INSERT INTO Table2(Id, Name) SELECT Id, Name FROM Table1 但是,在我的情况下,可能存在重复的ID Table2(在我的情况下,它只是“ 1”),我不想再次复制该ID ,因为这会引发错误。 我可以这样写: IF NOT EXISTS(SELECT 1 FROM Table2 WHERE Id=1) INSERT INTO Table2 (Id, name) SELECT Id, name FR...
sqlserver 判断是否存在,如果存在就update,不存在就insert if not exists(SELECT 1 from pr_equipmentFacility eq inner join pr_equipmentFacilityEx ex on eq.equipmentFacilityID = ex.equipmentFacilityID where eq.equipmentFacilityCode='对应编码') INSERT into pr_equipmentFacilityEx (equipmentFacilityID,brand,e...
**使用insert ignore if not exist,**具体格式为: INSERT IGNORE INTO 表名('字段') SELECT '字段需要插入时的数据' FROM dual WHERE NOT EXISTS (SELECT * FROM '表名' WHERE '需要被限制不重复的字段' = '被限制字段本次插入的数据') 1. 2. 3. 4. 比如mybatis使用时为: INSERT IGNORE INTO user...
INSERT INTO books (name) SELECT 'Songxingzhu' WHERE NOT EXISTS (SELECT id FROM books WHERE id = 1) 三、Sqlserver中: SqlServer中需要另一种写法: IF NOT EXISTS (SELECT id FROMbooksWHERE id = 1)INSERT INTO books (name) SELECT 'Songxingzhu'...
IF NOT EXISTS ( SELECT name FROM sys.databases WHERE name = N'TutorialDB' ) CREATE DATABASE [TutorialDB] GO USE [TutorialDB] -- Create a new table called 'Customers' in schema 'dbo' -- Drop the table if it already exists IF OBJECT_ID('dbo.Customers', 'U') IS NOT NULL ...
1、方法一 IF NOT EXISTS(SELECT * FROM TABLE_NAME WHERE FILED1 = 1 ) THEN INSERT INTO TABLE_NAME VALUES(1 2、将要插入的数据先写入临时表，然后用 INSERT INTO TABLE_NAME SELECT * FROM #TEMP_TABLE A LEFT JOIN TABLE_NAME ON A.FILED1 = B.FIELD1 WHERE B.FILED1 IS NULL ...
如果存在,则ELSE with INSERT、SQL Server ELSE with INSERT 是一种在 SQL Server 数据库中使用的语法结构,用于在特定条件不满足时执行插入操作。 具体来说,ELSE with INSERT 语法结构通常与 IF 语句一起使用。IF 语句用于根据条件执行不同的操作,而 ELSE with INSERT 则用于在 IF 条件不满足时执行插入操作。
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Bulk insert into local table from Linked Server table? BULK INSERT into specific columns? Bulk Insert issue with pipe field terminator Bulk Insert limitation? Bulk insert operation with checking if record exists Bulk Insert Row Terminator issues Bulk Insert skipping rows bulk insert to one column ta...
Openquery select into和insert into是SQL Server 2016中的两种不同的数据插入方式。 Openquery select into: 概念:Openquery select into是一种将远程服务器上的数据查询结果插入到本地表中的方法。 分类:属于分布式查询和数据导入的范畴。 优势:可以方便地从远程服务器获取数据并将其插入到本地表...