You can set how you want references to update.
To set reference update preferences:
Select Window|Preferences from the main menu bar.
The Preferences dialog box appears.
Expand Sybase, Inc in the left pane.
Select Reference Update.
The Reference Update dialog box appears in the right pane.
Click to open the Update drop-down and select one of the following:
Ask
Never
Always
Click OK.
The dialog box closes and the reference update is set.
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