Returns a new UpdateQuery object for the active database.
$table: The table to update.
$options: An array of options to control how the query operates.
UpdateQuery A new UpdateQuery object for this connection.
function db_update($table, array $options = array()) {
if (empty($options['target']) || $options['target'] == 'slave') {
$options['target'] = 'default';
}
return Database::getConnection($options['target'])
->update($table, $options);
}