Skip to main content

Answers for Basic SELECT with Conditions

Answers on Basic SELECT statement with Conditions:


1. SQL> SELECT * FROM emp WHERE ename LIKE 'S%';

2. SQL> SELECT * FROM emp WHERE ename LIKE '_L%';

3. SQL> SELECT * FROM emp WHERE ename LIKE '%E_';

4. SQL> SELECT * FROM emp WHERE ename LIKE '____';

5. SQL> SELECT * FROM emp WHERE ename LIKE '%L%';

6. SQL> SELECT * FROM emp WHERE ename LIKE '_____%';

7. SQL> SELECT * FROM emp WHERE sal BETWEEN 2000 and 3000;

9. SQL> SELECT * FROM emp WHERE mgr IS NULL OR COMM IS NULL;

10. SQL> SELECT * FROM emp WHERE mgr IS NULL AND COMM IS NULL;

11. SQL> SELECT * from emp WHERE job = 'MANAGER';

12. SQL> SELECT * from emp WHERE job = 'MANAGER' and deptno in (10,20);

13. SQL> SELECT * FROM emp WHERE job IN ('CLERK','ANALYST') AND sal >= 1000 AND deptno IN (20,30);

14. SQL> SELECT * FROM emp where deptno in (20,30) and comm IS NULL;

15. SQL> SELECT * FROM emp WHERE ename LIKE ('A%') OR ename LIKE ('S%');

16. SQL>SELECT * FROM emp WHERE ename NOT LIKE ('%S') AND deptno IN (20,30);

17. SQL> SELECT * FROM emp where comm IS NOT NULL AND sal > 1500 AND deptno = 30;

18. SQL> SELECT * FROM emp where comm IS NOT NULL AND sal > 1500 AND job = 'MANAGER'
 
19. SQL> SELECT * FROM emp WHERE job = 'MANAGER' OR job = 'CLERK' AND sal >=2000 AND deptno NOT IN (10,20);

20. SQL> SELECT * FROM emp WHERE COMM IS NOT NULL;

21. SQL> SELECT * from emp WHERE sal NOT BETWEEN 2000 AND 3000 AND job LIKE ('%MAN%');

Labels:

Comments

Unknown said…
Hello Sir,
In ans 15 the condition is dat deptno should be 20 along wid the other conditions.
September 22, 2013 at 6:14 PM
Unknown said…
This comment has been removed by the author.
September 22, 2013 at 6:15 PM
Unknown said…
19. List emp working as managers and clerks with Salary atleast 2000 except in dept 10 and 20

SQL> SELECT * FROM emp WHERE job = 'MANAGER' OR job = 'CLERK' AND sal >=2000 AND deptno NOT IN (10,20);

The above ans returns the records who are working in department 10,20,30. but the question is not
to display the employees who are working in department 10 and 20.

for this the ans is:

SQL> SELECT * FROM emp WHERE (job = 'MANAGER' OR job = 'CLERK') AND sal >=2000 AND deptno NOT IN (10,20);
August 28, 2014 at 7:31 PM
Post a Comment

Popular posts from this blog

SQL Interview Questions on Subqueries

SUB Queries:
1. List the employees working in research department 2. List employees who are located in New York and Chicago
3. Display the department name in which ANALYSTS are working
4. Display employees who are reporting to JONES
5. Display all the employees who are reporting to Jones Manager
6. Display all the managers in SALES and ACCOUNTING department
7. Display all the employee names in Research and Sales Department who are having at least 1 person reporting to them
8. Display all employees who do not have any reportees
9. List employees who are having at least 2 reporting
10. List the department names which are having more than 5 employees
11. List department name having at-least 3 salesman
12. List employees from research and accounting having at-least 2 reporting
13. Display second max salary
14. Display 4th max salary
15. Display 5th max salary  -- Answer for nth Max Salary
Co-Related Subqueries:
16. Write a query to get 4th max salary from EMP table
17. Write a query to get 2nd…
21 comments
Read more

Basics of RDBMS

Data
Small set of information becomes data, this set of information helps make decision. Data is always some useful information.


Database
Place where you store the data. Database represents some aspect of the real world called "miniworld". A database is designed, built and populated with data for a specific purpose. It has intended group of users and some preconceived applications in which these users are interested.

In other words, a database has some source from which data is derived, some degree of interaction with events in the real world and an audience that is actively interested in the contents of the database.

Database can also be defined as collection of one or more tables.

Ex: Mobile, human brain etc



DBMS (Database Management System)
Is a program that stores retrieves and modifies data in the database on request.

Study of different techniques of design, development and maintenance of the database

Types of DBMS
These types are based upon their management of database s…
101 comments
Read more

Answers for SQL Functions

1. SQL> SELECT empno, ename FROM emp WHERE Length(ename) = 4;

2. SQL> SELECT empno, ename, job FROM emp where Length(job)=7;

3. SQL> SELECT Length('qspiders') - Length(replace('qspiders','s','')) FROM dual;

4. SQL>  SELECT empno, ename, job FROM emp WHERE Instr(job,'MAN') >0;

5. SQL> SELECT empno, ename, job FROM emp WHERE Instr(job, 'MAN') =1;

6. SQL> SELECT empno, ename, job FROM emp WHERE (Length(ename) - Length(Replace(ename, 'L',''))) = 1;

7. SQL> SELECT * FROM dept WHERE Instr(dname,'O') > 0;

8. SQL> SELECT Concat(ename,' working as a ') || Concat(job, ' earns ') || Concat(sal, '  in ') || Conc
at('dept ',deptno) AS text from emp;

OR

SQL> SELECT Concat(Concat(Concat(Concat(Concat(Concat(Concat(ename,' working as a '), job),' earns '), sal),'  in '),'dept '), deptno) AS text FROM emp;

9. SQL> SELECT empno, ename…
40 comments
Read more