ExecuteNonQuery returns -1

Question

I have a stored procedure and it returns a value, and I have to execute this SP using ExecuteNonQuery statement. 值，我必须使用ExecuteNonQuery语句执行此SP。 When I execute this, I get -1 as the return value.

I never used SET NOCOUNT ON . How can I get the return value? I did not declare the return value as OUTPUT -- just SELECT @VARIABLENAME . How can I get the value using ExecuteNonQuery ?

Answer 1

ExecuteNonQuery is used to execute queries that return only the number of rows affected (though output parameters can be populated). -1 means that no rows were affected or you have set nocount on.

Use another an API call if you need to read data from the sproc.

Answer 2

If you are only grabbing one value I would use the ExecuteScalar command if you are in a .Net Langauge. I know that Java and the like has an equivalent.

http://msdn.microsoft.com/en-us/ibrary/system.data.sqlclient.sqlcommand.executescalar.aspx

ExecuteNonQuery can get return data, if you have Output paramaters in your SP. This article explains how.

http://msdn.microsoft.com/en-us/library/80x06z3b(v=VS.71).aspx

Though again if you are just returning a string ExecuteScalar is simpler to use.