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Preparing Control Information › File Management Table › Examples

Examples

The following tables show the required FMT statements used for VSAM KSDS, VSAM ESDS, VSAM RRDS, and VSAM PATH.

VSAM KSDS

In a sample employee database, the required FMT statements for a VSAM KSDS and the corresponding LISTCAT description might be as follows:

FMT statements

LISTCAT description

FMT NAME IS EMPFMT

 

FILE TYPE IS KSDS

INDEXED

KEY LENGTH IS 44

KEYLEN----------------44

KEY POSITION IS 0

RKP------------------------0

VSAM RECORD LENGTH IS 805

MAXLRECL------------805

FILE IS NOT REUSABLE

NOREUSE

RECORD NAME IS EMPLOYEE

 

SET NAME IS EMP-NDX

 

VSAM ESDS

The required FMT statements for a VSAM ESDS and the corresponding LISTCAT description might be as follows:

FMT statements

LISTCAT description

FMT NAME IS DEPFMT

 

FILE TYPE IS ESDS

NONINDEXED

VSAM RECORD LENGTH IS 17

MAXLRECL-------------17

FILE IS REUSABLE

REUSE

RECORD NAME IS DEPARTMENT

 

SET NAME IS DEPT-NDX

 

VSAM RRDS

The required FMT statements for a VSAM RRDS and the corresponding LISTCAT description might be as follows:

FMT statements

LISTCAT description

FMT NAME IS EXPFMT

 

FILE TYPE IS RRDS

NUMBERED

RELATIVE RECORD NUMBER POSITION IS 9

 

VSAM RECORD LENGTH IS 9

MAXLRECL-------------9

RECORD NAME IS EXPERTISE

 

SET NAME IS EXP-NDX

 

VSAM PATH

The required FMT statements for a VSAM PATH and the corresponding LISTCAT description might be as follows:

FMT statements

LISTCAT description

FMT NAME IS MGTFMT

 

FILE TYPE IS PATH

 

BASE CLUSTER IS KSDS

 

KEY LENGTH IS 8

KEYLEN----------------8

KEY POSITION IS 5

RKP----------------------5

VSAM RECORD LENGTH IS 17

MAXLRECL-----------17

FILE IS REUSABLE

REUSE

RECORD NAME IS EMPLOYEE

 

SET NAME IS MANAGES-NDX