What are the different sql commands?
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What is indexing in sql and its types?
What is the difference between distinct and unique in sql?
Does a user_objects view have an entry for a trigger?
Write a sql query to get the third highest salary of an employee from employee_table?
select * from emp where sal in(select max(sal) from emp) here there is any limit for in operator how many values accpect ?
What is secondary key?
Which is faster union or join?
What is composite data type in pl sql?
Maximum how many triggers can we use in trigger and How to find out how many records it fetched.
What types of commands can be executed in sql*plus?
Name the tables where characteristics of Package, procedure and functions are stored ?
What is a loop in sql?