DBMS LAB MANUAL

CYCLE-1:

1->Create a student table that contains sid,sname,branch,sem,dob,marks.

2->Insert rows into the table.Using various ways of insertion(insert)command.

3->alter the student table to contain address of the student,and also modify the size of sname.

4->Display the content of the table.

5->delete some rows from student table based on conditions.

6->drop the student table.

CYCLE-2:

1->Create the payroll data base consider only two tables employee and department.

2->simple queries on the above database.

a)list all information of the above both tables.

b)list the empno,ename,jobtitle,and hiredate of employee from the employee table.

3->list the name,salary of the employees who are clerks.

4->list the name,job,salary of every employee joined on ‘december 17,1980’,

5->list name and annual salary of all the employees.

6->list the department name &deptno for departments having deptno.>=20.

7->list the employees who have salary between 1000&2000.

8->list the name,salary,commision of the employees where commision is greater than their salary.

9->list the name,monthly salary and daily salary and hourly salary for employee;assume that there are 22 working days in a month,8 working hours in a day.display the rows with coloumn names as monthly,daily &hourly sal.

10->list the name and empno of managers who earn more than 20000.display the result in alphabetical order of the name.

11->display all employee names which have ‘TH’or ‘LL’ in them.

12->list the details of the employees in the depts of 10 &20 in the order of empno.

13->display the information about the managers and clerks from the column ‘Job’ in the table emp,order the result by deptno.

14->list the empnames that don’t end with ‘s’.

15->list the emp names that begin with ‘c’

16->list the name,job&dept of each emp whose names falls in the range c to p.

17->list the names of the employees strats with T/t anad ends with R/r.

18->list the name of employees who joined during 1983.

19->list the data as shown below”Smith has held the position of clerk in dept 20 since 19 june,1983”

20->list all rows in employee table by converting commisison column to zero.

CYCLE-3:

1->Write a query that accepts a jobtitle and displays all the rows according to that title.

2->list the length of the names appearing on the emptable,eliminate duplicate values.

3->list the names and hire the date of those in the dept of 20.display the hire date formatted as ‘13/oct/99’(ie. ‘dd/mm/yy’).

4->display the experience of the manager round to the nearest whole number of the months.

5->write a query to find the average sal per job in each departments.

6->display avg sal.minimum sal,max sal of emp having job clerk or manager.

7->list the emp who earned less than 30%of the managers salary.

8->display the details of the employee who joined last in each dept.

9->Write a query to display the no.of employees and their totla sum of salaries grouped by their deptno.

10-> Write a que ry to list no.of employees working in “NEW YORK”.

11-> Write a query to list no.of employees along with a message depending on salary,if salary>1500 ,the message will be ‘above target’;salary<1500,the message will be ‘below target’;salary=1500,then it is ‘not in target’.

12->display those jobs where the min sal is >=3000.

13->find all the depts which have more than 3 employees.

14-> Write a query to list the emp whose job is same as ‘Blake’.

15-> Write a query to list no.of employees who earn more than the lowest salary in a department.

16->list the job with highest average salary.

17->display each empname with hire date and review date.assume review date is one year after the hire date,order the output in the ascending order of the review date.

18->list the emp where salary is that of the “scott”or “ward”.

19-> list the emp whose salary is greater than any clerk.

20-> list the dept with average salary is higher than any other department.

21-> Write a query to list the emp who are earning more than “miller”.

22-> Write a query to list the depts which are having avg sal more than avg sal of all employees.

23->-> Write a query to list the dept with highest avg salary.

24-> Write a query to list the dept which are having the max sal>4000 and total no.of employees>6.

25-> Write a query to list the dept which are having the tot sal more than all clerks total salary but having max sal lesser than all managers.

26-> Write a query to list the emps who are earning more than managers.

27-> Write a query to list the emp with top 3 salaries.

28-> Write a query to list the ename,sal and their salary to avg.sal difference.

29-> Write a query to display the service left for an employee assuming that 58 years of the age limit for the service.

30->display all the employees who haven’t joined in the same year as that of those employees working in the dept with deptno..’20’.

CYCLE-4:

Simple PL/SQL programs:

1->Write a program to accept two numbers and add them.

2-> Write a program to print below given no.

3-> Write a program wish the user depending on the time.

4-> Write a program to check whethere a given number is odd or even.

5-> Write a program to find sum of n numders.

6-> Write a program to reverse a given number.

7-> Write a program ot find the no of vowels in a given string.

8-> Write a program that checks the validity of a givem empno.handling with exception.

9-> Write a program to accept empno and print the details as follows:

Emp name/designation/annual income/grade.

10-> Write a program which accepts an empno and increases his salary by 1000/-.

CYCLE-5:

1-> Write a program to list all the employee details.

2-> Write a program to check for the existance of a given employees in emptable using the cursors.

3-> Write a program to list the details of dept entered if the dept is having employees.

CYCLE-6:

PROCEDURES.FUNCTIONS AND TRIGGERS.

1-> Write a procedure that takes emp no and amount as arguments and update the salary of an employee by the given amount.

2-> Write a procedure that delete student details by accepting studentno.

3-> Write a procedure that accepts rhe empno and return his total earning per year to the calling environment.

4-> Write a procedure to print the details of emp who is earning maximum salary.

5-> write a function to check for the existance of an employee.

6-> write a function which accepts empno as parameters and return his frade.

7->Write a trigger on employee table to fire after insert or update or delete.

8-> Write a trigger on employee table to fire before insert or update or delete.

9-> Write a trigger on employee table to fire before insert for each row.

10-> Write a trigger on employee table to fire before delete for each row.