|workspace||A collection of queries. Use workspaces to organize your queries. You can create multiple workspaces, but only one is active at a time.|
|history||A record of previously executed versions of a query. Each time you execute a query in Query Console, its query text is saved in the history. Use the history to restore a query to a previous state.|
|content source||The database and App Server combination against which your query executes. Query Console automatically builds a list of available content sources for your MarkLogic Server and makes it available in the Content Source list.|
The workspaces and queries created in Query Console are stored in MarkLogic Server, so they are available to you from any computer with access to your MarkLogic Server instance. For example, you can create workspaces and queries on your desktop computer and use them from a lab machine with access to the same MarkLogic Server instance.
The picture below summarizes key Query Console UI features. For more information on using specific features, see the Query Console Walkthrough.
You should only have one Query Console session active at a time for any given MarkLogic user. Query Console saves state to MarkLogic Server. If a user has multiple Query Console sessions active concurrently, the state can become inconsistent.