SORT CASES with Other Procedures (SORT CASES command)

In AGGREGATE, cases are sorted in order of the break variable or variables. You do not have to use SORT CASES prior to running AGGREGATE, because the procedure does its own sorting.
You can use SORT CASES in conjunction with the BY keyword in ADD FILES to interleave cases with the same variables but from different files.
With MATCH FILES, cases must be sorted in the same order for all files that you combine.
With UPDATE, cases must be sorted in ascending order of the key variable or variables in both the primary file and all transaction files.
You can use the PRINT command to check the results of a SORT CASES command. To be executed, PRINT must be followed by a procedure or EXECUTE.