subquery returning multiple values in sql server

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SQL-Server-2008

subquery returning multiple values in sql server is query result when i used where in() claues.

My actual requirement is

I passed a varchar(100) to a stored procedure which have set of numbers separated by comma
Example '110,112,125' and used a function:

SQL

SELECT * from Tbl_Order where orderid in(select dbo.split(@param)

But when @paramis is empty then getting no records. So need to change this to where in(orderid). And I wrote as:

SQL

SELECT * from Tbl_Order where orderid in(case @param when '' then orderid else (select dbo.split(@param))

But getting subquery error.
What is the better solution when passing argument is blank

Posted 15-Jul-13 0:22am

vipinsethumadhavan

Updated 15-Jul-13 0:30am

Maciej Los

v2

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Maciej Los · Answer 1 · 2013-07-15T00:32:00

Solution 1

Have a look here: Using comma separated value parameter strings in SQL IN clauses[^]

Posted 15-Jul-13 0:32am

Maciej Los

Priyanka7777 · Answer 2 · 2013-07-15T00:41:00

Solution 2

Try:

SQL

SELECT * from Tbl_Order where orderid in
(case when @param='' then orderid
else (select dbo.Split(@param)
)end)

Posted 15-Jul-13 0:41am

Priyanka7777

Comments

vipinsethumadhavan 15-Jul-13 7:04am

dbo.Split result is more than one row so getting same error
changed else to select * from dbo.Split(@param)

Raja Sekhar S · Answer 3 · 2013-07-16T01:57:00

Assuming that your Stored Procedure accepts ONE Parameter of type varchar(100)...
now you are passing the parameter to a function..... and the output of the function to the procedure... so if your function Returns more than one value then the Error "sub-query returning multiple values" Will be encountered... Because your stored Procedure accepts one parameter but you are passing more than one parameter..if you can post the function and stored-procedure.... we can help..