对一个物化视图进行快速刷新！

试着执行快速刷新：

SQL> exec dbms_mview.refresh('SERVICE_ITEMS','F');

BEGIN dbms_mview.refresh('SERVICE_ITEMS','F'); END;

*

第 1 行出现错误:

ORA-23413: table "SGREPORTS"."SERVICE_ITEMS" does not have a materialized view log

ORA-06512: at "SYS.DBMS_SNAPSHOT", line 2255

ORA-06512: at "SYS.DBMS_SNAPSHOT", line 2461

ORA-06512: at "SYS.DBMS_SNAPSHOT", line 2430

ORA-06512: at line 1

试着完全刷新：

SQL> exec dbms_mview.refresh('SERVICE_ITEMS','C');

PL/SQL 过程已成功完成。

在主上建立物化日志：

先看一下表的变化频率！然后建立日志！

SQL> select count(*) from SERVICE_ITEMS;

COUNT(*)

----------

90908

SQL> /

COUNT(*)

----------

90908

变化不大，应该使用快速刷新！

SQL> create materialized view log on SERVICE_ITEMS;

Materialized view log created.

再试！

SQL> exec dbms_mview.refresh('SERVICE_ITEMS','F');

BEGIN dbms_mview.refresh('SERVICE_ITEMS','F'); END;

*

第 1 行出现错误:

ORA-12034: materialized view log on "SGREPORTS"."SERVICE_ITEMS" younger than last refresh

ORA-06512: at "SYS.DBMS_SNAPSHOT", line 2255

ORA-06512: at "SYS.DBMS_SNAPSHOT", line 2461

ORA-06512: at "SYS.DBMS_SNAPSHOT", line 2430

ORA-06512: at line 1

这个错误可以使用完全刷新来修正！

SQL> exec dbms_mview.refresh('SERVICE_ITEMS','C');

PL/SQL 过程已成功完成。

再试快速刷新！

SQL> exec dbms_mview.refresh('SERVICE_ITEMS','F');

BEGIN dbms_mview.refresh('SERVICE_ITEMS','F'); END;

*

第 1 行出现错误:

ORA-12018: following error encountered during code generation for "SGREPORTS"."SERVICE_ITEMS"

ORA-00942: table or view does not exist

ORA-06512: at "SYS.DBMS_SNAPSHOT", line 2255

ORA-06512: at "SYS.DBMS_SNAPSHOT", line 2461

ORA-06512: at "SYS.DBMS_SNAPSHOT", line 2430

ORA-06512: at line 1

SQL> commit;

提交完成。

这个错误是由于没有在主站点上找到物化日志！

原因是刷新的用户没有访问物化日志的权限，在主站上做相应授权：

SQL> GRANT SELECT ON MLOG$_SERVICE_ITEMS to smcrep;

Grant succeeded.

再试快速刷新！

SQL> exec dbms_mview.refresh('SERVICE_ITEMS','F');

PL/SQL 过程已成功完成。

SQL>