Partition--使用分区切换来增加修改列的自增属性

使用分区来将非自增表改为自增表

---------------------------------------------------创建测试表TestTable001和TestTable002CREATE TABLE TestTable001
(
    ID INT PRIMARY KEY,
    C1 VARCHAR(200)
)GOCREATE TABLE TestTable002
(
    ID INT IDENTITY PRIMARY KEY,
    C1 VARCHAR(200)
)GO--向测试表TestTable001插入数据INSERT  INTO TestTable001        SELECT  ROW_NUMBER() OVER (ORDER BY object_id) AS RID,
                name        FROM    SYS.all_objectsGO---------------------------------------------------将分区表切换来将TestTable001换入到TestTable002中ALTER TABLE TestTable001

SWITCH PARTITION 1 TO TestTable002--使用RESEED重置自增值DBCC CHECKIDENT('TestTable002',RESEED)--查看当前表中自增值SELECT IDENT_CURRENT('TestTable002')---------------------------------------------------插入测试INSERT INTO TestTable002(C1)SELECT 'Test'--查看上一次插入的自增IDSELECT @@IDENTITY

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