SQLServerCentral.com Content tagged T-SQL, ORhttp://www.sqlservercentral.com/Content tagged T-SQL, OR posted on SQLServerCentral.comen-us360sjones@sqlservercentral.com (Steve Jones)Whether to use UNION or OR in SQL Server QueriesRecently I came across with an article on DB2 about using Union instead of OR. So I thought of carrying out a research on SQL Server on what scenarios UNION is optimal in and which scenarios OR would be best. I will analyze this with a few scenarios using samples taken from the AdventureWorks database

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