EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO---------- ---------- --------- ---------- --------- ---------- -------7876ADAMS CLERK778823-MAY-8711002015:36:04SCOTT@ prod>updateemp1setdeptno=40whereempno=7788;1ro
SQL Access Advisor, using theTUNE_MVIEW procedure, also recommends how to optimize materialized views so that they can be fast refreshable and take advantage of general query rewrite.TheDBMS_ADVISOR package consists of a collection of analysis and advisory functions and procedures callable from any ...
drop materialized view mv_materialized_test; --删除物化视图 1. 物化视图刷新 使用dbms_mview.refresh 手工刷新 EXEC DBMS_MVIEW.REFRESH('mv_emp_rowid'); --完全刷新 EXEC DBMS_MVIEW.REFRESH(LIST => 'mv_emp_rowid',METHOD => 'c'); EXEC DBMS_MVIEW.REFRESH('mv_emp_rowid','C'); --快速...
DBMS_STATSパッケージの詳細は、『Oracle Database PL/SQLパッケージおよびタイプ・リファレンス』を参照してください。 クエリー・リライトに関する問題の診断については、DBMS_MVIEWパッケージのEXPLAIN_MVIEWプロシージャを参照してください。クエリー・リライトの問題の修正については、...
ON DEMAND(默认) 实体化视图在用户需要的时候进行刷新,可以手工通过 DBMS_MVIEW.REFRESH等方法来进行刷新,也可以通过JOB定时进行刷新 ON COMMIT 实体化视图在对基表的DML操作提交的同时进行刷新 START WITH 第一次刷新时间 NEXT 刷新时间间隔 WITH PRIMARY KEY(默认) 生成主键实体化视图,也就是说实体化视图是基于表...
DBMS_REPCAT.CREATE_MVIEW_REPOBJECT ( gname => 'hr_repg', sname => 'hr', oname => 'departments', type => 'SNAPSHOT', min_communication => TRUE); END; / WriteableMaterialized Views A writeablematerialized view is one that is created using the FOR UPDATE clause but is notpart of ...
creatematerializedview[view_name] refresh[fast|complete|force] [ on[commit|demand]| startwith(start_time)next(next_time) ] as {创建物化视图用的查询语句} 案例分析: 本案例架构 1)在test1库上建立db link tnsnames.ora: 1 2 3 4 5 6
Some types of nested materialized views cannot be fast refreshed. UseEXPLAIN_MVIEWto identify those types of materialized views. You can refresh a tree of nested materialized views in the appropriate dependency order by specifying thenested=TRUEparameter with theDBMS_MVIEW.REFRESHparameter. ...
0 rows in set. Elapsed: 0.005 sec. 创建MaterializedView 代码语言:javascript 代码运行次数:0 运行 AI代码解释 CREATE MATERIALIZED VIEW uk_price_paid_from_kafka_consumer_view TO materialized_uk_price_paid_from_kafka AS SELECT splitByChar(' ', postcode) AS p, toUInt32(price_string) AS price,...
create materialized view log on t with sequence ( VAL ), primary key; Materialized view log created. Gotcha - DBMS_REDEFINITION The DBMS_REDEFINITION package has certain restrictions related to materialized view logs. In Oracle 10g these restrictions are: ...