FC Convert a File to another format

opt IK | EK | NA

IK Insert Keys: ISAM keys for the output file records are generated by CFS. These keys can also be generated for SAM files by specifying the IK option. In this case, the output record will contain an 8 digit sequence after the record length field.

Standard: no IK, i.e. the ISAM key is contained within the file to be converted. If this ISAM key is not in ascending sequence, then the option NA(Non Ascending keys; see below) must be specified.

EK Eliminate Keys: The ISAM keys present in the input file will be stripped from the records in the output file. If the input file is not an ISAM file, then the EK option has no effect.

Standard: no EK, i.e. when converting ISAM input files, the keys are not stripped out.

NA Non Ascending Keys: When converting to an ISAM file, the input file contains the data for the ISAM keys. These, however, are not in ascending order, and so CFS has to use the ISAM macro STORE, instead of PUT. The NA option results in, amongst other things, the input records being sorted.

Standard: no NA. A non-ascending key area in the input file will cause a DVS error.