PhpOrient - dbDrop()

Remove the given database from OrientDB.

Dropping Databases

In certain situations, you may want to remove a full database from the OrientDB Server. For instance, if you create a temporary database in memory for certain operations or if you want to provide the user with the ability to uninstall the database from within the application, without removing OrientDB itself.

Syntax

$client->dbDrop(
    <database-name>,
    <storage-type>)

• <database-name> Defines the database name.
• <storage-type> Defines the storage type. This is an optional variable, defaults to PLocal.
  • PhpOrinet::STORAGE_TYPE_PLOCAL Sets the PLocal storage type.
  • PhpOrient::STORAGE_TYPE_MEMORY Sets in-memory storage type.

Example

For instance, in the event that your application encounters a catastrophic failure in the database, you might want a function that allows you to reset it to a clean state.

// RESET DATABASE
function resetDatabase($client, $dbname){

    // REMOVE DATABASE
    $client->dbDrop($dbname, PhpOrient::STORAGE_TYPE_MEMORY);

    // CREATE DATABASE
    $client->dbCreate($dbname, PhpOrient::STORAGE_TYPE_MEMORY);
}

This function removes the given database, then uses the dbCreate() method to create a new one with the same name and storage type.