5 bob 23
6 bod.harry 34
7 charles 44
i need a sql query something like this
declare #searchtext='bob,harry,charley'
select * from employee where name like (#searchtext)
this query should return both this records (id 5 and 6)
You can use this way in Stored Procedure,
declare #searchtext varchar(1000)
set searchtext ='bob,harry,charley'
declare #filter varchar(2000)
set #filter = '(name LIKE ''%' + replace('bob,harry,charley',',','%'' OR name LIKE ''%') + '%'')'
exec
('
select *
from mytab
where ' + #filter + '
'
)
Use (or adapt) this splitting function:
ALTER FUNCTION [dbo].CsvToList(#SplitOn char(1), #List varchar(8000))
RETURNS TABLE
AS
RETURN
(
SELECT
ROW_NUMBER() OVER(ORDER BY number) AS RowNumber
,LTRIM(RTRIM(SUBSTRING(ListValue, number+1, CHARINDEX(#SplitOn, ListValue, number+1)-number - 1))) AS ListValue
FROM (
SELECT #SplitOn + #List + #SplitOn AS ListValue
) AS InnerQuery
INNER JOIN master.dbo.spt_values n ON n.Number < LEN(InnerQuery.ListValue)
WHERE SUBSTRING(ListValue, number, 1) = #SplitOn
AND n.type = 'P'
);
GO
usage
declare #searchtext='bob,harry,charley'
select DISTINCT * from employee e
JOIN dbo.csvToList(',', #searchtext) f
ON f.ListValue = e.name
You'll need to break #searchtext into multiple strings, one for each name. It's doable in TSQL but may be easier in your application code. You can then compare those with your Name field.
If I'm not mistaken Sql-Server doesn't support Regex. You can use table valued parameters. If you are using Entity framework the you could do so.
var dc = new MyContext();
var result = dc.employees.Where(x => new [] { "bob", "harry", "charley" }.Contains(x.name));
and finally you might construct the following
select * from employee where name in (#Param1, #Param2, #Param3, #Param4)
EDIT
I highly discourage you to use CSV because of the performance drop (you have to parse your csv) and possibility of errors (consider this csv Foo,Bar,"Foo with, comma","comma, "" and quote")
P.S. If you use table valued parameter when you assign the value use DataTable as source.
The above version of [dbo].CsvToList does not work with long input string with a lot of separators. Table spt_values where type='P' has limited number of records. In my case the function returned 16 rows instead of 66. Some advise to create your own table with numbers. I used a different version of this function I copied from other place:
CREATE FUNCTION [dbo].[fngCsvToList](#SplitOn char(1), #List varchar(8000))
RETURNS #Result TABLE (ListValue varchar(100))
AS
BEGIN
DECLARE #str VARCHAR(20)
DECLARE #ind Int
IF(#List is not null)
BEGIN
SET #List = REPLACE(REPLACE(REPLACE(LTRIM(RTRIM(#List)), CHAR(10), ''), CHAR(13), ''), CHAR(9), '')
SET #ind = CharIndex(#SplitOn, #List)
WHILE #ind > 0
BEGIN
SET #str = SUBSTRING(#List, 1, #ind-1)
SET #List = SUBSTRING(#List, #ind+1, LEN(#List)-#ind)
INSERT INTO #Result values (LTRIM(RTRIM(#str)))
SET #ind = CharIndex(',',#List)
END
SET #str = #List
INSERT INTO #Result values (LTRIM(RTRIM(#str) ))
END
RETURN
END
Ok, I had trouble describing this. I have:
material table (materialID, material, etc...)
ThicknessRange table (ThicknessRangeID, ThicknessRange)
MaterialThicknessRange table (MaterialID, ThicknessRangeID)
I am trying to retrieve all MaterialID's from the MaterialThicknessRange table that fit all required ThicknessRangeID's.
For example, any MaterialID with ThicknessRangeID 1 AND ThicknessRangeID 2, etc with a variable number of ThicknessRangeID's (selected from checkboxes by the user).
Thanks in advance.
Are you guaranteed to have only one entry in the MaterialThicknessRange table for a given Material/ThicknessRange combination?
