I have a table UserAliases (UserId, Alias) with multiple aliases per user. I need to query it and return all aliases for a given user, the trick is to return them all in one column.
Example:
UserId/Alias
1/MrX
1/MrY
1/MrA
2/Abc
2/Xyz
I want the query result in the following format:
UserId/Alias
1/ MrX, MrY, MrA
2/ Abc, Xyz
Thank you.
I'm using SQL Server 2005.
p.s. actual T-SQL query would be appreciated :)
You can use a function with COALESCE.
CREATE FUNCTION [dbo].[GetAliasesById]
(
#userID int
)
RETURNS varchar(max)
AS
BEGIN
declare #output varchar(max)
select #output = COALESCE(#output + ', ', '') + alias
from UserAliases
where userid = #userID
return #output
END
GO
SELECT UserID, dbo.GetAliasesByID(UserID)
FROM UserAliases
GROUP BY UserID
GO
Well... I see that an answer was already accepted... but I think you should see another solutions anyway:
/* EXAMPLE */
DECLARE #UserAliases TABLE(UserId INT , Alias VARCHAR(10))
INSERT INTO #UserAliases (UserId,Alias) SELECT 1,'MrX'
UNION ALL SELECT 1,'MrY' UNION ALL SELECT 1,'MrA'
UNION ALL SELECT 2,'Abc' UNION ALL SELECT 2,'Xyz'
/* QUERY */
;WITH tmp AS ( SELECT DISTINCT UserId FROM #UserAliases )
SELECT
LEFT(tmp.UserId, 10) +
'/ ' +
STUFF(
( SELECT ', '+Alias
FROM #UserAliases
WHERE UserId = tmp.UserId
FOR XML PATH('')
)
, 1, 2, ''
) AS [UserId/Alias]
FROM tmp
/* -- OUTPUT
UserId/Alias
1/ MrX, MrY, MrA
2/ Abc, Xyz
*/
DECLARE #Str varchar(500)
SELECT #Str=COALESCE(#Str,'') + CAST(ID as varchar(10)) + ','
FROM dbo.fcUser
SELECT #Str
group_concat() sounds like what you're looking for.
http://dev.mysql.com/doc/refman/5.0/en/group-by-functions.html#function_group-concat
since you're on mssql, i just googled "group_concat mssql" and found a bunch of hits to recreate group_concat functionality. here's one of the hits i found:
http://www.stevenmapes.com/index.php?/archives/23-Recreating-MySQL-GROUP_CONCAT-In-MSSQL-Cross-Tab-Query.html
You can either loop through the rows with a cursor and append to a field in a temp table, or you could use the COALESCE function to concatenate the fields.
Sorry, read the question wrong the first time. You can do something like this:
declare #result varchar(max)
--must "initialize" result for this to work
select #result = ''
select #result = #result + alias
FROM aliases
WHERE username='Bob'
Related
I have a table which has a column in which I am storing a comma separated text with single quotes for each of the comma separated values. These values are employee IDs. This is how it looks
Now, I have a SQL query wherein I need to put the value from this column into a SQL IN operator. Something like this:
select *
from EMPLOYEE_MASTER
where EMPLOYEEID IN (select CM_CONFIG_VALUE
from ADL_CONFIG_MAST_T
where CM_CONFIG_KEY like 'ATT_BIOMETRIC_OU_ID'
)
But this, does not work, the query when executed returns 0 rows whereas if I execute the query normally like below, it works.
select *
from EMPLOYEE_MASTER
where EMPLOYEEID IN('9F3DD4B791554DDE','C9B90D62851D43AB','828CB9E6204B4DDC')
Please suggest what I should do here. I have tried using substring to remove the first and the last character as well assuming that single quotes might be the issue, but that does not work either.
select * from EMPLOYEE_MASTER where EMPLOYEEID IN(select EMPLOYEEID from ADL_CONFIG_MAST_T where CM_CONFIG_KEY like 'ATT_BIOMETRIC_OU_ID')
column should be same in where COLUMNNAME IN (select COLUMNNMAE from tablename)
You can create a temp varible and then use exec command to get the desired result.
