Equals selection with no sort sequence table (SRTSEQ(*HEX)).
SELECT * FROM STAFF
WHERE JOB = 'MGR'
When using the OPNQRYF command, specify:
OPNQRYF FILE((STAFF))
QRYSLT('JOB *EQ ''MGR''')
SRTSEQ(*HEX)
DB2 UDB for AS/400 could use either index HEXIX or index UNQIX.