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Optional information fields

At this point a 16-bit fild stands, whose bits indicate the presence of optional information fields in the root-element.


The individual bits (counting starts with 1) switch the following information fields:

1
checksum (see section 21.2.2 on page [*])
2
multimedia information (see section 21.2.3 on page [*])
3
domains (see section 21.2.4 on page [*])
4
input variables (see section 21.2.5 on page [*])
6
the sub-root-objects (see section 21.2.7 on page [*])
7
identifiers of used database objects (see section 21.2.8 on page [*])
8
optional part (see section 21.2.9 on page [*])
 $$
bits 9 till 15 have not been established and are available for future use
16
additional optional fields, indicated by a following 64-bit field for additional optional information fields

The following section describes the individual bits, when they are used and their impact.



Subsections
next up previous contents index
Next: 1. checksum bit Up: Root-element Previous: Root-element   Contents   Index
Betti Österholz 2013-02-13