DISTINCT CLAUSE:
- The main purpose of using this distinct clause is to eliminates duplicates.
Syntax of Distinct Clause : distinct <column>/<collist>
Example: Select distinct job from emp
Job
Analyst
Clerk
Manager
Salesman
Example:- Select distinct deptno, job from emp
Deptno job
10 manager
10 clerk
20 manager
20 hr
20 clerk