Consider the following emp relation and rename it with your name: EMP_NO EMP_NAME EMP_GRADE EMP_SAL DEPTNO START_DATE Insert Some data in above table: apply truncate and drop command on the table to...

Consider the following emp
relation and rename it with your name:

1. Insert Some data in above table: apply truncate and drop command on the table to show the difference between both commands.


2. Drop constraint fromemp_no and considerdeptno as primary key.