小编Dee*_*nga的帖子

我刚刚创建了表DEPT和EMP,如下所示:

create table DEPT
( dept_no number , dept_name varchar(32) , dept_desc varchar(32),
  CONSTRAINT dept_pk Primary Key (dept_no) );

create table EMP
( emp_no number, dept_no number, CONSTRAINT emp_pk Primary Key (emp_no,dept_no));

insert into dept values (10,'it','desc1');
insert into dept values (20,'hr','desc2');

insert into emp values (1,10);
insert into emp values (2,20);

我使用rowid和物化视图在这些表上创建了物化视图日志,如下所示:

create materialized view log on emp with rowid;
create materialized view log on dept with rowid;

create materialized view empdept_mv refresh fast on commit as
select a.rowid …