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N_XERRLVL()
Set RaSQL/B error handling mode

Syntax
N_XERRLVL([<nLevel>])

Argument
<nLevel> defines how RaSQL/B handles errors. If the argument is omitted, 
errorhandling defaults to Level 1.

Level     Meaning
   0           No error messages are displayed.
   1           Error messages are displayed on line 0 with the message Quit/ 
               Continue? This is most useful for debugging.
   2           Error messages are written to the STDOUT device. This permits 
               maintaining an error log if the EXE is started from DOS (or a 
               BAT file) with console redirection. For example,
                    MYAPP > error.log
   3           Both 1 and 2

Returns
Current error level setting.

Remarks
N_XERRLVL() can be set at any time, even before N_XLOGIN().

Example
* Suppress error displays for
* one statement
N_XERRLVL(0)
N_XUSE('patients ...)
N_XERRLVL(1)