What are the sql aggregate functions?
What is rule base and cost base optimizer?
What is the difference between a primary key and a clustered index?
What is blind sql injection?
What is self-join and what is the requirement of self-join?
What are pl/sql cursor exceptions?
What is scalar function in sql?
What types of commands can be executed in sql*plus?
How pl/sql source code can be protected?
1. what is the exact use of hint in sql. 2. How we can avoid index scan in sql even though index is there in the table.
How do you identify a primary key?
Who developed sql?
Difference between NVL, NVL2 and NULLIF