$on public property The join condition to be used when this query

populate() public method Converts the raw query results

$schemaMap public property Mapping between PDO driver names and

findColumns() protected method Collects the table column

$driverName public property Name of the DB driver

loadColumnSchema() protected method Loads the column information

dropForeignKey() public method Builds a SQL statement

dropColumn() public method Creates a SQL command for dropping

$isActive public read-only property Whether the DB connection

getDb() protected method (available since version 2.0.6)