Generic database connector class.
An instance of this class, called $database, is created using the current Joomla configuration variables when each page is loaded. Therefore you do not generally need to create new instance of this object. If you need to access to $database within a function then remember to declare it as global.
Beginning with version 1.1, Joomla is being adapted to use the ADOdb database abstraction library (adodb.sourceforge.net). Some new methods have been added and some minor changes to existing methods have been made in order to accommodate this and these changes have been documented appropriately. Joomla versions prior to 1.1 support the MySQL database (www.mysql.com) only.
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Click To Read more about this joomla template... [joomla database class and Functions]
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A client wants to search a table within the Joomla database . Create a SELECT query to search this table based on user-defined criteria and present the list of results with navigational aids.
- Your organization uses an external accounting system running on an SQL database. Stakeholders want to be able to view a summary of expenses at any time. Create a SELECT query using SUM and GROUP BY to provide a report via the website.
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Click To Read more about this joomla template... [joomla database query]
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when you move site to a different joomla server you need backup your database.your web host should give you PhpMyAdmin access. If you're not sure, visit your web host and ask for help. If you're familiar with PhpMyAdmin, simply log in to your Joomla database and if necessary, select the database you want to backup from the drop down box top-left. Once your database is loaded into PhpMyAdmin, click the 'Export' tab at the top. A window will load - under 'Export' click 'Select All' to grab all the files, leave the other settings at default and click the 'Save as file' radio box - you can then give your backup a name in the 'File name template' field. Click 'Go' and your database backup will be created and downloaded to your PC. Once it is complete, you'll want to locate it on your PC and open it in Notepad or Dreamweaver - if it's big, this may take some time. Depending on your host, PhpMyAdmin will add information into the backup file relevant to your old hosts database server. Since we're moving it to a new host, we'll want to delete that data so we don't have any errors when we import to the new server. It will probably look like this: |
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Click To Read more about this joomla template... [joomla database backup and import]
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Joomla passwords cannot be recovered as they are set using a one-way hash function (MD5). However they can be reset to new values.
The user information is stored in the MySQL database (obviously) in the mos_users (for MAMBO) or jos_users (for JOOMLA). The prefix (mos or jos) can be configured and may be named differently for your system. |
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Click To Read more about this joomla template... [recover joomla database password]
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when you install or changed the password to my MySQL database on web hosting control panel. you maybe meet "This site is temporarily unavailable.Please notify the System Administrator.Could not connect to the database server",it's a connection issue, which could be:
wrong username / password
mysql is off or not installed on the same server
if on an external server, firewalls could prevent access.
This might be a wrong mysql version, check the requirements.
on some virtual servers, the database includes a preset prefix like: username_dbname |
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Click To Read more about this joomla template... [joomla could not connect to the database server]
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joomla database