I have two variables, 1 varchar named cust_ref, and 1 int named associated_ids. What I'm trying to accomplish is the following:
You provide cust_ref with a value which will usually result in between 1+ rows being returned from the Customer table. I am concerned with gathering all customer_id records for that cust_ref and storing them in the associated_ids variable seperated by commars.
This is the SQL I have so far, and obviously is only loading one of the customer_id records into the variable. Based on this example I would like select #associated_ids to return the following 75458,77397,94955
declare #cust_ref varchar(20) = 'ABGR55532'
declare #associated_ids int
select distinct #associated_ids = customer_id
from dbo.Customer
where cust_ref = #cust_ref
select #associated_ids
select *
from dbo.Customer
where cust_ref = #cust_ref
Here is the results from the above, as you can see there are actually 3 associated_ids that I need stored in the variable in this example but my command is capturing the largest, I want all 3 seperated by commars.
declare #cust_ref varchar(20) = 'ABGR55532' --from your code
DECLARE #result varchar(100)
set #result =
(SELECT distinct (customer_id + ' ')
FROM dbo.Customer
where cust_ref = #cust_ref --from your code
ORDER BY (customer_id + ' ')
FOR XML PATH (''))
SELECT REPLACE(RTRIM(#result),' ',',')
You could try something like this ... obviously, some adjustment will be needed:
create table x (id varchar(50),num int)
insert into x (id,num) values ('75458','20')
insert into x (id,num) values ('77397','20')
insert into x (id,num) values ('94955','20')
and then,
create function GetList (#num as varchar(10))
returns varchar(100)
as
begin
declare #List varchar(100)
select #List = COALESCE(#List + ', ', '') + id
from x
where num = #num
return #List
end
Then, use something like this to get the values:
select distinct num,dbo.GetList(num) from x
Here you go
DECLARE #cust_ref varchar(20) = 'ABGR55532' --from your code
DECLARE #result varchar(100)
set #result =
(SELECT distinct (cast(customer_id as varchar) + ' ')
FROM dbo.Customer
where cust_ref = #cust_ref --from your code
ORDER BY (cast(customer_id as varchar) + ' ')
FOR XML PATH (''))
SELECT REPLACE(RTRIM(#result),' ',',')
Related
I'm using SQL server 2014 I try to get row that have multi-value in name like:
declare #value ='m n'
So the value that return should have 'm' and 'n' in any position
I tried to use
Select * from Table where contains(name,N'"*m*" and "*n*"')
But the value return only if it started by 'm' and 'n'
I had also tried:
select * from Table where name like '%m%n%'
the value return only if name contains 'm' then 'n' not 'n' then 'm'.
Note: I'm getting value from parameter so I don't known how many char or what position so I'm using replace on #value to get what I want.
Since you want to use that variable.
Then best split the letters or words.
Having the STRING_SPLIT function would be great for this.
But there are more ways to split strings.
The example below does it with a WHILE loop.
CREATE TABLE [Table]
( id INT IDENTITY(101,1) PRIMARY KEY,
name NVARCHAR(100) NOT NULL
);
GO
✓
INSERT INTO [Table] (name) VALUES
('a munchkin'),
('never ever sever mah lever'),
('saintess'),
('them mammaries');
GO
4 rows affected
DECLARE #value NVARCHAR(1000);
SET #value =' m n ';
DECLARE #values TABLE (
value NVARCHAR(42)
);
DECLARE #words NVARCHAR(1000);
DECLARE #word NVARCHAR(42);
SET #words = RTRIM(LTRIM(#value))+' ';
WHILE CHARINDEX(' ', #words) > 0
BEGIN
SET #word = SUBSTRING(#words,0,CHARINDEX(' ',#words))
SET #words = LTRIM(SUBSTRING(#words,CHARINDEX(' ',#words)+1,LEN(#words)))
IF #word != '' INSERT INTO #values (value) VALUES (#word);
END;
DECLARE #TotalValues INT;
SET #TotalValues = (select count(distinct value) from #values);
--
-- use the table variable to query the table
--
SELECT *
FROM [Table] t
WHERE EXISTS
(
SELECT 1
FROM #values v
WHERE t.name LIKE '%'+v.value+'%'
HAVING COUNT(DISTINCT v.value) = #TotalValues
);
GO
id | name
--: | :-------------------------
101 | a munchkin
102 | never ever sever mah lever
db<>fiddle here
You have to separate your conditions like this
select * from Table where name like '%m%' and name like '%n%'
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.
Have a Table with the CSV Values in the columns as below
ID Name text
1 SID,DOB 123,12/01/1990
2 City,State,Zip NewYork,NewYork,01234
3 SID,DOB 456,12/21/1990
What is need to get is 2 tables in this scenario as out put with the corresponding values
ID SID DOB
1 123 12/01/1990
3 456 12/21/1990
ID City State Zip
2 NewYork NewYork 01234
Is there any way of achieving it using a Cursor or any other method in SQL server?
There are several ways that this can be done. One way that I would suggest would be to split the data from the comma separated list into multiple rows.
Since you are using SQL Server, you could implement a recursive CTE to split the data, then apply a PIVOT function to create the columns that you want.
