public Tasks::minimumVersion() Return

public Schema::indexExists($table, $name)

protected Schema::createPrimaryKeySql($fields)

public Delete::execute() Executes

public Connection::prepareQuery($query)

The name by which to obtain a lock for retrieve the next insert id. File core/lib/Drupal/Core/Databa

protected Connection::doEscape($string)

public Connection::upsert($table, array $options = array())

public Schema::queryTableInformation($table)

Schema::addUniqueKey($table, $name, $fields)