Full and Incremental Modes

Data extract behavior in Full mode and Incremental mode is the following:

• Full mode: When DX runs in full mode, if the study account exists, it is dropped and recreated with the recreated view text for all the DCMs and view definition of the study. The whole view is recreated with the latest view definition defined for the DCM.

• Incremental mode: When DX runs in incremental mode, the view is updated with incremental changes from the last run. The study specific accounts remain as they are and just the view incremental changes in view definition configuration are changed.

The two modes handle view maintenance as follows:

• Updating the View Templates linked to DCMs. Incremental mode updates only views that have been modified since the last job. Full mode updates all views. They both report the total number of linked DCMs fetched.

  Generating view text from view structures created using the View Builder. Only full mode does view text generation. Incremental mode does not do text generation at all.

  Maintains Study Access Accounts. This step includes activities such as creating, deleting accounts, and assigning privileges to the roles set under View Definition. Both modes loop through all accounts being maintained. Full mode drops and recreates the account, but incremental mode only grants Select, Connect, and Create type privileges to the account.

Both modes do the following tasks for all records:

• Creating views when view creation is specified for the View Definition and Access Account

• Creating tables when table creation is specified for the View Definition and Access Account

• Creating union views in Study Set Access Accounts

• Creating union views in Study Access Accounts