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.
|
