Reputation: 1677
I'm in a tough pickle here, using SSRS and trying to feed a NULL value, with others, from a multi-valued parameter into the stored procedure used for the dataset.
The values the user selects in the multi-value parameter of the report, are fed to a single input parameter in the stored procedure. For example, the multi-value drop down called @Color can feed 'Red','White', and 'Blue' to the stored procedure's '@ColorList' parameter. The stored procedure uses the parameter for SQL statement building functions and gives the result set. I want to add the NULL value to the multi-value parameter in addition to the values, as some records do not have a Color value.
Unfortunately, I don't have permissions to the modify the stored procedure so I can't use the ISNULL(Value,'') work-around or change anything with the 'IN' syntax. The stored procedure is being executed in the report as follows:
EXEC StoredProc
@Name = @Name
@ColorList = @Color
@Color is passed using a JOIN expression
=JOIN(Parameters!Color.Value,",")
Any suggestions?
Upvotes: 2
Views: 5818
Reputation: 72
It sounds like you undertand your situation well: You cannot pass the value of NULL as a parameter, because NULL simply is not a value and has no value. You could pass the string "NULL" as the parameter @color, but you'd probably be better off creating a colorfully-named (shall we say, distinctive?) distinctive variable, such as noColor
just to keep things clear.
Upvotes: 1