PurchaseContractAssistant Single PurchaseContractAssistant PurchaseContractAssistantCode System.String true false 50 PurchaseContractCode System.String false true 50 WorkTime System.String false true 200 Select select * from PurchaseContractAssistant where PurchaseContractAssistantCode=@PurchaseContractAssistantCode Text @PurchaseContractAssistantCode PurchaseContractAssistantCode VarChar SelectAll select * from PurchaseContractAssistant Text Insert Insert into PurchaseContractAssistant ( PurchaseContractAssistantCode, PurchaseContractCode, WorkTime ) values ( @PurchaseContractAssistantCode, @PurchaseContractCode, @WorkTime ) Text @PurchaseContractAssistantCode PurchaseContractAssistantCode VarChar @PurchaseContractCode PurchaseContractCode VarChar @WorkTime WorkTime VarChar Update Update PurchaseContractAssistant set PurchaseContractCode=@PurchaseContractCode,WorkTime=@WorkTime where PurchaseContractAssistantCode=@PurchaseContractAssistantCode Text @PurchaseContractAssistantCode PurchaseContractAssistantCode VarChar @PurchaseContractCode PurchaseContractCode VarChar @WorkTime WorkTime VarChar Delete Delete from PurchaseContractAssistant where PurchaseContractAssistantCode=@PurchaseContractAssistantCode Text @PurchaseContractAssistantCode PurchaseContractAssistantCode VarChar SelectByPurchaseContractCode select * from PurchaseContractAssistant where PurchaseContractCode=@PurchaseContractCode Text @PurchaseContractCode PurchaseContractCode VarChar