The APPDATE command allows you to control the operation of date and time oriented User Language $functions, in the following two ways:
- You can specify a system-wide or user-level
clock that is used to obtain date and time values for User Language
For application testing, this is preferred to the Model 204 SYSDATE parameter, which is much less flexible and which
greatly complicates the ability to do things such as share procedure
files or read-only data files in the testing environment.
The APPDATE command affects only date and time oriented User Language $functions; it does not affect any other date or time in the Model 204 environment.
- You can use the DATE_ERR clause to
set switches that control the default system behavior when errors are
encountered in date and time oriented User Language $functions.
The choices are to produce an error message along with request
cancellation, produce a warning message, or silently continue with
This control is available at the system and user level, and you can also set it for the duration of a User Language request by using the $Sir_Date_Err function. At the system and user level, you can also control whether procedure names and line numbers are available for error messages.
The Sir2000 APPDATE command has detailed information about the APPDATE command.