Make a check(if) for empty string and insert specific SqlDateTime.null valueC#code Copy cmd1.Parameters.Add("@emp_name1", SqlDbType.NVarChar); cmd1.Parameters.Add("@join_date1", SqlDbType.DateTime); code Copy cmd1.Parameters["@emp_name1"].Value = name.Text; ...
首先,请在你的SQL Server数据库中创建如下名为[dbo].[sp_CreateInsertScript]存储过程,其内容如下: --===-- Author: Mark Kang-- Company: www.ginkia.com-- Create date: 2016-03-06-- Description: Generat the insert sql script according to the data in the specified table.-- It does not supp...
SQL 复制 -- Create the table variable. DECLARE @MyTableVar table( LocationID int NOT NULL, CostRate smallmoney NOT NULL, NewCostRate AS CostRate * 1.5, ModifiedDate datetime); -- Insert values into the table variable. INSERT INTO @MyTableVar (LocationID, CostRate, ModifiedDate) SELE...
[pub_id] [char](4) NOT NULL, [hire_date] [datetime] NOT NULL ) ON [PRIMARY] 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 例1、在数据库pubs的authors表上创建3个触发器 Create T...
SQL 複製 -- Create the table variable. DECLARE @MyTableVar table( LocationID int NOT NULL, CostRate smallmoney NOT NULL, NewCostRate AS CostRate * 1.5, ModifiedDate datetime); -- Insert values into the table variable. INSERT INTO @MyTableVar (LocationID, CostRate, ModifiedDate) SELE...
SQL 複製 -- Create the table variable. DECLARE @MyTableVar table( LocationID int NOT NULL, CostRate smallmoney NOT NULL, NewCostRate AS CostRate * 1.5, ModifiedDate datetime); -- Insert values into the table variable. INSERT INTO @MyTableVar (LocationID, CostRate, ModifiedDate) SELE...
DECLARE @UserId varchar(20) ,@CommodityId int,@Amount int,@PayMoney money,@PayWay varchar(20),@OrderTime datetime,@Confirm int,@SendGoods int SELECT @UserId=UserId,@CommodityId=CommodityId,@Amount=Amount,@PayWay=PayWay,@OrderTime=OrderTime,@Confirm=Confirm,@SendGoods=SendGoods FROM inserted ...
DECLARE @MyTableVar table( LocationID int NOT NULL, CostRate smallmoney NOT NULL, NewCostRate AS CostRate * 1.5, ModifiedDate datetime); -- Insert values into the table variable. INSERT INTO @MyTableVar (LocationID, CostRate, ModifiedDate) SELECT LocationID, CostRate, GETDATE() FROM Pr...
DECLARE @MyTableVar table( LocationID int NOT NULL, CostRate smallmoney NOT NULL, NewCostRate AS CostRate * 1.5, ModifiedDate datetime); -- Insert values into the table variable. INSERT INTO @MyTableVar (LocationID, CostRate, ModifiedDate) SELECT LocationID, CostRate, GETDATE() FROM Pr...
1.后触发器（AFTER,FOR）先执⾏对应语句，后执⾏触发器中的语句 2.前触发器并没有真正的执⾏触发语句（insert，update,delete），⽽是执⾏触发后的语句 3.⾏级触发器（FOR EACH ROW）在SQL server 中不存在 商品号为1的库存量：1.后触发器（实现不同表之间的约束）--实现在销售量不...