What is Materialized View in SQL?


 Materialized View in SQL

Materialized views are schema objects that can be used to summarize, precompute, replicate, and distribute data. E.g. to construct a data warehouse.

A materialized view provides indirect access to table data by storing the results of a query in a separate schema object. Unlike an ordinary view, which does not take up any storage space or contain any data.

The existence of a materialized view is transparent to SQL, but when used for query rewrites will improve the performance of SQL execution.

Materialized views allow you to maintain copies of remote data on your local node. These copies are read-only.

Syntax of Primary Key Materialized View:

CREATE MATERIALIZED VIEW mv_emp_pk
REFRESH FAST START WITH SYSDATE
NEXT  SYSDATE + 1/48
WITH PRIMARY KEY
AS SELECT * FROM emp@remote_db;

When you create a materialized view using the FAST option you will need to create a view log on the master tables(s).

COMMENTS

Name

Advance Table In OAF,1,AOL Concepts,18,AP Holds,1,Apps Initialization,1,Blanket Purchase Orders,1,Blanket Releases,1,Careers,9,Common Errors and Solutions,2,Concurrent Programs,10,Contract Purchase Orders,1,Corporate Culture,3,Corporate Ladder,3,Customer Interface,3,Customization,1,De-Normalization,1,EAM,1,EBS Tutorials,10,Education,16,Emterprise Asset Management,1,English,1,Enterprise Asset Management,1,Entrepreneur,1,Error Fixes,1,Executables,2,Extension,1,fnd_user,1,FNDLOAD,1,Global Agreements,1,Guest Posts,7,Handy Scripts,63,Health Tips,1,Important Apps Queries,1,Infographic,3,Interview Preparation,57,Interview Q/A,57,Inventory Org ID,1,Iproc,4,Iprocurement,4,IT,3,jDeveloper,1,Job Search,1,Key Tables In Oracle Apps,5,Learning English,1,MDS,1,Metadata Tables,2,Multi Org Architecture,2,Normalization,1,O2C,1,OAF Interview,49,OAF Personalization,1,OAF Tutorials,52,Operating Unit,1,Oracle Alerts,1,Oracle AP,11,Oracle APIs,4,Oracle Application Object Library,19,Oracle Applications,10,Oracle Apps,2,Oracle Apps Interviews,29,Oracle Apps Tips,8,Oracle Apps Tutorials,97,Oracle AR,18,Oracle Assets,2,Oracle Dabase Structure,2,Oracle Database Architecture,2,Oracle Database Key Tables,3,Oracle EAM,2,Oracle EBS,5,Oracle Financials,2,Oracle Forms And Reports,17,Oracle Forms Interview Questions,6,Oracle Forms Tutorials,6,Oracle GL,4,Oracle Holds,1,Oracle HRMS,10,Oracle Human Resources,1,Oracle Inventory,4,Oracle Payables,1,Oracle Payroll,1,Oracle POTutorials,1,Oracle Purchasing,7,Oracle Reports Interview,9,Oracle Reports Tutorials,3,Oracle System Administrator,4,Oracle Workflow,3,Order Management,2,Organization ID,3,Organizations,3,Performance Tuning,2,Personalization,1,PL/SQL Block,1,PL/SQL Interview Questions,11,PL/SQL Scripts,44,PL/SQL Tutorials,53,Planned Purchase Orders,1,PO,1,PO Action History,1,PO_ACTION_HISTORY,1,POracle Purchasing,1,PR,1,Procedures And Functions,2,Profile Options,2,Purchase Orders,1,Purchase Requisition,2,Receipts,1,Request Groups,1,Responsibility,1,Shell Script,1,SOA Tutorials,4,Social Media,1,Software Industry,2,Software Tools,1,SQL And PL/SQL Interview,38,SQL Interview,51,SQL Scripts,38,SQL Tutorials,43,Standard Purchase Orders,1,Troubleshooting,1,Unexpected error,1,Unix/Linux Commands,3,User,1,Value Sets,1,Weblogic,1,XML Publisher,3,
ltr
item
Oracle Apps Guy: What is Materialized View in SQL?
What is Materialized View in SQL?
Oracle Apps Guy
http://www.oracleappsguy.com/2011/04/what-is-materialized-view-in-sql.html
http://www.oracleappsguy.com/
http://www.oracleappsguy.com/
http://www.oracleappsguy.com/2011/04/what-is-materialized-view-in-sql.html
true
4186973960539901882
UTF-8
Loaded All Posts Not found any posts VIEW ALL Readmore Reply Cancel reply Delete By Home PAGES POSTS View All RECOMMENDED FOR YOU LABEL ARCHIVE SEARCH ALL POSTS Not found any post match with your request Back Home Sunday Monday Tuesday Wednesday Thursday Friday Saturday Sun Mon Tue Wed Thu Fri Sat January February March April May June July August September October November December Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec just now 1 minute ago $$1$$ minutes ago 1 hour ago $$1$$ hours ago Yesterday $$1$$ days ago $$1$$ weeks ago more than 5 weeks ago Followers Follow THIS CONTENT IS PREMIUM Please share to unlock Copy All Code Select All Code All codes were copied to your clipboard Can not copy the codes / texts, please press [CTRL]+[C] (or CMD+C with Mac) to copy