public SelectExtender::havingIsNull($field)

public Merge::expression($field, $expression, array $arguments = NULL)

The fields by which to order this query. This is an associative array. The keys are the fields to order, and the value is the direction to order

public Select::countQuery() Get the

public ConditionInterface::isNull($field)

public Condition::notExists(SelectInterface $select)

Array of conditions. Type:

public PlaceholderInterface::uniqueIdentifier()

public SelectExtender::orConditionGroup()

General class for an abstracted UPDATE operation. Hierarchy class \Drupal\Core\Database\Query\