Database Connection With Mysql
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This document discusses connecting to MySQL databases from PHP. It covers installing MySQL, creating databases and tables, defining data source names (DSNs) to connect, and using utilities like mysqldump to backup data and mysqlimport to import data. PHP functions like mysql_connect() and mysql_select_db() are demonstrated to connect to and select databases. The phpMyAdmin tool is also introduced as a way to manage MySQL databases through a web interface.
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![PHP – Database connection with mysql Harit Kothari [email_address]](https://image.slidesharecdn.com/database-connection-with-mysql-1205301644800939-3/85/Database-Connection-With-Mysql-1-320.jpg)
![Database & Table creation Either use phpmyadmin to create / alter OR Go to mysql prompt and execute as under: shell>create database db_name shell>create table table_name (colname datatype [size] [, ....] constraints...)](https://image.slidesharecdn.com/database-connection-with-mysql-1205301644800939-3/85/Database-Connection-With-Mysql-5-320.jpg)
![Database connection $db = DB::connect(DSN [, options ]); DB::isError($db) This will return if any error occurred while connecting to DataBase with DSN Options are: persistent - Connection persists between accesses optimize - What to optimize for debug - Display debugging information](https://image.slidesharecdn.com/database-connection-with-mysql-1205301644800939-3/85/Database-Connection-With-Mysql-9-320.jpg)
![Ways to dump sql DB shell> mysqldump [options] db_name [tables] shell> mysqldump [options] --databases db_name1 [db_name2 db_name3...] shell> mysqldump [options] --all-databases](https://image.slidesharecdn.com/database-connection-with-mysql-1205301644800939-3/85/Database-Connection-With-Mysql-11-320.jpg)
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Database Connection With Mysql
- 1. PHP – Database connection with mysql Harit Kothari [email_address]
- 2. Agenda Installation service, port, Running through WAMP Database creation Table creation mysqldump and mysqlimport utility phpmyadmin utility
- 3. Installation Download mysql database installation pack Install it by following manual steps Start mysql service by using appropriate menu
- 4. service, port, Running through WAMP mysql runs as a OS service This service provides access to database To access, we require 2 parameters: Service host name Port PHP supports many RDBMS mysql is most suitable and famous with PHP
- 5. Database & Table creation Either use phpmyadmin to create / alter OR Go to mysql prompt and execute as under: shell>create database db_name shell>create table table_name (colname datatype [size] [, ....] constraints...)
- 6. Data source names / DSN Syntax: dbsyntax://username:password@protocol+hostspec/database Where: dbsyntax represents RDBMS name Username & password of database user for authentication Protocol is optional – e.g. TCP Hostspec is hostname on which datbase service is running Database is actual database name under dbsyntax
- 7. DSN Examples mysql:///webdb mysql://localhost/webdb mysql://bondview@localhost/webdb mysql://bondview@tcp+localhost/webdb mysql://bondview:007@localhost/webdb
- 8. Syntax DataBase Mysql MySQL Pgsql PostgreSQL Ibase InterBase Msql Mini SQL Mssql Microsoft SQL Server oci8 Oracle 7/8/8i Odbc ODBC Sybase SyBase Ifx Informix Fbsql FrontBase
- 9. Database connection $db = DB::connect(DSN [, options ]); DB::isError($db) This will return if any error occurred while connecting to DataBase with DSN Options are: persistent - Connection persists between accesses optimize - What to optimize for debug - Display debugging information
- 10. Mysqldump – Dumping DataBase A utility to dump database for backup or offline modification A CLI utility that can be executed from SQL prompt to take regular backup of database / table as per requirements
- 11. Ways to dump sql DB shell> mysqldump [options] db_name [tables] shell> mysqldump [options] --databases db_name1 [db_name2 db_name3...] shell> mysqldump [options] --all-databases
- 12. Play with PHP Connect to database : mysql_connect("host_name", "db_username", "db_password"); Select Database : mysql_select_db("db_name");
- 13. Mysqlimport – Import data Import database, by importing one oe more text files Syntax: shell> mysqlimport options db_name input_file Useful especially while importing data from CSV files that contains data
- 14. phpmyadmin Manage mysql database – an administration tool Tool itself written in PHP to manage DataBase effectively and easily Supports operations like create, modify, dump and delete database, table, views etc Very easy to use, GUI
- 15. Summary
- 16. Whats next?