A carbocation (/ËkÉËrboÊËkÃ¦taÉªÉn/) is an ion with a positively charged carbon atom.
You can run your package using DTEXEC, and change your connection by passing in a /CONNECTION parameter. Probably save it as a batch so next time you don't need to type the whole thing and just change the datasource as required. You can use the SSIS XML package configuration file. Here is a walk through.
When assigning from a query and the query returns no result, SELECT will not make the assignment and therefore not change the value of the variable. DECLARE @CustomerID NCHAR(5) SET @CustomerID = 'XYZ' SELECT @CustomerID = [CustomerID] FROM [dbo].[Customers] WHERE [CustomerID] = 'ABC' SELECT @CustomerID â- Returns XYZ.