If you have Auto-Clear turned on (see figure 5.24),
Figure 5.24: Setting the Auto-Clear option
nxqddb will automatically clear the entries when you save your entry. The Auto-Clear menubutton will have a red square when the option is turned on.
In most cases, you'll want to have Auto-Clear turned on. However, if most of the information is duplicated among your entries, you'll likely want to turn Auto-Clear off so that you can save some typing.
The best way to see how Auto-Clear works is to try adding records with (1) Auto-Clear turned on and then with (2) Auto-Clear turned off and observe the different behavior.