Critical. The indicated required keyword was missing for the indicated control statement as follows:

• For a JOINKEYS statement, FILE=F1, FILES=F1, FILE=F2, FILES=F2, F1=ddname or F2=ddname must be specified.
• For a JOINKEYS statement, FIELDS must be specified.
• For a JOIN statement, UNPAIRED must be specified.
• For a REFORMAT statement, FIELDS must be specified.