Tuesday, 18 August 2015

MYSQL DATABASE

What is MySQL?

MySQL is a database system used on the web.MySQL is a database system that runs on a server
MySQL is ideal for both small and large applications.MySQL is very fast, reliable, and easy to use
MySQL uses standard SQL.MySQL compiles on a number of platforms.MySQL is free to download and use.MySQL is developed, distributed, and supported by Oracle Corporation.MySQL is named after co-founder Monty Widenius's daughter: My

The data in a MySQL database are stored in tables. A table is a collection of related data, and it consists of columns and rows.

Databases are useful for storing information categorically. A company may have a database with the following tables:

  1. Employees
  2. Products
  3. Customers
  4. Orders



PHP + MySQL Database System

PHP combined with MySQL are cross-platform (you can develop in Windows and serve on a Unix platform).

Database Queries:
A query is a question or a request.
We can query a database for specific information and have a record set returned.
Look at the following query (using standard SQL):

Example of Query:

SELECT LastName FROM Employees.


Note:
The query above selects all the data in the "LastName" column from the "Employees" table.

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