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/Drupal 8

public function Select::havingIsNull

public Select::havingIsNull($field)

Sets a condition in the HAVING clause that the specified field be NULL.

Parameters

$field: The name of the field to check.

Return value

$this

Overrides SelectInterface::havingIsNull

File

core/lib/Drupal/Core/Database/Query/Select.php, line 330

Class

Select
Query builder for SELECT statements.

Namespace

Drupal\Core\Database\Query

Code

public function havingIsNull($field) {
  $this->having->isNull($field);
  return $this;
}

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https://api.drupal.org/api/drupal/core!lib!Drupal!Core!Database!Query!Select.php/function/Select::havingIsNull/8.1.x