What is SQL?
SQL (pronounced "ess-que-el") stands for Structured
Query Language. SQL is used to communicate with a database.
According to ANSI (American National Standards Institute), it
is the standard language for relational database management
systems. SQL statements are used to perform tasks such as update
data on a database, or retrieve data from a database. Some common
relational database management systems that use SQL are: Oracle,
Sybase, Microsoft SQL Server, Access, Ingres, etc. Although
most database systems use SQL, most of them also have their
own additional proprietary extensions that are usually only
used on their system. However, the standard SQL commands such
as "Select", "Insert", "Update",
"Delete", "Create", and "Drop"
can be used to accomplish almost everything that one needs to
do with a database. This tutorial will provide you with the
instruction on the basics of each of these commands as well
as allow you to put them to practice using the SQL Interpreter.
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