Company Single Company CompanyCode System.String true false 50 CompanyName System.String false true 200 Select select CompanyCode, CompanyName from Company where CompanyCode=@CompanyCode Text @CompanyCode CompanyCode VarChar SelectAll select CompanyCode, CompanyName from Company Text Insert Insert into Company ( CompanyCode, CompanyName ) values ( @CompanyCode, @CompanyName ) Text @CompanyCode CompanyCode VarChar @CompanyName CompanyName VarChar Update Update Company set CompanyName=@CompanyName where CompanyCode=@CompanyCode Text @CompanyCode CompanyCode VarChar @CompanyName CompanyName VarChar Delete Delete from Company where CompanyCode=@CompanyCode Text @CompanyCode CompanyCode VarChar