SORT?MAN1?BY?HIGH?WEIGHT?DESCENDING.

與

SORT?MAN1?DESCENDING?BY?HIGH?WEIGHT.

的效果是不一樣的。

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. ?

結(jié)論：

SORT?MAN1?BY?HIGH?WEIGHT?DESCENDING.--------------------只有WEIGHT?字段是降序，其他字段還是默認的升序

SORT?MAN1?DESCENDING?BY?HIGH?WEIGHT.--------------------BY后面所有的字段都是降序

多個字段排序，字段在前面的優(yōu)先排序

總結(jié)

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