what is mean by prmary key and foreign key and how can we
diffrentiate that?
Please answer me.
Advance thanks.
Answer Posted / b.jaganathan
PRIMARY KEY: the key which is used in the database table
for an identification is said to be a "PRIMARY KEY"....
FOREIGN KEY: the key which is used in the another database
table is said to be a foreign key, for the specified data
table........
| Is This Answer Correct ? | 2 Yes | 1 No |
Post New Answer View All Answers
Is it possible to set second Primary Key Constraint in a table in Oracle Database ?
Why is oracle so popular?
What are the numeric comparison operations?
How to run the anonymous block again?
What is the difference between postgresql and oracle?
How to define an oracle sub procedure?
How to insert multiple rows with one insert statement in oracle?
How do I connect to oracle database?
Calculate difference between 2 date / times in oracle sql?
material view and view disadvantages?
What is a tns file?
How to assign data of the deleted row to variables?
What is a tns service name?
How to rebuild an index in oracle?
Design database draw er diagram for a certain scenario ?