Working with Previously-Defined Analytic Workspaces

Before you can work with a previously-defined analytic workspace, you must first attach the analytic workspace by issuing an AW ATTACH statement. You can attach an analytic workspace in any of the following attachment modes:

• Read-only: Users can make private changes to the data in the workspace to perform what-if analysis but cannot commit any of these changes. Any number of users can be attached in Read Only mode.

• Read/write access mode: Only one user can have an analytic workspace open in read/write at a time. The user has to commit either all or none of the changes made to the workspace.

• Read/write exclusive access mode: The read/write exclusive attach mode is not compatible with any other access modes. A user cannot attach an analytic workspace in read/write exclusive mode when another user has it attached in any mode. Only one user can have an analytic workspace open in read/write exclusive at a time. The user has to commit either all or none of the changes made to the workspace.

• Multiwriter access mode: An analytic workspace that is attached in multiwriter mode can be accessed simultaneously by several sessions. In multiwriter mode, users can simultaneously modify the same analytic workspace in a controlled manner by specifying the attachment mode (read-only or read/write) for individual variables, relations, valuesets, and dimensions.

For more information on the various attachment modes, see the syntax and notes for the AW ATTACH statement.