what are primary key and foreign key ?

Answer Posted / rukumanikhandhan

primary key is the key which follows uniqueness in the
entire table.
primary key of one table will be called as foreign key in
another table.

Is This Answer Correct ?    7 Yes 2 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Explain what are tp-lite and tp-heavy monitors?

514


What is local database?

548


What do you mean by checkpoints in dbms?

471


How to deactivate triggers?

516


Can anybody give me link for BOXI R3.1 Key please

2199






What do you understand by join?

540


Explain armstrong rules? How they are complete and/or sound?

492


Can you have more than one cursor open at any one time in a program ?

523


RDBMS file system can be defined as

573


Define transaction and transaction isolation levels?

548


What will be the maximum size of an extent of a segment if the tablepac's default storage values are specified as (initial 8K next 16k minextent 4 pctincrease 100).Explain.

1478


Is file system a database?

483


What is actional flow mapping?

537


Can you explain insert, update and delete query?

534


What are the six database objects?

473