LINC Programming Reference Manual - Public Support Login - Unisys

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Variant Summary of Function
DETERMINE; (DT) Commands
DETERMINE; EVERY Creates a loop in which all records that match specified values are
read in order from a Profile
DETERMINE; FROM Creates a loop in which all records are read that are greater than or
equal to specified values
DETERMINE; GROUP Creates a loop in which all data are read, between specified start and
end values, from a Profile. The order is specified as part of the
command
DETERMINE; LAST Reads a single record equal to or lower than the values specified
DETERMINE; TOTAL Reads through a Profile in order and, where the Profile Ordinates
match the specified values, accumulates a nominated data item
An END; command must terminate the loop created by all variants except DETERMINE;
LAST and DETERMINE; TOTAL. The logic contained in the loop is executed for each
record read.
Setting of GLB.STATUS
If a DETERMINE; command fails to retrieve any record (that is, no record satisfies the
specified criteria), GLB.STATUS is set to *****. If any record is retrieved, GLB.STATUS
will not be set by the DETERMINE; command. GLB.STATUS is not set when end-of-file is
detected.
The contents of GLB.STATUS should always be checked after a DETERMINE; command
or, if a loop is created, after the END; or END.EXIT; command for that loop. GLB.STATUS
is cleared (set to spaces) before the command is executed.
You can direct the new value of GLB.STATUS resulting from the DETERMINE; command
to another data item, by including the GLB.STATUS; command. This is especially useful
where many commands may set GLB.STATUS (for example, where there are nested
DETERMINE; commands).
Logically Deleted Records
Logically deleted records are brought into memory by DETERMINE; commands (unless
they are specifically excluded by the Profile conditions). If you wish to ignore them you
have to code your logic to bypass them.
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