Define aggregate functions, Database Management System

Assignment Help:

Define Aggregate functions and what aggregate functions supported by the MySQL

To calculate a summary value from a set of individual values and uses one of the functions known as aggregate functions.

These are so called for the reason that they operate on aggregates (groups) of values.

Aggregate functions include COUNT ( ) which counts records or values in a query result; MAX( ) and MIN( ) which find largest and smallest values; SUM( ) and AVG( )and which produce sums and means of values.

Related Discussions:- Define aggregate functions

Data control, Identify the need and use of data control through problem sol...

Identify the need and use of data control through problem solving, illustration

Using sql create a view rs for the relations r and s, Using SQL create a vi...

Using SQL create a view RS for the relations R and S. The view consists of the columns A and D renamed as X and Y in that order. Insert a tuple into it. Show the contents of t

Designing the fields in the data base, Designing the fields in the data bas...

Designing the fields in the data base The following are the considerations one has to remain in mind while designing the fields in the data base. Coding, compression, en

Determine the object-oriented design process, An object-oriented design pro...

An object-oriented design process 1. Define the context and modes 2. Designs the system architecture 3. Identifies the principal system objects 4. Identifies concurrency in

Write short notes on transaction state, Write short notes on transaction st...

Write short notes on transaction state? A transaction may not always complete its implementation successfully such a transaction is termed aborted A transaction must be in o

ERD, A student entity type has the following attributes,name..

A student entity type has the following attributes,name..

Super market, ..

Describe file organisation, Describe file organisation? A file is organ...

Describe file organisation? A file is organized logically as a sequence of records. These records are mapped onto disk blocks. A) Fixed-Length Records Type deposit=record

Extended star schema model, A customer places orders for parts and belongs ...

A customer places orders for parts and belongs to a particular industry group. An individual order is taken by a particular sales representative on a specific date and the sales re

Can you scan double-sided documents and remove blank pages, Can you scan do...

Can you scan double-sided documents - and remove blank pages? Our software and imaging systems supports duplex scanning, at the same time scanning both sides of a page. Program

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages