如果记录存在就更新,不存在就插入。sql如下: IFEXISTS(SELECT1FROM[Order]WHERETmallOrderID='20180505000193')UPDATE[Order]SET[CustomerRemark]='更新更新'WHERETmallOrderID='20180505000193';ELSEINSERT[Order]( TmallOrderID, CustomerName, CustomerMessage )VALUES('20180505000193','小明摩纳哥','ddddddd'); 资...
IFEXISTS(SELECT1FROM表名WHERE条件)UPDATE表名SET字段=值WHERE条件ELSEINSERTINTO表名(字段)VALUES(值) 真实使用举例: ifexists(select1from[UserRules]whereUserID=@UserID)update[UserRules]set[AttendanceRulesID]=@AttendanceRulesIDwhereUserID=@UserIDelseinsertinto[UserRules](UserID,AttendanceRulesID)Values(@...
你Out了,用下面sql语句可以根据判断进行添加删除和修改,灵活运用让你爽到没有明天 if EXISTS(select * from Order where Id='243320') select * from Order where Id='243318' else select * from Order where Id='243317'
You do an insert with the data and if you've got an existing unique key (which isn't auto-incremented), if it exists, the insert will throw an error.Catch the error and then do an update.OrUse auto-incremented primary key and all inserts will be on a new line.Or...
先判断是否存在，存在就更新 IF EXISTS(SELECT 1 FROM sys_emp a,inserted b join hr_emp_title c on b.empid = c.empid)BEGIN update c set c.title_code = b.title_code from inserted b join hr_emp_title c on b.empid = c.empid END 不存在就插入 ELSE BEGIN insert into hr_...
ifnotexists(select1fromtwhereid=1)insertintot(id,update_time)values(1,getdate())elseupdate tsetupdate_time=getdate()whereid=1或者ifexists(select1fromtwhereid=1)insertintot(id,update_time)values(1,getdate())elseupdate tsetupdate_time=getdate()whereid=1 ...
ifnot exists(select1fromtwhereid=1)insertintot(id,update_time)values(1,getdate())elseupdate tsetupdate_time=getdate()whereid=1或者ifexists(select1fromtwhereid=1)insertintot(id,update_time)values(1,getdate())elseupdate tsetupdate_time=getdate()whereid=1 ...
to be updated if it already exists and inserted if it does not. If we refer to the Books Online documentation, it gives examples that are similar to:IF EXISTS (SELECT * FROM Table1 WHERE Column1='SomeValue') UPDATE Table1 SET (...) WHERE Column1='SomeValue' ELSE INSERT INTO Table1...
IsDelete bit IF EXISTS(SELECT 1 FROM inserted) AND NOT EXISTS(SELECT 1 FROM deleted)SET @IsInsert = 1 ELSE SET @IsInsert = 0 IF EXISTS(SELECT 1 FROM inserted) AND EXISTS(SELECT 1 FROM deleted)SET @IsUpdate = 1 ELSE SET @IsUpdate = 0 IF NOT EXISTS(SELECT 1 FROM ...
不单MSSQL，包括其他关系数据库在内都不允许单独一条SQL语句内同时更新（Update记录和追加（Insert)记录，但是使用T-SQL在存储过程或自定义函数里等可以使用IF流程，根据不同的条件执行不同的操作。例如：CREATE PROCEDURE myPro1 (@TaskID int) ASif exists(select 1 from paiche where TaskID=@Task...