Joomla! Documentation™

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JDatabase is an abstract class which is extended by specific database drivers. It provides database connections for Joomla.

Defined in

libraries/joomla/database/database.php

Methods

Method name	Description
__construct	Database object constructor
getInstance	Returns a reference to the global Database object, only creating it if it doesn't already exist.
__destruct	Database object destructor
getConnectors	Get the database connectors
connected	Determines if the connection to the server is active.
hasUTF	Determines UTF support
setUTF	Custom settings for UTF support
addQuoted	Adds a field or array of field names to the list that are to be quoted
splitSql	Splits a string of queries into an array of individual queries
isQuoted	Checks if field name needs to be quoted
debug	Sets the debug level on or off
getUTFSupport	Get the database UTF-8 support
getErrorNum	Get the error number
getErrorMsg	Get the error message
getEscaped	Get a database escaped string
getLog	Get a database error log
getTicker	Get the total number of queries made
nameQuote	Quote an identifier name (field, table, etc)
getPrefix	Get the database table prefix
getNullDate	Get the database null date
setQuery	Sets the SQL query string for later execution.
replacePrefix	This function replaces a string identifier $prefix with the string held is the _table_prefix class variable.
getQuery	Get the active query
query	Execute the query
getAffectedRows	Get the affected rows by the most recent query
queryBatch	Execute a batch query
explain	Diagnostic function
getNumRows	Get the number of rows returned by the most recent query
loadResult	This method loads the first field of the first row returned by the query.
loadResultArray	Load an array of single field results into an array
loadAssoc	Fetch a result row as an associative array
loadAssocList	Load a associactive list of database rows
loadObject	This global function loads the first row of a query into an object
loadObjectList	Load a list of database objects
loadRow	Load the first row returned by the query
loadRowList	Load a list of database rows (numeric column indexing)
insertObject	Inserts a row into a table based on an objects properties
updateObject	Update an object in the database
stderr	Print out an error statement
insertid	Get the ID generated from the previous INSERT operation
getCollation	Get the database collation
getVersion	Get the version of the database connector
getTableList	List tables in a database
getTableCreate	Shows the CREATE TABLE statement that creates the given tables
getTableFields	Retrieves information about the given tables
Quote	Get a quoted database escaped string
GetCol	ADODB compatability function
Execute	ADODB compatability function
SelectLimit	ADODB compatability function
PageExecute	ADODB compatability function
GetRow	ADODB compatability function
GetOne	ADODB compatability function
BeginTrans	ADODB compatability function
RollbackTrans	ADODB compatability function
CommitTrans	ADODB compatability function
ErrorMsg	ADODB compatability function
ErrorNo	ADODB compatability function
GenID	ADODB compatability function
test	Test to see if the MySQLi connector is available

Importing

jimport( 'joomla.database.database' );

• Accessing the database using JDatabase