what is mean by prmary key and foreign key and how can we
diffrentiate that?
Please answer me.
Advance thanks.
Answer Posted / ritesh singhq
primary key is a complete date for all the member and
subject like and employee and all the data like
sale : note book pen pencil eraser
foreign key is a complete data of particular 1 thing like
note book : company name , numn of note book , creation
date etc
Is This Answer Correct ? | 4 Yes | 0 No |
Post New Answer View All Answers
What is the usage of analyze command in oracle?
What are the differences between char and varchar2 in oracle?
Is truncate autocommit in oracle?
What is a snapshot in oracle database?
How to convert raw data type into text in oracle? Explain
How to drop an existing table in oracle?
Explain the use of grant option in exp command.
In not less than 100 words what's the main difference between Rolap and Molap in ORACLE ?
how to convert .db (extention) database file into .dmp (extention ) for oracle database ?
How can I see all tables in oracle?
What is a subquery?
How to check your oracle database 10g xe installation?
How to define an oracle cursor variable?
Whats the benefit of dbms_stats over analyze?
What privilege is needed for a user to query tables in another schema?