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Data Analysis for Database Design, 3rd Edition
book

Data Analysis for Database Design, 3rd Edition

by David Howe
May 2001
Intermediate to advanced content levelIntermediate to advanced
336 pages
14h 36m
English
Butterworth-Heinemann
Content preview from Data Analysis for Database Design, 3rd Edition
will replace the contents of DEPT-NAME in the current record of the record type with
the contents of DEPT-NAME in the DEPT record area. The MODIFY statement may
specify a record name, or a list of data item names associated with the same record.
If the keyword MODIFY is used on its own, it references the current record of the
run unit.
$ 'HOHWLQJUHFRUGV
The ERASE statement deletes one or more records from the database. The effect of
ERASE is complicated by the fact that the record to be erased may own member
records, in which case the DBMS needs to know whether it should erase the owner but
leave the members, or erase the member records along ...
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Publisher Resources

ISBN: 9780750650861