declare #temp varchar(200)
select #temp=CM_CONFIG_VALUE
from ADL_CONFIG_MAST_T
where CM_CONFIG_KEY like 'ATT_BIOMETRIC_OU_ID'
exec('select *
from EMPLOYEE_MASTER
where EMPLOYEEID IN (' + #temp + ')')
Try This:
DECLARE #ID VARCHAR(500);
DECLARE #Number VARCHAR(500);
DECLARE #comma CHAR;
SET #comma = ','
SET #ID = (select CM_CONFIG_VALUE
from ADL_CONFIG_MAST_T
where CM_CONFIG_KEY like %ATT_BIOMETRIC_OU_ID% + #comma);
Create table #temp (EMPLOYEEID varchar(500))
WHILE CHARINDEX(#comma, #ID) > 0
BEGIN
SET #Number = SUBSTRING(#ID, 0, CHARINDEX(#comma, #ID))
SET #ID = SUBSTRING(#ID, CHARINDEX(#comma, #ID) + 1, LEN(#ID))
Insert into #temp
select #Number
END
select *
from EMPLOYEE_MASTER
where EMPLOYEEID IN(select EMPLOYEEID from #temp)
The reason you are not getting it in your query is because your inner query returns only one row. So your query searches for '9F3DD4B791554DDE','C9B90D62851D43AB','828CB9E6204B4DDC' as as single record.
If your compatibility level is greater than or equal to 130 you can use STRING_SPLIT() function. Then your query would be
SELECT *
FROM EMPLOYEE_MASTER
WHERE EMPLOYEEID IN
(SELECT value AS empid
FROM ADL_CONFIG_MAST_T CROSS APPLY string_split(CM_CONFIG_VALUE, ',' )
WHERE CM_CONFIG_KEY LIKE 'ATT_BIOMETRIC_OU_ID' )
What this actually does is, it splits the CM_CONFIG_VALUE with ',' and returns them as rows. This is the value column I have referred. Then you use them with the IN clause.
Hope this helps!
Direct IN condition will not work here. You have split your string before searching. You can do that with XML options in SQL SERVER 2014
SELECT *
FROM EMP
WHERE EMPID IN (
SELECT a.c.value('.', 'VARCHAR(1000)')
FROM (
SELECT x = CAST('<a>' +
REPLACE(REPLACE(CM_CONFIG_VALUE , ',', '</a><a>'),'''','') + '</a>' AS XML )
FROM ADL_CONFIG_MAST_T
-- WHERE <your_condition>
) m
CROSS APPLY x.nodes('/a') a(c))
CHECK DEMO HERE
For the version 2016 and above you can use STRING_SPLIT with Compatibility level 130
I generate comma seperated string and add single quite to each numbers
Here is how i do it
DECLARE #IDs NVARCHAR(max)
SELECT #IDs = COALESCE(#IDs +',', '') + ''''
+ Cast([mynos] AS NVARCHAR(255)) + ''''
FROM mytable
WHERE id = 22
If i print variable #IDs then i get below output
'78888','3333','1222'
When i use same variable in this query then query doesnt return any value
SELECT *
FROM table1
WHERE ids IN ( #IDs )
How to fix this?
It doesn't work as your query is effectively doing this:
SELECT *
FROM TABLE
WHERE Ids IN ('''78888'',''3333',''1222''');
Which would also be equivalent to:
SELECT *
FROM TABLE
WHERE Ids = '''78888'',''3333',''1222''';
If you want to do the query as you have done, you'll need to split your delomited data out again. As you're using SQL Server 2012, you can't make use of STRING_SPLIT, so you'll need to a different one; such as Jeff Moden's DelimitedSplit8K. Then you can do:
SELECT *
FROM TABLE
WHERE IDs IN (SELECT items
FROM dbo.DelimitedSplit8K (#IDs,','));
However, why are you not simply doing...
