This document covers the following topics:
See also section VSAM in the Predict and Other Systems documentation.
Note:
Parameters not listed below are described in other sections of this
documentation: Parameters common to all object types, for example Keys, are
described under Global
Attributes. Parameters common to all file types, for
example Literal name, are described under
Common File
Attributes. See also
Common
Parameters for SQL File Types.
| Parameters | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Sequence field |
The descriptor to be used by Natural for logical sequential reading. Determines the sequence in which records are delivered by the
The function Generate DDM uses this attribute as the default
|
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| VSAM attributes | |||||||||
| VSAM DD name | This parameter refers to a DD card in batch mode, or to a CICS FCT object. See the Natural Operations documentation. | ||||||||
| VSAM file org |
|
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| Compressed file |
|
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| Numeric zones | Valid entries are C and F. This field affects the representation of positive numbers in packed decimal format. The sign position holds hexadecimal C or F respectively. | ||||||||
| Location | |||||||||
| Volume 1 - 5 | The volume(s) on which the file is located. Up to five volumes can be specified. | ||||||||
| Data set attributes | |||||||||
| CI size - Data | The data control interval size. | ||||||||
| CI size - Index | The control interval size for the primary index. | ||||||||
| Recsize - Min | The minimum record size. | ||||||||
| Recsize - Max | The maximum record size. | ||||||||
| Free space | The free space to be allocated (in percent). | ||||||||
Note:
Parameters not listed below are described in other sections of this
documentation: Parameters common to all object types, for example Keys, are
described under Global
Attributes. Parameters common to all file types, for
example Literal name, are described under
Common File
Attributes. See also
Common
Parameters for SQL File Types.
| Parameters | |
|---|---|
| VSAM prefix |
Only applicable to files of types L and R. If this field is left blank, the last 3 digits of the file number are taken as the prefix. Otherwise, a string of up to 20 characters can be specified. The records in the corresponding physical VSAM file (type V) whose primary keys begin with the specified prefix string will be considered as belonging to the logical VSAM file. The length of the primary key specified for the logical VSAM file must be equal to the length of the primary key specified for the physical VSAM file minus the length of the prefix. A dummy field (corresponding to the prefix) preceding the primary key in the logical VSAM file must be defined for the field offsets to be calculated correctly. |
| Sequence field |
The descriptor to be used by Natural for logical sequential reading. Determines the sequence in which records are delivered by the
The GENERATE DDM function will use this field as the default
|
