Manage connection sessions

In the Services tool window, you can view data sources, connection sessions, and session clients.

In the picture above:

Data source node.
Disconnected session.
Connected session.
Session clients.

For information about the connection session managing options and toolbar controls, refer to Services tool window controls.

When you connect to a database server from the IDE, DataSpell and the server establish a session to exchange information. The session is a wrapper that stores information about the connection (connected or disconnected), transaction control (automatic or manual), the DBMS_OUTPUT state for Oracle (enabled or disabled), and other settings.

A session has two states: connected and disconnected. When you run a query to a database or refresh an object state, the session connects. A small green circle indicates that communication between the IDE and a data source is active.

If you close DataSpell and open it again, all your sessions will be available in the Services tool window, but they will be disconnected.

A session node may include a different number of session clients. A session client is any entity that needs to communicate with a database. It can be a query console; an SQL file; a table, a view or any other object opened in the data editor.

The following table includes basic actions that you can use to work with sessions.

Action	Description
Create a connection session to a data source	Click the <session> list and select New session.
Attach to an existing connection session	Click the <session> list and select an existing session.
Detach a connection session	Click the <session_name> list and select an existing session.
Rename a connection session	In the Services tool window, right-click a session and select Rename Session.
Move a session or a data source to a separate tab	In the Services tool window, right-click a session or a data source and select Show in New Tab. To revert this action, close the separated tab.
Close a connected session	In the Services tool window, right-click a session and select Close Session. The session will be detached from its session clients, it will also disappear from the list.
Close all connection sessions	In the Services tool window, right-click a data source and select Close All Sessions.

Configuring session options

Set a time zone for a session

In the Database tool window ( Window | Tool Windows | Database) , click the Data Source Properties icon .
Select a data source that you want to modify and click the Options tab.
In the Time zone field, start typing the time zone that you want to use.
Apply settings and click OK.

Change a data source and a connection session

Detach a file from the current connection session. To detach the file, click Detach Session from the Sessions list.
From the list of dialects, select another dialect.
From the Sessions list, select a connection session of this dialect.

Services tool window controls

For more information about the Services tool window, see the Services tool window topic.

Sessions

Icon	Action	Description
Tx	Tx Mode and Tx Isolation	Choose the isolation level for database transactions and the way transactions are committed. Auto: each statement is executed in its own transaction that is implicitly committed. Manual: transactions are committed and rolled back manually.
	Commit `Control+Alt+Shift+Enter`	Commit the current transaction.
	Rollback	Roll back the last transaction.
	Cancel Running Statements `Control+F2`	Stop execution of running statements.
	Restore Default Layout `Control+F2`	Restore visual elements of are arranged.
	Rename Session	Display the Rename dialog where you can specify a name for a session.
	Close Session	Close the selected session.
	Show in New Tab	Move the selected items to a separate tab.
	Open Each in New Tab	Split the selected items into separate tabs.
	Open Each Tab in New Tab	Create separate tabs for each type of service.
	Delete `Delete`	Close all opened sessions to a data source. Identical to Close All Sessions.

Last modified: 21 June 2023