what is mean by prmary key and foreign key and how can we
diffrentiate that?
Please answer me.
Advance thanks.
Answer Posted / sandeep.n
primary key means to provide the information that the
colomn belongs to the same table, where as the forigen key
means to get the data from other table.
| Is This Answer Correct ? | 14 Yes | 4 No |
Post New Answer View All Answers
What is oracle open database communication (odbc)?
what happened to the global index when I truncate the data in one of the partition?
What is a sub query? What are its various types?
What is set verify off in oracle?
Can group functions be mixed with non-group selection fields?
What privilege is needed for a user to insert rows to tables in another schema?
What is the parameter mode that can be passed to a procedure?
How will you differentiate between varchar & varchar2?
What is the difference between "as" and "is" in an oracle stored procedure?
How to use "out" parameter properly?
What happens if recursive calls get out of control?
How to update values on multiple rows in oracle?
How to load a large xml file?
Can we create database in oracle using command line ?
Explain a private synonyms?