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...
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 Table...
MySQL在READ-COMMITTED隔离级别下，出现了insert阻塞update的情况，但同样的情况下，Oracle的insert则不会阻...
若是订单生成的消息,那么推送来的id在table里面是没有的,就应该执行insert操作 若不是订单生成的消息,则执行更新 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';ELSEINSER...
Derek Dieter 的例子,如果存在:IF NOT EXISTS (SELECT 1 FROM customer_totals WHERE cust_id = @cust_id)BEGININSERT INTO customer_totals(cust_id,order_amt)SELECTcust_id = @cust_id,order_amt = @order_amtENDELSEUPDATE customerSET order_amt = order_amt + @order_amtWHERE cust_id = @cust_id...
IF EXISTS (SELECT 1 FROM 表名 WHERE 条件)UPDATE 表名 SET 字段=值 WHERE 条件ELSEINSERT INTO 表名(字段) VALUES(值)真实使用举例:if exists(select 1 from [UserRules] where UserI
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_...
CREATE PROCEDURE UpdateOrInsertData @id INT, @value VARCHAR(50) AS BEGIN IF EXISTS (SELECT * FROM YourTable WHERE id = @id) BEGIN -- 已有值存在,执行更新操作 UPDATE YourTable SET value = @value WHERE id = @id END ELSE BEGIN -- 不存在值,执行插入操作 INSERT IN...
IF (uuid == values.uuid) do updated ELSE IF (name == values.name AND subcustomer == values.subcustomer) do updated ELSE do insert 我不知道如何用批量插入来实现这一点?发布于 2 月前 ✅ 最佳回答: 我不知道如何在INSERT ... ON CONFLICT DO UPDATE ...语句中完成所有操作。当uuid值不为...
INSERTINTOtable(SELECTid,'hisname'asnameFROMtableWHEREid>=3)ONDUPLICATEKEYUPDATEname=VALUES(name); 这种方法还可以用来批量执行UPDATE操作(因为单条UPDATE语句只能执行一种update操作) 方法二: 创建存储过程 CREATEPROCEDUREname()ifexists(select1from表whereID=@ID)beginUPDATE表SETXX=XXWHEREID=@IDendelsebegin...