Difference between primary key and unique key ?
Answer Posted / ajoy
primary key and unique key both can be referenced to other
table as foreign key. please check this error message
ORA-02270: no matching unique or primary key for this
column-list
| Is This Answer Correct ? | 4 Yes | 7 No |
Post New Answer View All Answers
What are the different types of modules in oracle forms?
What are the components of logical database structure in oracle database?
how can we store any pdf file in oracle
Explain the use of log option in exp command.
What is tns entry?
How i can handle exception in large code like 1000 line without distrubing the code or without exception handler sction?
What operating systems are supported by oracle database 10g xe?
How to declare a local variable?
Query to retrieve record for a many to many relationship ?
What is a oracle database?
What to do if the binary spfile is wrong for the default instance?
How to change system global area (sga) in oracle?
Difference between hot backup vs. Cold backup?
How to best split csv strings in oracle 9i?
Difference between inner join vs where ?