Top 40 sql queries for testers

SQL
Top 40 SQL Queries For Testers
1.Display employee number and total salary for each employee
select empno,sal+comm
from emp;
2.Display the names of employees whose name starts with alphabetS
select ename
from emp
where ename like 'S%';
3.Display the names of employees whose names have sencond
alphabet A in their names
select ename
from emp
where ename like '_S%';
4.Display employee name and department name for each employee
select ename,dname
from emp e,dept d
where e.deptno=d.deptno;
5.Display employee number,name and location of the department in
which he is working
select empno,ename,loc
from emp e,dept d
where e.detpno=d.deptno;
6.Display ename,dname even if there no employees working in a
particular department(use outer join)
select ename,dname
from emp e,dept d
where e.deptno(+)=d.deptno;
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SQL
7.select ename if ename exists more than once
select distinct(ename)
from emp e
where ename in (select ename from emp where e.empno<>empno);
8.Display the dept no with highest annual remuneration bill as
compensation
select deptno,sum(sal)
from emp
group by deptno having sum(sal)=(select max(sum(sal)) from emp group by
deptno);
9.List out the lowest paid employees working for each manager,
exclude any groups where min sal is less than 1000 sort the output by
sal
select e.ename,e.mgr,e.sal
from emp e
where sal in (select min(sal) from emp where mgr=e.mgr) and
e.sal>1000 order by sal;
10.Display current date
select sysdate
from dual;
11. Display various jobs along with total salary for each of the
job where total salary is greater than 40000?
select job,sum(sal)
from emp
group by job having sum(sal)>40000;
12.Display the name of employee who earn Highest Salary?
select ename, sal
from emp
where sal>=(select max(sal) from emp );

SQL
13. Display the employee Number and name for employee working as
clerk and earning highest salary among the clerks?
select ename,empno
from emp
where sal=(select max(sal) from emp wherejob='CLERK') and job='CLERK' ;
14. Display the employee names who are Working in Chicago?
select e.ename,d.loc
from emp e,dept d
where e.deptno=d.deptno and d.loc='CHICAGO';
15. Display the job groups having Total Salary greater than the
maximum salary for Managers?
select job ,sum(sal)
from emp
group by job having sum(sal) >(select max(sal) from emp where
job='MANAGER');
16. Display the names of employees from department number 10 with
salary greater than that of ANY employee working in other
departments?
select ename,deptno
from emp
where sal>any(select min(sal) from emp where deptno!=10 group by
deptno) and deptno=10 ;
17. Display the names of employees from department number 10 with
salary greater than that of ALL employee working in other
departments?
select ename,deptno
from emp
where sal>all(select max(sal) from emp where deptno!=10 group by deptno)
and deptno=10 ;

SQL
18. Display the names of employees in Upper Case?
select upper(ename)
from emp;
19. Display the names of employees in Lower Case?
select Lower(ename)
from emp;
20. Display the length of all the employee names?
select length(ename)
from emp;
21.Display the name of employee Concatinate with Employee
Number?
select ename||' '||empno
from emp;
22. Display the information from the employee table . where ever job
Manager is found it should be displayed as Boss?
select ename ,replace(job,'MANAGER','BOSS')
from emp;
23. Display those who are not managers?
select ename
from emp
where job!='MANAGER';
24.Display the details of those employees who are in sales
department and grade is 3?
select e.ename,d.dname,grade
from emp e,dept d ,salgrade
where e.deptno=d.deptno and dname='SALES' and grade=3;

SQL
25. Display those department whose name start with"S" while
location name ends with "K"?
select e.ename,d.loc
from emp e ,dept d
where d.loc like('%K') and ename like('S%');
26. Display those employees whose salary is more than 3000 after
giving 20% increment?
select ename,sal,(sal+(sal*0.20))
from emp
where (sal+(sal*0.20))>3000;
27. Display employee name,dept name,salary,and commission for
those sal in between 2000 to 5000 while location is Chicago?
Select e.ename,d.dname,e.sal,e.comm
from emp e,dept d
where e.deptno=d.deptno and sal between 2000 and 5000;
28. Display those employees whose salary is greater than his
managers salary?
Select e.ename,e.sal,e1.ename,e1.sal
from emp e,e1
where e.mgr=e1.empno and e.sal>e1.sal;
29. Display the grade and employees name for the deptno 10 or 30
but grade is not 4 while joined the company before 31-DEC-82?
select ename,grade,deptno,sal
from emp ,salgrade
where ( grade,sal) in ( select grade,sal from salgrade,emp where sal between
losal and hisal)
and grade!=4 and deptno in (10,30) and hiredate<'31-Dec-82';

SQL
30. Display those employees whose manager name is Jones?
select e.ename Superior,e1.ename Subordinate
from emp e,e1
where e.empno=e1.mgr and e.ename='JONES';
31. Delete those employees who joined the company before 31-Dec-
82 while their department Location is New York or Chicago?
select e.ename,e.hiredate,d.loc
from emp e,dept d
where e.deptno=d.deptno and hiredate<'31-Dec-82' and d.loc in('NEW
YORK','CHICAGO');
32. List out all the employee names ,job,salary,grade and deptname
for every one in a company except 'CLERK' . Sort on salary display the
highest salary?
select e.ename ,e.job,e.sal,d.dname ,grade
from emp e,salgrade,dept d
where (e.deptno=d.deptno and e.sal between losal and hisal )
order by e.sal desc;
33.Display employee name,sal,comm and netpay for those employees
whose netpay is greater than or equal to any other employee salary of
the company?
select ename,sal,NVL(comm,0),sal+NVL(comm,0)
from emp
where sal+NVL(comm,0) >any (select e.sal from emp e );
34. Display those employees whose salary is less than his manager
but more than salary of other managers?
select e.ename sub,e.sal
from emp e,e1,dept d
where e.deptno=d.deptno and e.mgr=e1.empno and e.sal<e1.sal and e.sal
>any (select e2.sal from emp e2,e,dept d1
where e.mgr=e2.empno and d1.deptno=e.deptno);

SQL
35. Delete those records from emp table whose deptno not available
in dept table?
delete from emp e
where e.deptno not in (select deptno from dept);
36. Display those enames whose salary is out of grade available in
salgrade table?
select empno,sal
from emp
where sal<(select min(LOSAL) from salgrade )
OR sal>(select max(hisal) from salgrade);
37.Display those employees who joined in the company in the month
of Dec?
Select empno,ename
from emp
where trim(to_char(hiredate,'Mon'))=trim('DEC');
38. Delete those records where no of employees in particular
department is less than 3?
Delete from emp
where deptno in (select deptno from emp group by deptno having count(*)
<3 ;
39. Display empno,ename,deptno from emp table. Instead of display
department numbers display the related department name(Use
decode function)?
select empno,ename,deptno,Decode(deptno,10,'ACCOUNTING'
,20,'RESEARCH',30,'SALES','OPERATIONS')DName
from emp;

SQL
40. Display those employees whose salary is odd value?
select ename ,sal
from emp
where mod(sal,2)!=0;
41.Display the Second maximum salary from the table using
subquery.
select max(salary)
from Employee
where salary NOT IN (select max(salary) from Employee);
42.Display the Second maximum salary from the table using
subquery.
select TOP 1 salary from ( select TOP 2 salary from employees order by salary
desc) as emp
order by salary asc

Top 40 sql queries for testers

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