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b. select * from emp where hiredate < '30-sep-81'
c. select ename from emp where job NOT like 'MANAGER'
d. select * from emp where empno IN(7369,7521,7839,7934,7788);
e. select ename from emp where deptno not in (30,40,10);
f. select ename from emp where hiredate between '30-jun-81' and '31-dec-81';
g. select distinct job from emp
h. select ename from emp where comm is NULL;
i. select ename,job from emp where job ='PRESIDENT';
j. select ename from emp where deptno is NULL;
k. select ename from emp where comm is not NULL;
l. select ename from emp where ename like 'S%' or ename like '%s';
m. select ename from emp where ename like '_I%';
n. select count(*) from emp;
o. select distinct job from emp;
p. select sum(sal) from emp;
q. select max(sal),min(sal),avg(sal) from emp;
r. select max(sal) from emp where job like 'SALESMAN';
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