SELECT *
FROM TABLE T
WHERE EXISTS (SELECT 1
FROM myTable mT
WHERE mT.Id = 22
AND mT.myNos = T.Ids);
You can use dynamic query #id is string variable not multi-value argument
DECLARE #IDs nVARCHAR(MAX)
SELECT #IDs = COALESCE(#IDs +',' ,'') + '''' + CAST([myNos] AS nVARCHAR(255)) + ''''
FROM myTable WHERE Id = 22
DECLARE #query nVARCHAR(MAX)
SET #query = "Select * from table1 where Ids in ("+#IDs+")"
EXECUTE sp_executesql #query
I tried below and it worked
select * from table1 where id in (select mynos from mytable where id = 22)
Thanks to #Larnu for giving me idea
I have a problem and can't solve it. Furthermore I can't find an answer anywhere in the internet.
Simplified I have a big table with coloumns, where values to products with an ID are stored by year:
year
id
value
In my stored procedure the attributes for getting information are:
#year
#id
If you want to get information about more than one product, you can use a comma-seperated list of product-ids like ('654654,543543,987987').
My TSQL should be like this:
select year,
sum(case when id = #id[1] then value),
sum(case when id = #id[2] then value),
[...]
from table myTable
where year = #year
group by year
order by year
What I want to do is iterate throught the comma-seperated ids and for each id, I want to add a new select attribut like this (sum(case when id = #id[x] then value).
Can you help me with this problems? Any suggestions to solve it?!
Thanks for your help!
PIVOT operation could simplify the query.
But, anyway, it seems that the only way to construct such a query is to use dynamic SQL.
DECLARE
#Ids NVARCHAR(MAX),
#stmt NVARCHAR(MAX)
SET #Ids = '1,2'
-- Transform Ids into the format PIVOT understands - with square brackets.
-- Primitive way, to not overcomplicate sample.
SET #Ids = '[' + REPLACE(#Ids, ',', '], [') + ']'
PRINT #Ids -- [1], [2]
SET #Stmt = '
SELECT *
FROM Products as p
PIVOT
(
SUM(p.Value)
FOR p.Id IN (' + #Ids + ')
) AS t
ORDER BY Year'
EXEC sp_executesql #Stmt
If you need more accurate way of splitting a comma separated list into an array (table), please see this article for details.
This example is available on SQL Fiddle
As you are using stored procedure, you can use sp_executesql to executed dynimically build SQL statement.
So, you have to iterate over the CSV like this:
DECLARE #List NVARCHAR(MAX) = N'1001,dada,1002,1003'
DECLARE #ProductsID TABLE ( [ID] BIGINT )
DECLARE #XML xml = N'<r><![CDATA[' + REPLACE(#List, ',', ']]></r><r><![CDATA[') + ']]></r>'
INSERT INTO #ProductsID ([ID])
SELECT DISTINCT CAST(Tbl.Col.value('.', 'float') AS bigint)
FROM #xml.nodes('//r') Tbl(Col)
WHERE ISNUMERIC(Tbl.Col.value('.', 'varchar(max)')) = 1
SELECT [ID] FROM #ProductsID
Then, having a table with the ID to dynamically build you SQL statement and execute it.
How can I do this kind of selection:
SELECT *
FROM Street
WHERE StreetName LIKE IN ('% Main Street', 'foo %')
Please don't tell me that I can use OR because these actually comes from a query.
There is no combined LIKE and IN syntax but you can use LIKE to JOIN onto your query as below.
;WITH Query(Result) As
(
SELECT '% Main Street' UNION ALL
SELECT 'foo %'
)
SELECT DISTINCT s.*
FROM Street s
JOIN Query q ON StreetName LIKE q.Result
Or to use your example in the comments
SELECT DISTINCT s.*
FROM Street s
JOIN CarStreets cs ON s.StreetName LIKE cs.name + '%'
WHERE cs.Streets = 'offroad'
You don't have a lot of choices here.
SELECT * FROM Street Where StreetName LIKE '% Main Street' OR StreetName LIKE 'foo %'
If this is part of an existing, more complicated query (which is the impression I'm getting), you could create a table value function that does the checking for you.
SELECT * FROM Street Where StreetName IN (dbo.FindStreetNameFunction('% Main Street|foo %'))
I'd recommend using the simplest solution (the first). If this is nested inside a larger, more complicated query, post it and we'll take a look.
