If a table column has is UNIQUE and has NOT NULL, is it
equivalent to a PRIMARY KEY column?
Answer Posted / amit
if that so then your referential entrigity will be spoil
foreign key will not be recognised means data will not true.
| Is This Answer Correct ? | 5 Yes | 8 No |
Post New Answer View All Answers
What is recovery manager in Oracle?
Is the After report trigger fired if the report execution fails ?
Can u please explain me the Discussion on Except ,using cast like type cast. Question in the context of difference between two tables
What are data pump export and import modes?
What is a proxy class?
21. Using a set operator, display the client number of all clients who have ever placed an order and whose whose name does not contain the string Sm.
Explain the use of log option in exp command.
How to update values in a table in oracle?
How to assign a table row to a record variable?
hello friends Im doing my final year engineering in B.Tech.. one of uncle said he can provide job in his company if im good in database management. but i have only basic knowledge about database, so like to join database management course in good intuition. so friends kindly help me to get good intuition because its my future.
Is postgres faster than oracle?
How to get execution statistics reports on query statements?
How view is different from a table?
What are privileges and grants?
what are the default admin accounts in Oracle 10g ?