The "CREATE OR REPLACE MATERIALIZED VIEW" statement in Oracle allows you to create or replace an existing materialized view. In this article, we will discuss the steps involved in creating or replacing a materialized view in Oracle. Step 1: Understand the Purpose and Requirements Before creating ...
Oracle中的物化视图(Materialized View) Oracle中的物化视图(Materialized View)是一种特殊的视图,它存储了查询结果的数据,而不是像普通视图那样仅存储查询的定义。物化视图允许用户对大型数据集进行预先计算和存储,从而提高了查询性能,尤其是在需要频繁访问相同数据集的情况下。 创建物化视图的基本语法 创建物化视图的基本...
创建物化视图需要有 CREATE TABLE 权限。更多有关 OceanBase 数据库权限的详细介绍,请参见 Oracle 模式下的权限分类。语法CREATE MATERIALIZED VIEW view_name [column_list] [table_option_list] [partition_option] [refresh_clause] AS view_select_stmt; column_list: (column_name [, column_name ...]) ...
You can select data from a materialized view as you would from a table or view. In replication environments, the materialized views commonly created are primary key, rowid, object, and subquery materialized views. See Also: Oracle Database Administrator’s Guide for information on the types of...
materialized_view 作成するマテリアライズド・ビューの名前を指定します。名前は、「データベース・オブジェクトのネーミング規則」に指定されている要件を満たしている必要があります。Oracle Databaseは、マテリアライズド・ビュー名に接頭辞または接尾辞を追加して、マテリアライズド・...
Oracle Database - Enterprise Edition - Version 11.2.0.2 and later: Create Materialized View Results in ORA-955 But Drop Materialized View Does Not Succeed Either
CREATE/ALTER/DROP MATERIALIZED VIEW LOG CREATE MATERIALIZED VIEW LOG ON [schema.] tablename [ Physical_Attributes_Clause] [TABLESPACE tablespace] [STORAGE Storage_Clause] Creates a materialized view log, which is a … - Selection from Oracle SQL: the Es
来自专栏 · Oracle数据库 create or replace procedure JS_DATA_DEAL is begin execute immediate 'drop materialized view M_线段'; execute immediate 'create materialized view M_线段 refresh force on demand as select t1.线名,t1.行别,t1.MAPINFO_ID ID,t1.里程 里程1,t2.里程 里程2,t1.X X1,t1....
BUILD DEFERRED instructs the server to populate the view at a later time (during a REFRESH operation). create_mv_refresh Include the create_mv_refresh clause to specify when the content of a materialized view is updated. The clause contains the REFRESH keyword followed by COMPLETE and/or ON...
Oracle Database Cloud Schema Service - Version N/A and later: ORA-01031: Insufficient Privileges When Create a Mview in Different Schema