final public static Database::addConnectionInfo($key, $target, array $info)

The key of the currently active database connection. Type: string File

Flag to indicate a query call should return the prepared statement. File core/lib/Drupal/Core/Database/Database

Flag to indicate a query call should simply return NULL. This is used for queries that have no reasonable return value anyway, such as INSERT

final protected static Database::openConnection($key, $target)

final public static Database::getConnectionInfo($key = 'default')

public static Database::getConnectionInfoAsUrl($key = 'default')

final public static Database::getAllConnectionInfo()

public static Database::ignoreTarget($key, $target)

final public static Database::getLog($logging_key, $key = 'default')