SOR$BEGIN_SORT

   The SOR$BEGIN_SORT routine initializes a sort operation by
   opening input and output files and by passing the key information
   and any sort options.

   Format

     SOR$BEGIN_SORT  [key_buffer] [,lrl] [,options] [,file_alloc]

                     [,user_compare] [,user_equal] [,sort_process]

                     [,work_files] [,context]
 

Additional information available:

Returns         Arguments       Description     Condition_Values_Returned