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
Explain the use of consistent option in exp command.
How to convert raw data type into text in oracle? Explain
Compare and contrast between sql and sql server and explain its various functions?
What is a relational database management system?
Explain joins in oracle?
How to create an initialization parameter file?
What is merge statement used for?
What are the different windows events activated at runtime ?
Explain an exception?
What is the max number of columns in an oracle table?
What are the benefits of ordbms?
What is parameterized cursor in oracle?
1) Does oracle have any table which contain all the exceptions and it's code internally?
What is a directory object?
How to generate query output in html format?