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File/Record Type Description Statement

The file/record type description statement describes the characteristics of the DBOMP file and names the CA IDMS/DB record type to which it corresponds. There must be one file/record type description statement for each DBOMP file referenced by the bridged program.

This statement must be followed by a pointer/set relationship statement for each pointer that is established for the record type and that is to be passed to the calling program by the database procedure.

►►─── IMBS RECNAME=(dbomp-file-name,idms-record-type-name) ───────────────────►

 ►─── ,TYPE= ─┬─ M ─┬─ ,KEYL=key-length ──────────────────────────────────────►
              ├─ C ─┤
              └─ S ─┘

 ►─── ,LRECL=record-length ───────────────────────────────────────────────────►◄

IMBS

Constant; Code anywhere after column one.

dbomp-file-name

Specifies the 7-character name of the DBOMP file.

idms-record-type-name

Specifies the name of the corresponding CA IDMS/DB record type as it appears in the subschema.

TYPE=

Specifies the type of DBOMP file.

M

Master file

C

Chain file linked to more than one master file; note that if C is specified, the corresponding record type must have next, prior, and owner pointers.

S

Chain file linked to only one master file; any file/record type description statement specifying TYPE=S must be preceded by a file/record type description statement for the master file to which it is linked.

KEYL=key-length

Specifies the length of the record key as it is specified in the work area prefix of the DBOMP file. Key-length must be between 0 and 256; specify 0 for all chain files except those with product-structure characteristics where the master-record key length is used.

LRECL=record-length

Specifies the length, in bytes, of the record as it appears on the DBOMP record layout. The length of the work area prefix should not be included in this value.