Logical operators-logical operators, Database Management System

Assignment Help:

Logical Operators

Rules of Precedence:

Order evaluated	Operator
1	All comparison operators

2	NOT
3	AND
4	OR

Example: To produce those records of salesman or president who are having salary above 15000/-

Select ename, job, sal from emp

Where job = 'SALESMAN' or job = 'PRESIDENT'

And sal>15000;

The query formulation as above is wrong for the problem statement. The correct formulation would be:

SELECT ENAME, JOB, SAL FROM EMP

WHERE (JOB = 'SALESMAN' OR JOB = 'PRESIDENT') AND SAL>15000;

Related Discussions:- Logical operators-logical operators

Determine the steps of path in association network, Determine the steps of ...

Determine the steps of path in association network You can analyse use of paths in association network in the following steps: Examine every operation and see what asso

Hashing techniques, folding method and mid square method using visual basic...

folding method and mid square method using visual basic

Which is a valid sql type, Which is a valid SQL type? A valid SQL Shoul...

Which is a valid SQL type? A valid SQL Should be in CHARACTER it is should be NUMERIC and FLOAT.

Describe the grant function and explain security, Describe the GRANT functi...

Describe the GRANT function and explain, how it associates to security. What kind of privileges may be granted? How are they revoked? Ans: Since more than one user can aacce

Organize the clients from email marketing, Function requirement as given: ...

Function requirement as given: 1> manage fans and likes and followings those information from facebook. twitter. google+ and linkedin etc 2> Organize the clients from email m

Stock market, need requirement analysis for database management of stock ma...

need requirement analysis for database management of stock market

Sql queries, find a name whose address is erode from student table

find a name whose address is erode from student table

Develop motel point of sale software, Project Description: I need a poin...

Project Description: I need a point of sale for motels. It needs to run on windows and requires being network able so that we can have more than one computer using it at once.

The transactions, The Transactions- A transaction is definite as the unit o...

The Transactions- A transaction is definite as the unit of work in a database system. Database systems that deal with a huge number of transactions are also termed as transaction p

Project operation, The PROJECT operation The project operation is used t...

The PROJECT operation The project operation is used to choose the records with specified attributes as discarding the others based on some related criteria. This is denotes as ∏

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages