The document contains 25 questions about querying an employee database to return information like employee names, salaries, departments, and jobs. It provides the SQL queries needed to return the requested data for each question, such as displaying employees in a certain department or salary range or with specific characteristics.

1. ACE-Pali/DBMS/PRACTICAL SOLUTION ASSISTANT PROFESSOR : Gajendra Jingar
FILE WORK Query
Q.1 Display the names of all the employees who are working in department number 10.
-->select emame from emp where deptno=10;
Q.2 Display employees name along with their salary who are MANAGER.
-->select ename,salary from emp where job='manager';
Q3. Display the employees who are getting salary between 12000 and 25000.
-->select * from emp where sal between 12000 and 25000;
Q.4 Display the annual salary of employee od dept 30.
--> select sal*12 as Annual_salary from emp where dept_no=30;
Q.5. Display employee that are clerk and managed by 7698.
-->
Q.6 Display employees of department 10 and 20.
--> select * from emp where dept_no in(10,20);
Q.7 Display employee That are not managers.
--> select * from emp where job not in('manager');
Q.8 Display employee whose name begins with character 'R'.
--> Select * from emp where ename like '%R';
Q.9 display employee that are analyst but getting salary greather than 10000.
-->select ename,salary,job from emp where JOB='ANALYST' AND SAL>10000;
Q.10 Display Employee those are not getting any commission.
-->Select empno ,ename from emp where comm is null and comm=0;
Q.11 Display all employee name along with their jobs?
--> select ename ,job from emp;
Q.12 Display all employee having 'A' in thier names?
--> select * from emp where ename like '%A%';

2. ACE-Pali/DBMS/PRACTICAL SOLUTION ASSISTANT PROFESSOR : Gajendra Jingar
Q.13.Display all employee having 'T' and 'R' in thier names?
-->
Q.14 .Display all employee that are not there in department 30?
-->select * from emp where dept_no not in(30);
Q.15 Display department located in 'xxxxx'.
--> select * from dept where city='xxxx';
Q.16 Display all the employees who are not 'Salesman' or 'Clerk'.
-->Select ename from emp where job not in(‘clerks’,’salesman’);
Q.17 Display all the employees names in lowercase.
-->Select lower(ename) from emp;
Q.18. Display all employees name with thier length.
-->Select length('rajasthan') from dual;
Q.19 write the query to calculate the length of time any employee has been with the company.
-->
Q.20. List the employee name and salary increased by 15% and expressed as a whole number.
-->SELECT ename, salary, ROUND(salary * 15/100, 0) "New Salary"FROM employees;
Q.21 list of all employee who joined after '01-jan-2000' and before '18-aug-2015'.
-->select ename from emp where hiredate < '01-jan-2000' or hiredate >'18-aug-2015';
Q.22 Display the difference between highest and lowest salary of each department.
-->select * from emp where max(sal)-min(sal);
Q.23. List all jobs for manager and difference between average salary and highest salary.
-->Select avg(sal)-max(sal) as new_salary from emp where job=’MANAGER’;
Q.24.Display minimum and maximum salary for each department.
--> select min(sal) as min_Sal, max(Sal) as max_sal from emp;
Q.25 display employee who earn more than lowest salary of department 30.
--> select ename,salary from emp where sal>min(Sal) and dept_no=30;