ABAP SORT
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SORT MAN1 BY HIGH WEIGHT DESCENDING.
与
SORT MAN1 DESCENDING BY HIGH WEIGHT.
的效果是不一样的。
- REPORT YTEST20160527.
- DATA:BEGIN OF MAN,
- NAME(20) TYPE C,
- HIGH TYPE P DECIMALS 2,
- WEIGHT TYPE P DECIMALS 2,
- END OF MAN.
- DATA: MAN1 LIKE HASHED TABLE OF MAN WITH UNIQUE KEY NAME.
- MAN-NAME = 'JAY'.
- MAN-HIGH = '1.68'.
- MAN-WEIGHT = 120.
- INSERT MAN INTO TABLE MAN1.
- MAN-NAME = 'ADOLF'.
- MAN-HIGH = '1.69'.
- MAN-WEIGHT = 100.
- INSERT MAN INTO TABLE MAN1.
- MAN-NAME = 'BABO'.
- MAN-HIGH = '1.70'.
- MAN-WEIGHT = 130.
- INSERT MAN INTO TABLE MAN1.
- LOOP AT MAN1 INTO MAN.
- WRITE:/ MAN-NAME,MAN-HIGH,MAN-WEIGHT.
- ENDLOOP.
- SORT MAN1 BY HIGH WEIGHT DESCENDING.
- SKIP.
- ULINE.
- LOOP AT MAN1 INTO MAN.
- WRITE:/ MAN-NAME,MAN-HIGH,MAN-WEIGHT.
- ENDLOOP.
- SORT MAN1 DESCENDING BY HIGH WEIGHT.
- SKIP.
- ULINE.
- LOOP AT MAN1 INTO MAN.
- WRITE:/ MAN-NAME,MAN-HIGH,MAN-WEIGHT.
- ENDLOOP.
结论:
SORT MAN1 BY HIGH WEIGHT DESCENDING.--------------------只有WEIGHT 字段是降序,其他字段还是默认的升序
SORT MAN1 DESCENDING BY HIGH WEIGHT.--------------------BY后面所有的字段都是降序
多个字段排序,字段在前面的优先排序
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