My Sql

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My Sql

  1. 1. Database
  2. 2. <ul><li>MySQL is a powerful Relational Database Management System (RDBMS) which uses Structured Query Language (SQL) statements. </li></ul><ul><li>SQL is a database language that is used to retrieve, insert, delete and update stored data. </li></ul>
  3. 3. <ul><li>The data in MySQL is stored in database objects called tables. </li></ul><ul><li>A table is a collections of related data entries and it consists of columns and rows. </li></ul>C R O W L U M N
  4. 4. <ul><li>RDBMS is a software that: </li></ul><ul><li>Enables you to implement a database with tables, columns, and indexes. </li></ul><ul><li>Guarantees the Referential Integrity between rows of various tables. </li></ul><ul><li>Updates the indexes automatically. </li></ul><ul><li>Interprets an SQL query and combines information from various tables. </li></ul>
  5. 5. <ul><li>S tructured Q uery L angauge is cross between a math-like language and an English-like language that allows us to ask a database questions or tell it t o do things. </li></ul><ul><li>It uses English phrases to define an action, but uses math-like symbols to make comparisons. For example: </li></ul><ul><li>Where 'SELECT', 'FROM' and 'table' are in English, but '*' is a symbol that means all. </li></ul>
  6. 6. <ul><li>MySQL is released under an open-source license. So you have nothing to pay to use it. </li></ul><ul><li>MySQL works on many operating systems and with many languages including PHP, PERL, C, C++, JAVA etc. </li></ul><ul><li>MySQL works very quickly and works well even with large data sets. </li></ul>
  7. 7. <ul><li>MySQL is a database server program and as such is installed on one machine, but can 'serve' the database to a variety of locations. </li></ul>
  8. 8. <ul><li>The MySQL Server is installed on a Server and can be accessed directly via various client interfaces, which send SQL statements to the server and then display the results to a user. </li></ul>
  9. 9. <ul><li>One great thing about MySQL is that it can be scaled down to support embedded database applications. Perhaps it is because of this reputation that many people believe that MySQL can only handle small to medium-sized systems. </li></ul><ul><li>The truth is that MySQL is the standard database for web sites that support huge volumes of both data and end users (like Yahoo, Google). </li></ul>
  10. 10. <ul><li>http://www.w3schools.com/PHP/php_mysql_intro.asp </li></ul><ul><li>http://www.keithjbrown.co.uk/vworks/mysql/mysql_p1.php </li></ul><ul><li>http://www.tutorialspoint.com/mysql/mysql-introduction.htm </li></ul>

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