In Percona’s white paper “Performance at Scale: Keeping Your Database on Its Toes,” we take a high-level approach to what you need to think about when planning for database scalability.
"I have a procedure like the following, but it doesn't work: . solution that doesn't work not included because we already have the solution below . (please focus on Question 1 and 2 above) I want to have the field as variable to pass it through a different field. Which part of the is wrong?"
use northwind go Create Procedure GetFieldPath @FieldName varchar(10), @ReturnField varchar(10) As Declare @lcSQL varchar(300) Set @lcSQL ='Select @MyReturnField = ' + @FieldName +' From Customers' Exec sp_executesql @lcSQL, N'@MyReturnField varchar(10) output', @MyReturnField = @ReturnField output Select @ReturnField
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