CASE segment type format
The IMS catalog CASE segment type contains information about a specific case for a mapping of an IMS database segment.
- Segment name
- CASE
- Parent name
- MAP
- Sequence field
- CASESEQ
- Segment length
- 656 bytes
| Offset (bytes) | Length (bytes) | Data type | Field name | Description | Unique key field | |
|---|---|---|---|---|---|---|
| 1 | 2 | X | LEN | Length of this segment | ||
| 3 | 2 | X | CTL | Control field | ||
| 5 | 2 | X | CASESEQ | Sequence field, type = U | X | |
| 5 | 2 | X | SEQNUM | Sequence number | ||
| 7 | 2 | C | FILLER | Reserved | ||
| 9 | 1 | C | CASETYPE | The encoding type of the CASEID field. This field specifies either C for Cp1047 EBCDIC encoding or X for a hexadecimal binary representation. | ||
| 10 | 7 | C | FILLER01 | Reserved | ||
| 17 | 128 | C | CASENAME | The name of this case | ||
| 145 | 128 | C | FILLER02 | Reserved | ||
| 273 | 128 | C | MAPNAME | Name of the segment type mapping that this case belongs to | ||
| 401 | 256 | C | CASEID | The unique identifier for this case. Interpret this field based on the value of the CASETYPE field. | ||