Index example: Ordering with ALWCPYDTA(*OPTIMIZE) and a unique-weight sort sequence table
Ordering with ALWCPYDTA(*OPTIMIZE) and a unique-weight sort sequence table (SRTSEQ(*LANGIDUNQ) LANGID(ENU)).
SELECT * FROM STAFF
WHERE JOB = 'MGR'
ORDER BY JOB
When using the OPNQRYF command, specify:
OPNQRYF FILE((STAFF))
QRYSLT('JOB *EQ ''MGR''')
KEYFLD(JOB)
SRTSEQ(*LANGIDUNQ) LANGID(ENU)
ALWCPYDTA(*OPTIMIZE)
The system can use either index HEXIX or index UNQIX for selection. Ordering is done during the sort using the *LANGIDUNQ sort sequence table.