I had a similar conundrum but due to only needing to match the start of a string, I changed my 'like' to SUBSTRING as such:
SELECT *
FROM codes
WHERE SUBSTRING(code, 1, 12) IN ('012316963429', '012315667849')
You can resort to Dynamic SQL and wrapping up all in a stored procedure.
If you get the LIKE IN param in a string as tokens with a certain separator, like
'% Main Street,foo %,Another%Street'
first you need to create a function that receives a list of LIKE "tokens" and returns a table of them.
CREATE FUNCTION [dbo].[SplitList]
(
#list nvarchar(MAX),
#delim nvarchar(5)
)
RETURNS #splitTable table
(
value nvarchar(50)
)
AS BEGIN
While (Charindex(#delim, #list)>0) Begin
Insert Into #splitTable (value)
Select ltrim(rtrim(Substring(#list, 1, Charindex(#delim, #list)-1)))
Set #list = Substring(#list, Charindex(#delim, #list)+len(#delim), len(#list))
End
Insert Into #splitTable (value) Select ltrim(rtrim(#list))
Return
END
Then in the SP you have the following code
declare
#sql nvarchar(MAX),
#subWhere nvarchar(MAX)
#params nvarchar(MAX)
-- prepare the where sub-clause to cover LIKE IN (...)
-- it will actually generate where sub clause StreetName Like option1 or StreetName Like option2 or ...
set #subWhere = STUFF(
(
--(**)
SELECT ' OR StreetName like ''' + value + '''' FROM SplitList('% Main Street,foo %,Another%Street', ',')
FOR XML PATH('')
), 1, 4, '')
-- create the dynamic SQL
set #sql ='select * from [Street]
where
(' + #subWhere + ')
-- and any additional query params here, if needed, like
AND StreetMinHouseNumber = #minHouseNumber
AND StreetNumberOfHouses between (#minNumberOfHouses and #maxNumberOfHouses)'
set #params = ' #minHouseNumber nvarchar(5),
#minNumberOfHouses int,
#minNumberOfHouses int'
EXECUTE sp_executesql #sql, #params,
#minHouseNumber,
#minNumberOfHouses,
#minNumberOfHouses
Of course, if you have your LIKE IN parameters in another table or you gather it through a query, you can replace that in line (**)
I believe I can clarify what he is looking for, but I don't know the answer. I'll use my situation to demonstrate. I have a table with a column called "Query" that holds SQL queries. These queries sometimes contain table names from one of my databases. I need to find all Query rows that contain table names from a particular database. So, I can use the following code to get the table names:
SELECT TABLE_NAME FROM INFORMATION_SCHEMA.TABLES
I'm trying to use a WHERE IN clause to identify the Query rows that contain the table names I'm interested in:
SELECT *
FROM [DatasourceQuery]
WHERE Query IN LIKE
(
SELECT TABLE_NAME FROM INFORMATION_SCHEMA.TABLES
)
I believe the OP is trying to do something like that.
This is my way:
First create a table function:
create function [splitDelimeter](#str nvarchar(max), #delimeter nvarchar(10)='*')
returns #r table(val nvarchar(max))
as
begin
declare #x nvarchar(max)=#str
set #x='<m>'+replace(#x, #delimeter, '</m><m>')+'</m>'
declare #xx xml=cast(#x as xml)
insert #r(val)
SELECT Tbl.Col.value('.', 'nvarchar(max)') id
FROM #xx.nodes('/m') Tbl(Col)
return
end
Then split the search text with your preference delimeter. After that you can do your select with left join as below:
declare #s nvarchar(max)='% Main Street*foo %'
select a.* from street a
left join gen.splitDelimeter(#s, '*') b
on a.streetname like b.val
where val is not null
What I did when solving a similar problem was:
SELECT DISTINCT S.*
FROM Street AS S
JOIN (SELECT value FROM String_Split('% Main Street,foo %', N',')) T
ON S.StreetName LIKE T.value;
Which is functionally similar to Martin's answer but a more direct answer to the question.
Note: DISTINCT is used because you might get multiple matches for a single row.
