怎么理解物化视图呢,先随意拿一个建物化视图的例子看一下. create materialized view EBS_ACCOUNTS_HIERARCHY_MV refresh complete on demand as select v.flex_value, v.description, case when (sysdate between nvl(v.start_date_active, sysdate) and nvl(v.end_date_active, sysdate)) and (v…
一.创建远程物化视图日志 源端: CREATE MATERIALIZED VIEW LOG ON tozwdb.test tablespace tozwdb_data WITH ROWID; 二.付权限 目标库 Create user tozwdb identified by tozwdb_dev;Grant create session to tozwdb;Grant resource to tozwdb;Grant connect to tozwdb;Grant unlimited tabl…
--使用 on commit 的方式建立物化视图 create materialized view emp_dept refresh on commit as select t.*,d.dname from emp t , dept d where t.deptno = d.deptno; --使用 on demand的方式建立物化视图 create materialized view mv_name refresh force on demand start with sysdate ,'dd…