PurchaseContractRela Single PurchaseContractRela PurchaseContractRelaCode System.String true false 50 PurchaseContractCode System.String false true 50 ContractCode System.String false true 50 Select select * from PurchaseContractRela where PurchaseContractRelaCode=@PurchaseContractRelaCode Text @PurchaseContractRelaCode PurchaseContractRelaCode VarChar SelectAll select * from PurchaseContractRela Text Insert Insert into PurchaseContractRela ( PurchaseContractRelaCode, PurchaseContractCode, ContractCode ) values ( @PurchaseContractRelaCode, @PurchaseContractCode, @ContractCode ) Text @PurchaseContractRelaCode PurchaseContractRelaCode VarChar @PurchaseContractCode PurchaseContractCode VarChar @ContractCode ContractCode VarChar Update Update PurchaseContractRela set PurchaseContractCode=@PurchaseContractCode,ContractCode=@ContractCode where PurchaseContractRelaCode=@PurchaseContractRelaCode Text @PurchaseContractRelaCode PurchaseContractRelaCode VarChar @PurchaseContractCode PurchaseContractCode VarChar @ContractCode ContractCode VarChar Delete Delete from PurchaseContractRela where PurchaseContractRelaCode=@PurchaseContractRelaCode Text @PurchaseContractRelaCode PurchaseContractRelaCode VarChar SelectByContractCode select * from PurchaseContractRela where ContractCode=@ContractCode Text @ContractCode ContractCode VarChar SelectByPurchaseContractCode select * from PurchaseContractRela where PurchaseContractCode=@PurchaseContractCode Text @PurchaseContractCode PurchaseContractCode VarChar