I am getting the result in SQL Server as
SELECT StudentId FROM Student WHERE condition = xyz
I am getting the output like
StudentId
1236
7656
8990
........
The output parameter of the stored procedure is #studentId string and I want the return statement as
1236, 7656, 8990.
How can I convert the output in the single string?
I am returning single column [ie. StudentId]
Test this:
DECLARE #result NVARCHAR(MAX)
SELECT #result = STUFF(
( SELECT ',' + CONVERT(NVARCHAR(20), StudentId)
FROM Student
WHERE condition = abc
FOR xml path('')
)
, 1
, 1
, '')
DECLARE #result varchar(1000)
SELECT #result = ISNULL(#result, '') + StudentId + ',' FROM Student WHERE condition = xyz
select substring(#result, 0, len(#result) - 1) --trim extra "," at end
Use the COALESCE function:
DECLARE #StudentID VARCHAR(1000)
SELECT #StudentID = COALESCE(#StudentID + ',', '') + StudentID
FROM Student
WHERE StudentID IS NOT NULL and Condition='XYZ'
select #StudentID
Both answers are valid, but don't forget to initializate the value of the variable, by default is NULL and with T-SQL:
NULL + "Any text" => NULL
It's a very common mistake, don't forget it!
Also is good idea to use ISNULL function:
SELECT #result = #result + ISNULL(StudentId + ',', '') FROM Student
Use the CONCAT function to avoid conversion errors:
DECLARE #StudentID VARCHAR(1000)
SELECT #StudentID = CONCAT(COALESCE(#StudentID + ',', ''), StudentID)
FROM Student
WHERE StudentID IS NOT NULL and Condition='XYZ'
select #StudentID
The following is a solution for MySQL (not SQL Server), i couldn't easily find a solution to this on stackoverflow for mysql, so i figured maybe this could help someone...
ref: https://forums.mysql.com/read.php?10,285268,285286#msg-285286
original query...
SELECT StudentId FROM Student WHERE condition = xyz
original result set...
StudentId
1236
7656
8990
new query w/ concat...
SELECT group_concat(concat_ws(',', StudentId) separator '; ')
FROM Student
WHERE condition = xyz
concat string result set...
StudentId
1236; 7656; 8990
note: change the 'separator' to whatever you would like
GLHF!
This one works with NULL Values in Table and doesn't require substring operation at the end. COALESCE is not really well working with NULL values in table (if they will be there).
DECLARE #results VARCHAR(1000) = ''
SELECT #results = #results +
ISNULL(CASE WHEN LEN(#results) = 0 THEN '' ELSE ',' END + [StudentId], '')
FROM Student WHERE condition = xyz
select #results
The answer from brad.v is incorrect! It won't give you a concatenated string.
Here's the correct code, almost like brad.v's but with one important change:
DECLARE #results VarChar(1000)
SELECT #results = CASE
WHEN #results IS NULL THEN CONVERT( VarChar(20), [StudentId])
ELSE #results + ', ' + CONVERT( VarChar(20), [StudentId])
END
FROM Student WHERE condition = abc;
See the difference? :) brad.v please fix your answer, I can't do anything to correct it or comment on it 'cause my reputation here is zero. I guess I can remove mine after you fix yours. Thanks!
Use STRING_AGG:
SELECT STRING_AGG(sub.StudentId, ',') FROM
(select * from dbo.Students where Name = 'Test3') as sub
If you want to use e.g ORDER BY:
SELECT STRING_AGG(sub.StudentId, ',') WITHIN GROUP(Order by StudentId) FROM
(select * from dbo.Students where Name = 'Test3') as sub
or a single select statement...
DECLARE #results VarChar(1000)
SELECT #results = CASE
WHEN #results IS NULL THEN CONVERT( VarChar(20), [StudentId])
ELSE ', ' + CONVERT( VarChar(20), [StudentId])
END
FROM Student WHERE condition = abc;
Assign a value when declaring the variable.
DECLARE #result VARCHAR(1000) ='';
SELECT #result = CAST(StudentId AS VARCHAR) + ',' FROM Student WHERE condition = xyz