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ABAP Performance and Tuning - ABAP Development - SCN Wiki
September 10, 2015 at 12:39:49 PM GMT+2 - permalink -SORT BY plutôt que ORDER BY
INNER JOIN is your friend (plutôt que FOR ALL ENTRIES)
UP TO 1 ROWS plutôt que SINGLE-
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http://wiki.scn.sap.com/wiki/display/ABAP/ABAP+Performance+and+Tuning#ABAPPerformanceandTuning-Whichisthebetter-JOINSorSELECT...FORALLENTRIES...?