What is SQL?
- SQL stands for Structured Query Language
- SQL lets you access and manipulate databases
- SQL is an ANSI (American National Standards
Institute) standard
What Can SQL do?
- SQL can execute queries against a database
- SQL can retrieve data from a database
- SQL can insert records in a database
- SQL can update records in a database
- SQL can delete records from a database
- SQL can create new databases
- SQL can create new tables in a database
- SQL can create stored procedures in a database
- SQL can create views in a database
- SQL can set permissions on tables, procedures,
and views
SQL is a Standard - BUT....
Although SQL is an ANSI (American National
Standards Institute) standard, there are many different versions of the SQL
language.
However, to be compliant with the ANSI standard,
they all support at least the major commands (such as SELECT, UPDATE, DELETE,
INSERT, WHERE) in a similar manner.
Note: Most of the SQL database programs
also have their own proprietary extensions in addition to the SQL standard!
Using SQL in Your Web Site
To build a web site that shows some data from a
database, you will need the following:
- An RDBMS database program (i.e. MS Access, SQL
Server, MySQL)
- A server-side scripting language, like PHP or
ASP
- SQL
- HTML / CSS
For
more on SQL CLICK here