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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: 1. checksum bit
Up: Root-element
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Betti Österholz
2013-02-13