LINC Programming Reference Manual - Public Support Login - Unisys

System Data Item Descriptions
Date conversion from a relative day number to a date format (using the FORMAT; option
of the DATE.CONVERT; command) updates GLB.CENTURY.
The value of GLB.CENTURY is changed to the current century by complex
DATE.CONVERT; commands if you entered Y in the DC; sets GLB.CENTURY field on
the Primary Specification Options screen. If you entered N, GLB.CENTURY is not changed
by the DATE.CONVERT; command.
See also GLB.DC-CC and GLB.CENTURY-START.
LENGTH = 2 EDIT = N
GLB.CENTURY-START
GLB.CHANGE
Use GLB.CENTURY-START in conjunction with the DATE.CONVERT; command to define
how six digit dates (those without an explicit century) are to be interpreted.
GLB.CENTURY-START defines the first year of a 100 year period, and all six digit dates are
interpreted as being in that period.
By default, GLB.CENTURY-START is set by the SCENTURYnnnn Supervisor command. If
it is not set, GLB.CENTURY-START is the same value as GLB.BASE.
GLB.CENTURY-START is restored to its default value at the start of PreScreen logic.
See also GLB.CENTURY, GLB.BASE, GLB.DC-CC, and the DATE.CONVERT; command.
LENGTH = 4 EDIT = N
GLB.CHANGE is a read-only System data item you use in conjunction with the
ON.CHANGE; command in Reports. It contains the name of the data item whose change in
value invoked the printing of a current heading or footing. See ‘‘ON.CHANGE (OCH)’’ in
this manual for further details.
LENGTH = 30 EDIT = A
GLB.CHARGECODE
Note: This System Data item is valid for an MCP based LINC System only.
GLB.CHARGECODE defines the chargecode to be used with the RUN; and START; logic
commands on an MCP based LINC System. It can be used in Reports to access the
chargecode used to run the Report.
GLB.CHARGECODE is ignored if the :COD LINC System command is set to 0.
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