Download OpenOffice.org OpenOffice - 3.3 Getting Started Guide
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Figure 177: Changing field types If any of these fields requires an entry, set Entry required to Yes. An entry with that field blank will then not be allowed. In general, only set Entry required to Yes if something must always be put in that field. By default, Entry required is set to No. Note • CollectionID: Change AutoValue from No to Yes. • AlbumTitle: – Entry required: Leave Entry required as No, unless all of your music is in albums. – Length: Unless you have an album title that exceeds 100 characters counting the spaces, do not change the length. Note In Base the maximum length of each field must be specified on creation . It is not easy to change this later, so if in doubt specify a greater length. Base uses VCHAR as the field format for text fields. This format only uses the actual number of characters in a field up to the limit set. So, a field containing 20 characters will only use space for 20 characters even if the limit is set at 100. Two album titles containing 25 and 32 characters respectively will use space for 25 and 32 characters and not 100 characters. • Artist: Use the Default setting. And since music has artists, set Entry Required to Yes. • Date Purchased: Field type: default date setting. Entry required should be No. (You may not know the date.) • Format: Only change the Entry Required setting: from No to Yes. • Notes: No changes are required. • NumberofTracks: Change the Field Type to Tiny Integer [TINYINT]. Your allowable number of tracks will be 999. Small Integer [SMALLINT] would allow 99999 tracks if you needed more than 999 tracks. • Photo: Use the default settings. When you have finished, click Next. Chapter 8 Getting Started with Base 207