The database maintenance view is shown in Figure 141. Using this view, you can clear records and delete complete histories from your history database. Select the database maintenance view by selecting the history space node in the nav sidebar and using the view selector menu or the popup menu to choose the database maintenance menu item.
The left side of the histories area contains the available histories window. This window displays all histories that are available in your local station or any station histories that you import by means of the Niagara network or other network driver (for example, BacnetNetwork). Histories are grouped under the station by station name.
The available histories are the same histories that are displayed under the history space node in the nav sidebar.
The right side of the histories area contains the targeted histories window. This window displays the histories that are affected when you click the button. Move the histories that you want manage into this window using the control buttons, as described below:
Controls and options for the database maintenance view are described in the following list:
-
Add history button (right arrow)
Click this button to move histories that are selected in the available histories window to the targeted histories window.
-
Remove history button (left arrow)
Click this button to move histories that are selected in the targeted histories window to the available histories window.
-
Clear Old Records option
Select this option and use the Before date selector to remove records, based on date, from the histories that are in the targeted histories window.
-
Before date field
Use this field with the
Clear old recordsoption to set the year, month, day, and time parameters that you want to use for removing old records. -
Clear all records
Select this option to delete all records from the selected history database.
-
Delete Histories
Select this option to delete all histories that are in the targeted histories window.
-
Run Maintenance button
Click this button to execute the option that you have selected on the histories in the targeted histories window.