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语法如下: sql CREATE MATERIALIZED VIE...
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 ...]) ...
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
When you create a materialized view, Oracle Database creates one internal table and at least one index, and may create one view, all in the schema of the materialized view. Oracle Database uses these objects to maintain the materialized view data. You must have the privileges necessary to cr...
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 LOG ON [schema.] table [parallel_clause] [with_clause] [mv_log_purge_clause]; parallel_clause: NOPARALLEL | PARALLEL integer with_clause: WITH [ {PRIMARY KEY | ROWID | SEQUENCE} [ { ,...
Oracle Create or Replace Materialized Views A materialized view in Oracle is a database object that contains the results of a query. It is a replica of a target master table or master materialized view, which isrefreshed periodically to keep the data consistent. By storing the computed results...
The distribution key for the materialized view, in the format DISTKEY ( distkey_identifier ). For more information, see Designating distribution styles. The sort key for the materialized view, in the format SORTKEY ( column_name [, ...] ). For more information, see Sort keys. AS query A...
Oracle Database Cloud Schema Service - Version N/A and later: ORA-01031: Insufficient Privileges When Create a Mview in Different Schema
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
How to create Materialized view in SQL Server Hi , How to create Materialized view in SQL Server Regards, tgvr Show More Reporting Services Like 0 Reply View Full Discussion (1 Replies) olafhelper Bronze ContributorOct 11, 2023 Oracle has "Materilized Views", MS SQL Server don't.You ...