Golgappa.net | Golgappa.org | BagIndia.net | BodyIndia.Com | CabIndia.net | CarsBikes.net | CarsBikes.org | CashIndia.net | ConsumerIndia.net | CookingIndia.net | DataIndia.net | DealIndia.net | EmailIndia.net | FirstTablet.com | FirstTourist.com | ForsaleIndia.net | IndiaBody.Com | IndiaCab.net | IndiaCash.net | IndiaModel.net | KidForum.net | OfficeIndia.net | PaysIndia.com | RestaurantIndia.net | RestaurantsIndia.net | SaleForum.net | SellForum.net | SoldIndia.com | StarIndia.net | TomatoCab.com | TomatoCabs.com | TownIndia.com
Interested to Buy Any Domain ? << Click Here >> for more details...

what is primarykey?what is difference between primary key
and forign key?

Answer Posted / ipsita

Primary key we means a unique and ascending key, which is
the primary, access path for a PF and cannot contain null
values and foreign key the key in the dependent file.

Is This Answer Correct ?    1 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

how can I predict the performance of my cgis?

1038


In Which Specs Arrays, Tables & Constants Are Defined?

1119


i am using non join multiple format my 3 database file is like that pf97 R REC ENAME ETENNO ESTATUS K ENAME pf98 R REC1 ENAME ESAL K ENAME PF99 R REC3 ENAME CRDCARD EID K EID & MY NON JOIN LOGICAL FILE IS ALSO SAME EXCEPT RECORD NAMES BEFORE I TRIED WITH 2 FILES SO ITS SAYS ERROR I.E.(Key field attributes must be same as for previous formats. ) SO I CHANGED KEYFIELD ACCORDING TO PF SO ITS WORKING BUT AFTER ADDING 3 FILES ITS SAYING SAME ERROR . I DONT KNOW I NEW IN AS400 PLLZ HELP ME I HAVE ONE MORE QUE. CANT BE USE DIFFERENT KEYFIELD (NOT ACCORDING TO PF) IN NON JOIN LOGICAL FILE.

1432


What is compiler directive in as400? Give example of compiler directive.?

1011


how you will find an error which is not in the first page of the subfile without using rolldown key?

945


How we will get issues on AS/400 technology ? I mean which issue/Defect Tracking tool is using in all companies when any issue comes? Can anybody explain about the work flow of AS/400 project ? plzzz

1610


In RPG How to read a records from a file without using read opcodes?

1479


can a single screen format occupy a screen area above and below a subfile format ?

1587


what is the use of data structures?

1075


how do you read changed records backward in subfile?

1041


what is the maximum number of files allowed in rpg?

1560


can anybody give the interview questions list of RLU. plz mail me: dinesh_sati07@yahoo.com

2648


how many maximum spaces could be given in o specs?

1033


what is the purpose of data structure?

1659


when do you use f-spec. Continuation line ?

1604