QueryLocator

In the QueryResult object returned by the query() call, queryLocator contains a value that you will use in the subsequent queryMore() call. Note the following guidelines:

• Use a given queryLocator value only once. When you pass it in a queryMore() call, the API returns a new queryLocator in the QueryResult.
• QueryLocator objects expire automatically after 15 minutes of inactivity.
• A user can have up to 10 query cursors open at a time. If 10 QueryLocator cursors are opened when a client application, still logged in as the same user, attempts open a new one, then the oldest of the 10 cursors is released. Note that cursor limits for different Salesforce.com

Note

Cursor limits for different Force.com features are tracked separately. For example, you can have 10 query cursors open and 10 metadata API cursors at the same time.

A QueryLocator represents a server-side cursor.