SELECT MaterialID, COUNT(MaterialID) As NumMaterialThicknesses
FROM MaterialThicknessRange
WHERE ThicknessRangeID IN (1, 2)
GROUP BY MaterialID
HAVING COUNT(MaterialID) > 1
I'm using something like this
select MaterialID from MaterialThicknessRange MTR inner join
dbo.TransformCSVToTable('1,2,15') IDs on MTR.ThiknessRangeID = IDs.ID
where dbo.TransformCSVToTable is a user defined function to transform a csv string to a one column table. Bellow is one sample of such function
ALTER FUNCTION [dbo].[fn_IntegerParameterListFromString]
(
#IntegerParameterList varchar(max)
)
RETURNS #result TABLE (IntegerID int)
AS
begin
declare #temp table (IntegerID int)
declare #s varchar(max), #s1 varchar(10)
declare #len int
set #len =len(#IntegerParameterList)
set #s = #IntegerParameterList
if (right(#s,1)<>',') set #s = #s +','
while #s<>''
begin
set #s1 = substring(#s,1,charindex(',',#s)-1)
if (isnumeric(#s1)= 1)
insert #result (IntegerID) Values ( Cast(#s1 as int))
if (CHARINDEX(',',#s)>0)
begin
set #s = substring (#s, charindex(',',#s)+1, #Len)
end
else
begin
if isnumeric(#s) = 1
insert #result (IntegerID) Values ( Cast(#s as int))
set #s = ''
end
end
return
end
DECLARE #STR_IDS VARCHAR(15)
SET #STR_IDS='7,15,18'
UPDATE TBL_USERS WHERE ID IN #STR_IDS
I know the update statement would not work as the ID is of type INT and i am replacing a varachar value there .How can i change the query so that it will be executed like this in effect ?
UPDATE TBL_USERS WHERE ID IN (7,15,18)
Thanks in advace
Op doesn't mention database, so I'll just use SQL Server, because the example SQL in the question looks like TSQL. There are many ways to split string in SQL Server. This article covers the PROs and CONs of just about every method:
"Arrays and Lists in SQL Server 2005 and Beyond, When Table Value Parameters Do Not Cut it" by Erland Sommarskog
You need to create a split function. This is how a split function can be used:
SELECT
*
FROM YourTable y
INNER JOIN dbo.yourSplitFunction(#Parameter) s ON y.ID=s.Value
I prefer the number table approach to split a string in TSQL but there are numerous ways to split strings in SQL Server, see the previous link, which explains the PROs and CONs of each.
For the Numbers Table method to work, you need to do this one time table setup, which will create a table Numbers that contains rows from 1 to 10,000:
SELECT TOP 10000 IDENTITY(int,1,1) AS Number
INTO Numbers
FROM sys.objects s1
CROSS JOIN sys.objects s2
ALTER TABLE Numbers ADD CONSTRAINT PK_Numbers PRIMARY KEY CLUSTERED (Number)
Once the Numbers table is set up, create this split function:
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 TABLE
AS
RETURN
(
----------------
--SINGLE QUERY-- --this will not return empty rows
----------------
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!=''
);
GO
You can now easily split a CSV string into a table and join on it or use it however you need, even from within dynamic sql. Here is how to use it from your question:
UPDATE t
SET Col1=...
FROM dbo.FN_ListToTable(',','7,15,18') dt
INNER JOIN TBL_USERS t ON CAST(dt.value AS INT)=t.id
Lately I prefer to use User-Defined Table Types to pass lists of parameters, but I used to use this utility function:
CREATE FUNCTION [dbo].[fn_CommasToIntTable]
(
#CommaList varchar(8000)
)
RETURNS #ParsedList TABLE
(
TokenID int
)
AS
BEGIN
DECLARE #CurrentToken varchar(10)
DECLARE #Pos int
SET #CommaList = LTRIM(RTRIM(#CommaList))+ ','
SET #Pos = CHARINDEX(',', #CommaList, 1)
IF REPLACE(#CommaList, ',', '') <> ''
BEGIN
WHILE #Pos > 0
BEGIN
SET #CurrentToken = LTRIM(RTRIM(LEFT(#CommaList, #Pos - 1)))
IF #CurrentToken <> ''
BEGIN
INSERT #ParsedList (TokenID)
VALUES (CAST(#CurrentToken AS int))
END
SET #CommaList = RIGHT(#CommaList, LEN(#CommaList) - #Pos)
SET #Pos = CHARINDEX(',', #CommaList, 1)
END
END
RETURN
END
You'd use it like this:
SELECT (Columns)
FROM (Table)
WHERE ID IN (SELECT TokenID FROM dbo.fn_CommasToIntTable(#idList))
Stolen from here:
CREATE FUNCTION fn_Split(#text varchar(8000), #delimiter varchar(20) = ' ')
RETURNS #Strings TABLE
(
position int IDENTITY PRIMARY KEY,
value varchar(8000)
)
AS
BEGIN
DECLARE #index int
SET #index = -1
WHILE (LEN(#text) > 0)
BEGIN
SET #index = CHARINDEX(#delimiter , #text)
IF (#index = 0) AND (LEN(#text) > 0)
BEGIN
INSERT INTO #Strings VALUES (#text)
BREAK
END
IF (#index > 1)
BEGIN
INSERT INTO #Strings VALUES (LEFT(#text, #index - 1))
SET #text = RIGHT(#text, (LEN(#text) - #index))
END
ELSE
SET #text = RIGHT(#text, (LEN(#text) - #index))
END
RETURN
END
The just do:
UPDATE tbl_users
SET ...
FROM fn_split('7,15,18', ',') q
JOIN tbl_users
ON id = CAST(q.value AS INT)
for mysql its really easy
just use FIND_IN_SET function
UPDATE TBL_USERS WHERE FIND_IN_SET ( id , '7,15,18')