CTE(With As)

WITH tabdate(dt) AS (
    SELECT 1
    FROM
        dual
    UNION ALL
    SELECT  dt+1
    FROM
        tabdate
    WHERE
        dt < 10
    )
    SELECT  *
    FROM TabDate   ;  

一、With Table(字段) as （。。。）和后面的Select *  from  Table是一个整体，不允许在select前增加分号；

二、更新：  Update table Set A with tablleB as () select *  from  tablellB    新增：Insert Into A(a,b,c) with TT(aa,bb,cc) as (...)select aa,bb,cc from TT;