Answer Posted / smita
Hi,
No , we cant create pk eithout unique index it
implicitelygenerater by oracle.
I want to clear that pk can b on one or more col but only
one pk.
While unique constraint can b one or more col and can b one
or morn unique key in a table
| Is This Answer Correct ? | 10 Yes | 1 No |
Post New Answer View All Answers
Why do we use sql constraints?
Why triggers are used?
How many types of relationship are there?
Which table is left in join?
How can I change database name in sql?
How many types of index are there?
Does asenumerable execute the query?
What is the maximum database size for sql express?
What is an emotional trigger?
Which is faster subquery or join?
How many developers work on postgresql?
How does join work in sql?
what is the difference between clustered and non clustered index in sql? : Sql dba
What is pl sql block in dbms?
Explain polymorphism in pl/sql.