SOR$BEGIN_MERGE

   The SOR$BEGIN_MERGE routine initializes the merge operation by
   opening the input and output files and by providing the number of
   input files, the key specifications, and the merge options.

   Format

     SOR$BEGIN_MERGE  [key-buffer] [,lrl] [,options] [,merge_order]

                      [,user_compare] [,user_equal] [,user_input]

                      [,context]
 

Additional information available:

Returns         Arguments       Description     Condition_Values_Returned