Question

Possible Duplicate:
using dynamic IN clause in MSSQL

I have one SQL statement which includes parameter such as @StartRow, @StartEnd, @CategoryIds.

SELECT * FROM StackOverFlow
WHERE
StartRow = @StartRow
AND StartEnd = @StartEnd
AND CategoryId IN (@CategoryIds)

When I set the parameters like below:

DECLARE  @StartRow INT = 1;
DECLARE  @StartRow INT = 10;
DECLARE  @CategoryId NVARCHAR(50);
set @CategoryId ='124,125'

The failed message is:

Conversion failed when converting the nvarchar value ‘124,125’ to data
type int.

When I manually set the SQL where statement like below:

WHERE
StartRow = @StartRow
AND StartEnd = @StartEnd
AND CategoryId IN (124, 125)

It works.

How can I solve that converting problem?

Answer 1

You need to use dynamic SQL for this. So you would write

DECLARE  @StartRow INT = 1;
DECLARE  @StartRow INT = 10;
DECLARE @CatogoryIds NVARCHAR(50);
SET @CatogoryIds = N'124, 125';
DECLARE @SQL NVARCHAR(MAX);
SET @SQL = N'
    SELECT * 
    FROM StackOverFlow
    WHERE
        StartRow = ' + @StartRow + 
      N' AND StartEnd = ' + @StartEnd + 
      N' AND CategoryId IN (' + @CategoryIds + N');';
EXEC(@SQL);
GO

I hope this helps.