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SSL Calculation formulas
U929-J-Z125-9-76 177
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\uds\Manuale\en\udsent_e\udsent.k05
5.7 Formulas for calculating the storage space requirements for
records and tables
The storage space requirement for records varies depending on whether they are stored in
a direct hash area, whether an indirect hash area is set up for them and which type of
connection has been specified for them. table 10 and table 11 contain formulas to calculate
the storage space requirement. These formulas differ, depending on whether the page
length of the database is 2048 bytes, 4000 bytes or 8096 bytes.
Calculation formulas for a database with a 2048-byte page length
Number of records
in the data page
2028
record length
1
+8
in the direct CALC page
2018
record length+key length+15
Number of entries in the indirect CALC page
2018
key length+7
Number of table
entries per page in a:
List
2002
key length+8
pointer array
2
sort key table
3
SEARCH key table
(TYPE IS REPEATED-KEY)
2002
key length+7
Table 10: Calculation formulas for a database with a 2048-byte page length