Skip to main content

difference between view and materialized view

Image
By
difference  between view & materialized view

 View never come until you call them, but once you created materialized view you needn't call that view if the records are equivalent to the records of your select statements/original table.optimiser never contacts to the basetable, if you have created a materialized view equivalent to basetable.In the view you can write "Create or Replace" but in materialized view u can't.If you want to change materialized view, you have to drop that materialized view and create that again.

view is a logical or virtual table it doesn't have data on its own, but materialized view has a physical structure it stores data in local machine or on its own.materialized view can be refreshed automatically or manually. but in view, if any changes happened in the base tables, we want to reflect the same in the view means view has to issue the select statement again to the database.
Labels:

Comments

Post a Comment

Please avoid link comments

Popular posts from this blog

All songs notation and chords at one place

By
Song : O Saathi Re Film : Mukhathar Ka Sikkandhar Uses : C D D# E G A Note : The numbers at the end of the lines indicate line numbers. Pallavi: O saathi re, tere binaa bhi kya jina, tere binaa bhi kya jina A- C D D#....,D D C DD E...C..CA-...,D D C DD E...CC.......1 Play line 1 again phulon men khaliyon men sapnom ki galiyon men GGG...GAGE.. GGG G A G E.................................................2 tere bina kuchh kahin naa E A G E D C D D#.......................................................................3 tere binaa bhi kya jina, tere binaa bhi kya jina D D C DD E....C..CA-..., D D C DDE....CC.............................4 Charanam: har dhadkan men, pyaas hai teri, sanson men teri khushboo hai CCC C D C A-, CCC C D C A-, DDD DED CD EE.. CCCC......................5 is dharthi se, us ambar tak, meri nazar men tu hi tu hai CCC C D C A-, CCC C D C A-, DDD DED CD EE.. CCCC......................6 pyaar yeh tute naa GGG... GAG D#......E............................
Read more

Song Aankhen Khuli Ho lyrics notation

By
Song : Aankhen Khuli Ho Movie: Mohabbatein Notes used : W=>Western - C D E F G- A- B-/ H=>Hindustani - S R G M P- D- N- ( Here for western, G=G-, A=A-, & B=B- ) ( For hindustani, P=P-, D=D-, & N=N- ) Song I : Aankhen Khuli...Ho Ya.. Ho Bandh W=> A.... C... B..C.. E.. E...... A... A.... H=> D... S... N..S.. G G....... D... D.... Deedaar Un Ka Ho.o.taa Hai.. W=> A...B....A....D.BAG....ADB... H=> D...N...D.....R.NDP...DRN... Kaise Kahoon Main O..Yaaraa W=> B..D.. D....E.... D.....C..C..C... H=> N..R.. R....G... R.....S..S..S..... Ye Pyaar Kaise Hota Hai W=> E...B.....DB...AG...B..AA H=> G...N....RN...DP...N...DD (Tururu ru ru, ru ru rururu ru......) W=> AA...GA...BCE..., B...DB..GA H=> DD...PD...NSG..., N..RN.. PD Song II: Aa.aj He Kisi..par Yaa.ro.on..., Marke De..Khe..gein Hum W=> E....FEDCBABC.D.. D D......., G A B C.... E.......D...D..... H=> G....MGRSNDNS.R. R R......., P D N S.....G........R...R.... Pyaar Ho...
1 comment
Read more

How to create View using Union query from one database to another database in SQL

By
To create View using Union query from one database to another database in SQL you can get hints from below example its very simple your column should be the same type and number of the column should be same to create union query view. USE [TestDB] GO SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO Create VIEW [dbo].[Test_FinancialDimension] AS ( SELECT [key_] ,[NAME] ,[Value] FROM MicrosoftDynamicsAX.dbo.dimattributecompanyinfo union SELECT [key_] ,[NAME] ,[Value] FROM MicrosoftDynamicsAX.dbo.DimAttributeOMCostCenter --union -- SELECT [key_] ,[NAME],[Value] FROM MicrosoftDynamicsAX.dbo.DimAttributeHcmWorker union SELECT [key_] ,[NAME] ,[Value] FROM MicrosoftDynamicsAX.dbo.DIMATTRIBUTEOMDEPARTMENT union SELECT [key_] ,[NAME] ,[Value] FROM MicrosoftDynamicsAX.dbo.DimAttributeOMB...
Post a Comment
Read more