The current date.
$date
A number in date format (YYYYMMDD). Cannot be reset by an application program.
The current date, as set in the operating system.
From the zim prompt:
out $date
This extracts the DATE from the TIMESTAMP and then prints the proper $DayName.
OUT $DayName($GetUTCDate($TimeSecs))
These system variables have been removed from the Zim syntax and are replaced by WINDOW STATUS.
Indicates if the application user has pressed the “break” key.
$breakflag
Binary. Can be reset by an application program.
At the start of an application session, $BreakFlag is set to “0” ($False). Set to “1” ($True) if the application user presses the “break” key. The application program must reset the variable to “0” ($False) to be able to detect subsequent user interrupts.
The number of records processed by the most recent set-processing command.
$membercount
A number. Can be reset by an application program.
The number of records processed by the most recent set-processing command.
The number of records found by the last FIND command.
$setcount
A number. Can be reset by an application program.
The number of records in the result set produced by the most recent FIND command.
find Students where GradePt = 4.00
Produces a set of Students whose GradePt is 4.00. If the set contains three students whose grade point average is 4.00, then $SetCount would be set to 3.
File system path to the application user’s work directory (specified in a Zim configuration file).
A character string. Cannot be reset by an application program.
The current work path as specified in the configuration file.
To indicate the current WorkPath directory in a file name, start the name with a close parenthesis ( ) ) character.
The current time.
$time
A number. Cannot be reset by an application program.
The current time (format: HHMMSSTT, 24-hour notation), as set in the operating system.
Some operating systems provide time only to the nearest second. In such cases, the TT (ticks) portion of the time is always set to 00.
The error code generated by the last command executed.
$errcode
A number (0 to 9999.) Can be reset by an application program.
Indicator of success (0) or a reason (1 to 9999) for the failure of the most recently executed command.
Explanations for many error codes are contained in the ErrorHelp entity set, which you can access from your database application using the DESCERR or EXPLERR utility program.
The error message generated by the last command that returned an error code.
$lasterrmessage
A character string. Can be reset by an application program.
$Null at the beginning of each application session. The value changes only if an error occurs, or if the application program explicitly assigns a value.
When non-$Null, the variable represents, for the current session, the software message generated for the most recently executed command that returned an error code.
The current user’s operating system user ID.
$userid
A number, or $Null. Can be reset by an application program.
The current user’s operating system user ID; otherwise, $Null.
You can use the $UserID and $GroupID system variables to build levels of security into your applications.
During any Zim session, you can LOGIN under any defined UserName (in EntitySet Users). $ZUserID and $ZGroupID are then set to the UserID and GroupID associated with UserName; $UserID and $GroupID (containing values taken from the operating system) are still available for use.
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