SSL Population
U929-J-Z125-9-76 137
Dokuschablonen 19x24 Version 7.3us für FrameMaker V7.x vom 14.02.2007 © cognitas GmbH 2001-2007 24. Oktober 2007 Stand 08:58.55 Pfad: G:\vogt\fsc\ud s\Manuale\en\udsent_e\uds ent.k05
Note, however, that UDS/SQL always creates only as many DBTT pages as required for the
DBTT and that, depending on the database page length, a maximum of 224-1 or
224- 216- 1 (=16711679) or 231-1 entries per DBTT can be administered. S ince a DBTT
base can only be created in whole pages and a DBTT extent only in DBTT extent size (128
PAM pages), an excess amount is usually created if the maximum values are specified. This
excess amount is not used.
The DBTT can be extended by means of the BREORG utility routine (see the "Recovery,
Information and Reorganization" manual, BREORG).
By default, UDS/SQL reserves one page for a DBTT.
If a secondary key has been defined for a record type for conversion by a hash routine, the
size specification for the DBTT also affects the initial size of the hash area (see the section
“Size of a hash area for the primary key” on page 138).