What is DBMS?
- A database management system (DBMS) is a system, usually automated and
computerized, used to manage any collection of normalized data.
- The DBMS manages storage and access to the data, and provides a query
language to specify actions associated with the data. The standard query language
is SQL.
- A DBMS generally provides a client application that can be used to directly
manipulate the data, as well as a programmable interface. MySQL provides a set of
command line clients, as well as a program interface.
What is RDBMS ?
- Information is stored in tables. Tables store information about entities.
- Entities have characteristics called attributes.
- Each row in a table represents a single entity Each row is a set of attribute values Every row must be unique, identified by a key.
- Relationships --associations among the data values are stored
PHP and MySQL ?
- MySQL is a database server
- MySQL is ideal for both small and large applications
- MySQL supports standard SQL
- MySQL is free to download and use
PHP + MySQL ("PHP combined with MySQL are cross-platform (means that you can develop in Windows and serve on a Unix platform)")
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