OACachet Single OACachet OACachetCode System.String true false 50 Unit System.String false true 50 ApplyDate System.DateTime false true 8 Reason System.String false true 500 ApplyUser System.String false true 50 Select select * from OACachet where OACachetCode=@OACachetCode Text @OACachetCode OACachetCode VarChar SelectAll select * from OACachet Text Insert Insert into OACachet ( OACachetCode, Unit, ApplyDate, Reason, ApplyUser ) values ( @OACachetCode, @Unit, @ApplyDate, @Reason, @ApplyUser ) Text @OACachetCode OACachetCode VarChar @Unit Unit VarChar @ApplyDate ApplyDate DateTime @Reason Reason VarChar @ApplyUser ApplyUser VarChar Update Update OACachet set Unit=@Unit,ApplyDate=@ApplyDate,Reason=@Reason,ApplyUser=@ApplyUser where OACachetCode=@OACachetCode Text @OACachetCode OACachetCode VarChar @Unit Unit VarChar @ApplyDate ApplyDate DateTime @Reason Reason VarChar @ApplyUser ApplyUser VarChar Delete Delete from OACachet where OACachetCode=@OACachetCode Text @OACachetCode OACachetCode VarChar