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'...
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 ...
将sqlserver表中的数据导出sql语句或生成insert into语句ifObject_id('UspOutputData')is notnulldropPROCEDUREUspOutputData;goCREATEPROCEDUREdbo.UspOutputData @tablename sysnameASBEGINdeclare@columnvarchar(1000)declare@columndatavarchar(1000)declare@sqlvarchar(4000)declare@xtype tinyintdeclare@name sysnamedeclare...
--将sqlserver表中的数据导出sql语句或生成insert into语句 if Object_id('UspOutputData') is not null drop PROCEDURE UspOutputData; go CREATE PROCEDURE dbo.UspOutputData
在 WHERE EXISTS 中:INSERT INTO customer_totals(cust_id,order_amt)SELECT TOP 1 — important since we’re not constraining any recordscust_id = @cust_id,order_amt = @order_amtFROM customer_totals ctWHERE NOT EXISTS — this replaces the if statement(SELECT 1FROM customer_totalsWHERE cust_id...
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...
SQL INSERT INTO 语句 INSERT INTO 语句用于向表中插入新记录。 SQL INSERT INTO 语法 INSERT INTO 语句可以有两种编写形式。 第一种形式无需指定要插入数据的列名，只需提供被插入的值即可： INSERT INTO table_name VALUES (value1,value2,value3,...); 第二种形式需要指定列名及被插入的值： ...