The code's not really ready to be used in dev or QA either.
NO reason to search the same table multiple times, esp. not once per column.
Instead, should do a single access to each table for all relevant columns in one query.
SQL DBA,SQL Server MVP(07, 08, 09) "It's a dog-eat-dog world, and I'm wearing Milk-Bone underwear." "Norm", on "Cheers". Also from "Cheers", from "Carla": "You need to know 3 things about Tortelli men: Tortelli men draw women like flies; Tortelli men treat women like flies; Tortelli men's brains are in their flies".