;with cte (id, NameItem, Name, textItem, text) as
(
select id,
cast(left(Name, charindex(',',Name+',')-1) as varchar(50)) NameItem,
stuff(Name, 1, charindex(',',Name+','), '') Name,
cast(left(text, charindex(',',text+',')-1) as varchar(50)) textItem,
stuff(text, 1, charindex(',',text+','), '') text
from yt
union all
select id,
cast(left(Name, charindex(',',Name+',')-1) as varchar(50)) NameItem,
stuff(Name, 1, charindex(',',Name+','), '') Name,
cast(left(text, charindex(',',text+',')-1) as varchar(50)) textItem,
stuff(text, 1, charindex(',',text+','), '') text
from cte
where Name > ''
and text > ''
)
select id, SID, DOB
into table1
from
(
select id, nameitem, textitem
from cte
where nameitem in ('SID', 'DOB')
) d
pivot
(
max(textitem)
for nameitem in (SID, DOB)
) piv;
See SQL Fiddle with Demo. The recursive version will work great but if you have a large dataset, you could have some performance issues so you could also use a user defined function to split the data:
create FUNCTION [dbo].[Split](#String1 varchar(MAX), #String2 varchar(MAX), #Delimiter char(1))
returns #temptable TABLE (colName varchar(MAX), colValue varchar(max))
as
begin
declare #idx1 int
declare #slice1 varchar(8000)
declare #idx2 int
declare #slice2 varchar(8000)
select #idx1 = 1
if len(#String1)<1 or #String1 is null return
while #idx1 != 0
begin
set #idx1 = charindex(#Delimiter,#String1)
set #idx2 = charindex(#Delimiter,#String2)
if #idx1 !=0
begin
set #slice1 = left(#String1,#idx1 - 1)
set #slice2 = left(#String2,#idx2 - 1)
end
else
begin
set #slice1 = #String1
set #slice2 = #String2
end
if(len(#slice1)>0)
insert into #temptable(colName, colValue) values(#slice1, #slice2)
set #String1 = right(#String1,len(#String1) - #idx1)
set #String2 = right(#String2,len(#String2) - #idx2)
if len(#String1) = 0 break
end
return
end;
Then you can use a CROSS APPLY to get the result for each row:
select id, SID, DOB
into table1
from
(
select t.id,
c.colname,
c.colvalue
from yt t
cross apply dbo.split(t.name, t.text, ',') c
where c.colname in ('SID', 'DOB')
) src
pivot
(
max(colvalue)
for colname in (SID, DOB)
) piv;
See SQL Fiddle with Demo
You'd need to approach this as a multi-step ETL project. I'd probably start with exporting the two types of rows into a couple staging tables. So, for example:
select * from yourtable /* rows that start with a number */
where substring(text,1,1) in
('0','1','2','3','4','5','6','7','8','9')
select * from yourtable /* rows that don't start with a number */
where substring(text,1,1)
not in ('0','1','2','3','4','5','6','7','8','9')
/* or simply this to follow your example explicitly */
select * from yourtable where name like 'sid%'
select * from yourtable where name like 'city%'
Once you get the two types separated then you can split them out with one of the already written split functions found readily out on the interweb.
Aaron Bertrand (who is on here often) has written up a great post on the variety of ways to split comma delimted strings using SQL. Each of the methods are compared and contrasted here.
http://www.sqlperformance.com/2012/07/t-sql-queries/split-strings
If your row count is minimal (under 50k let's say) and it's going to be a one time operation than pick the easiest way and don't worry too much about all the performance numbers.
If you have a ton of rows or this is an ETL process that will run all the time then you'll really want to pay attention to that stuff.
A simple solution using cursors to build temporary tables. This has the limitation of making all columns VARCHAR and would be slow for large amounts of data.
--** Set up example data
DECLARE #Source TABLE (ID INT, Name VARCHAR(50), [text] VARCHAR(200));
INSERT INTO #Source
(ID, Name, [text])
VALUES (1, 'SID,DOB', '123,12/01/1990')
, (2, 'City,State,Zip', 'NewYork,NewYork,01234')
, (3, 'SID,DOB', '456,12/21/1990');
--** Declare variables
DECLARE #Name VARCHAR(200) = '';
DECLARE #Text VARCHAR(1000) = '';
DECLARE #SQL VARCHAR(MAX);
--** Set up cursor for the tables
DECLARE cursor_table CURSOR FAST_FORWARD READ_ONLY FOR
SELECT s.Name
FROM #Source AS s
GROUP BY Name;
OPEN cursor_table
FETCH NEXT FROM cursor_table INTO #Name;
WHILE ##FETCH_STATUS = 0
BEGIN
--** Dynamically create a temp table with the specified columns
SET #SQL = 'CREATE TABLE ##Table (' + REPLACE(#Name, ',', ' VARCHAR(50),') + ' VARCHAR(50));';
EXEC(#SQL);
--** Set up cursor to insert the rows
DECLARE row_cursor CURSOR FAST_FORWARD READ_ONLY FOR
SELECT s.Text
FROM #Source AS s
WHERE Name = #Name;
OPEN row_cursor;
FETCH NEXT FROM row_cursor INTO #Text;
WHILE ##FETCH_STATUS = 0
BEGIN
--** Dynamically insert the row
SELECT #SQL = 'INSERT INTO ##Table VALUES (''' + REPLACE(#Text, ',', ''',''') + ''');';
EXEC(#SQL);
FETCH NEXT FROM row_cursor INTO #Text;
END
--** Display the table
SELECT *
FROM ##Table;
--** Housekeeping
CLOSE row_cursor;
DEALLOCATE row_cursor;
DROP TABLE ##Table;
FETCH NEXT FROM cursor_table INTO #Name;
END
CLOSE cursor_table;
DEALLOCATE cursor_table;
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