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
普通租户(Oracle 模式) SQL 语句 DDL CREATE MATERIALIZED VIEW 更新时间:2025-01-17 14:56:41 描述 该语句用来创建物化视图。 物化视图是一种特殊类型的数据库对象,它存储查询结果的副本,并定期刷新(也可以手动刷新)以保持数据的最新状态。物化视图可以包含聚合,连接和子查询等操作,并且可以被索引和分区,以进一步...
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...
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
Creates a materialized view. Syntax CREATEMATERIALIZEDVIEWname[build_clause][create_mv_refresh]ASsubquery wherebuild_clauseis: BUILD {IMMEDIATE|DEFERRED} wherecreate_mv_refreshis: REFRESH[COMPLETE][ON DEMAND] Description CREATE MATERIALIZED VIEW defines a view of a query that is not updated each time...
ALTER MATERIALIZED VIEW LOG scott.emp STORAGE (NEXT 50K);Remove the materialized view log associated with scott's emp table from the database:DROP MATERIALIZED ... Get Oracle SQL: the Essential Reference now with the O’Reilly learning platform. O’Reilly members experience books, live events,...
DROP MATERIALIZED VIEW LOG DROP OUTLINE DROP PROFILE DROP ROLE DROP SEQUENCE DROP SYNONYM DROP TABLE DROP TABLEGROUP DROP TABLESPACE DROP USER DROP VIEW RENAME TRUNCATE TABLE MAJOR 和 MINOR DML DCL DDL 功能 SQL 实践和建议 预留关键字(MySQL 模式) 预留关键字(Oracle 模式) PL 参考 系统视图 配置项...
Oracle Database Cloud Exadata Service - Version N/A and later: Primary Note for MVIEW 'ORA-' error diagnosis. For Materialized View CREATE or REFRESH, DBMS_MVIEW
無効なマテリアライズド・ビューのリフレッシュについては、「ALTER MATERIALIZED VIEW」を参照してください。 マテリアライズド・ビューの概要は、『Oracle Database概要』を参照してください。 INSTEADOF句の詳細は、「CREATE TRIGGER」を参照してください。
ALTER VIEW ALTER VOLUME 呼叫 COMMENT ON CREATE CATALOG CREATE CONNECTION CREATE DATABASE CREATE FUNCTION (SQL) CREATE FUNCTION (外部) 創建地點 CREATE MATERIALIZED VIEW 建立程序 CREATE RECIPIENT CREATE SCHEMA CREATE SERVER CREATE SHARE CREATE STREAMING TABLE CREATE TABLE 數據表屬性和數據表選項 CR...