what is primary key,unique key, foreign key? can u teach me
in simple language?

Answer Posted / pinna

primary key is that key that can uniquenly identify the
values

Is This Answer Correct ?    182 Yes 68 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is the difference between data source and database?

543


What is the importance of database partitioning?

610


What advantages does DBMS have over traditional file systems?

591


What is the use of graph database?

548


What is the database url?

550






Hi, I want do a course in DWH Informatica Administrator and Abinito Administrator please tell me some institute in chennai and i am searching for a job,so please help me and my mail id : satty_rh@yahoo.co.in Thanks, Kumar

1575


There are three servers are run by Oracle, MS Access and .Net. What are the procedure fetching the values of two variables from two servers among these?

1700


can u combine pipeline parallelism and partition parallalism? how and whan?

1880


What is the role of tester in discovery(in Checklist)?

1455


Should I store images in database?

576


What are the advantages of using database?

548


how to send multiple records which matches all the condition in the lookup transformation ? (if lookup matches the codition for duplicate values)

1585


What is the use of default key?

625


What is the difference between database and server?

530


wHat Is THE difference between MOVEL and MOVEL(P)……….. CAN ANYONE EXPLAIN ME..

2503