SalClient Single SalClient ClientCode System.String true false 50 ProjectCode System.String false true 50 ClientName System.String false true 100 Select select * from SalClient where ClientCode=@ClientCode Text @ClientCode ClientCode VarChar SelectAll select * from SalClient Text Insert Insert into SalClient ( ClientCode, ProjectCode, ClientName ) values ( @ClientCode, @ProjectCode, @ClientName ) Text @ClientCode ClientCode VarChar @ProjectCode ProjectCode VarChar @ClientName ClientName VarChar Update Update SalClient set ProjectCode=@ProjectCode,ClientName=@ClientName where ClientCode=@ClientCode Text @ClientCode ClientCode VarChar @ProjectCode ProjectCode VarChar @ClientName ClientName VarChar Delete Delete from SalClient where ClientCode=@ClientCode Text @ClientCode ClientCode VarChar