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KSAM files are accessed from BASIC/V programs through calls
to a set of input/output procedures. These procedures allow you
to open, write records to, read records from, update and delete
records, position, lock, unlock, and close KSAM files.
A KSAM file must already exist before it can be accessed from
a BASIC/V program. The BASIC/V procedures for accessing KSAM files
do not provide a means to create a KSAM file.
The BASIC/V procedures to access KSAM files perform input/output
activities differently from the BASIC/V input/output commands. The
KSAM procedures read and write records in their entirety. Once part
of a record has been read or written by one of the KSAM file access
procedures, the entire record has, in actuality, been read or written.
A subsequent call will access another record.
Character substrings are expressions when used in the BASIC/V
KSAM procedures. As such, no values can be returned to them. A copy
of the substring is passed as the actual parameter.
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