DARE TO BE DIFFERENT (AGAINST ALL DOGMAS) Armando J. Arranja Series Finale

DB2 UP AND RUNNING

DON’T SPEND MONEY

HELP DEVELOPERS

TUNE SQL

UNLOAD LOAD REORG

SELECT DISTINCT A.COL1, B.COL2, C.COL3 FROM T003 A INNER JOIN ORG_D B ON A.COD = B.ORG LEFT OUTER JOIN T010_CLI C ON A.N = C.N AND C.COD_TIP_AL ='R' 30 minutes UNLOAD

DFSORT //SYSIN DD * JOINKEYS F1=INFILE1,FIELDS=(1,9,A) JOINKEYS F2=INFILE2,FIELDS=(1,9,A) REFORMAT FIELDS=(F1:1,21) SORT FIELDS=(1,12,A),FORMAT=CH SUM FIELDS=(13,9),FORMAT=PD /* //SYSIN DD * JOINKEYS F1=IN1,FIELDS=(1,12,A) JOINKEYS F2=IN2,FIELDS=(1,12,A) JOIN UNPAIRED,F1 REFORMAT FIELDS=(F1:1,21,F2:13,9,F2:23,9) OPTION COPY /* INNER JOIN LEFT OUTER JOIN

UNLOAD B UNLOAD C SORT (INNER JOIN) SORT (LEFT OUTER JOIN) UNLOAD A

UNLOAD C UNLOAD A 30 minutes 5 minutes UNLOAD B UNLOAD C SORT (INNER JOIN) SORT (LEFT OUTER JOIN) UNLOAD A

OPEN FETCH SELECT CLOSE 2 hours

OPEN FETCH SELECT CLOSE SELECT 200 M1 M seconds X + 2 HOURS !!!

SORT JOIN UNLOAD LOAD 30 MINUTES

OPEN FETCH SELECT CLOSE SELECT seconds X 2 MINUTES !!!

THE END DARE TO BE DIFFERENT (AGAINST ALL DOGMAS)

March 2013