SQLServer中使用索引视图(物化视图)

--创建物化视图，每天晚上22:00:00自动更新

create materialized view
VM_PSNPERSONINFO

refresh force
on demand start with
sysdate next
to_date( concat( to_char( sysdate+1,‘dd-mm-yyyy‘),‘ 22:00:00‘),‘dd-mm-yyyy hh24:mi:ss‘)

as

SELECT dt.personid, c.employeeid,d.unitcode,d.unitname,d.label,

       dt.unitid,dt.startdate,dt.enddate

  FROM
(

         SELECT
DISTINCT b.personnelid personid,SUBSTR (a.effectdate, 1, 10) startdate,

         MIN
(CASE WHEN a.effectdate < b.effectdate THEN
b.effectdate ELSE
N‘9999-99-99‘
END) AS
enddate,

         MIN
(a.adjustresult) unitid

         FROM
psnadjust a LEFT
JOIN psnadjust b

         ON
a.personnelid = b.personnelid

         WHERE
a.adjusttype = ‘2‘
AND b.adjusttype = ‘2‘

         GROUP
BY b.personnelid, a.effectdate

        ) dt

       INNER
JOIN psnaccessioninfo c

           ON
c.personid = dt.personid

       INNER
JOIN orgstdstruct d

           ON
d.unitid = dt.unitid

ORDER BY employeeid, unitcode, startdate;