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SQL语句优化（雷人代码）

SQL语句优化（雷⼈代码）

倒悬牵引床

维护组项⽬出了点问题，打开⽹站越慢，部门⼏个⽼员⼯在原因，发现⼀条SQL语句，我看到没把我雷死。

原代码：

代码

1select top16 goods_id,goods_name,goods_thumb,integral,cat_id from

2 goods where goods_id>0and cat_id=40and is_real=1and area in('000','0514')

3AND goods_name not like'%B30（2G）纽曼MP3%'and goods_name not like'%IPOD⾳箱%'

4and goods_name not like'%SP-8210 史努⽐旋风吹风机%'and goods_name not like'%zippo打⽕机150ZL%'

5and goods_name not like'%ZIPPO打⽕机205%'and goods_name not like'%zippo打⽕机280AW陆军空战银章%'

6and goods_name not like'%爱国者⾳箱SP-F021%'and goods_name not like'%爱国者⾳箱SP-F027%'

7and goods_name not like'%铂⾦多⽤汤锅DFS-T012%'and goods_name not like'%不锈钢快速⽔壶OL-209%'

8and goods_name not like'%不锈钢快速⽔壶OL-215%'and goods_name not like'%不锈钢密封碗三件套%'

9and goods_name not like'%彩棉浴⼱%'and goods_name not like'%超⼈电吹风SB80%'

10and goods_name not like'%超⼈电须⼑SA35%'and goods_name not like'%超⼈电须⼑SA850%'

11and goods_name not like'%超⼈电熨⽃SY570%'and goods_name not like'%超⼈⽑球修剪器SR2855%'

土豆切丝机12and goods_name not like'%超⼈剃须⼑SA2701%'and goods_name not like'%超⼈拓威⼲鞋机TH151%'

13and goods_name not like'%厨具⼗⼋件套CQG1518%'and goods_name not like'%春笑牌USB蓝鲸电暖⼿⿏标垫%'

14and goods_name not like'%春笑牌USB维尼熊电暖⼿⿏标垫%'and goods_name not like'%春笑牌USB喜洋洋电暖⼿⿏标垫%'

15and goods_name not like'%德世朗多功能蒸煮锅%'and goods_name not like'%迪⼠尼保温泡菜壶%'

16and goods_name not like'%迪⼠尼抽真空保温杯%'and goods_name not like'%迪⼠尼幸运草随⼿杯%'

17and goods_name not like'%冬暖复合被%'and goods_name not like'%都彭⽜⽪⽪带8818C289%'

18and goods_name not like'%都彭⽜⽪⽪带8881C055%'and goods_name not like'%都彭⽜⽪钥匙包8855B020-4%'

19and goods_name not like'%哆啦A梦便利收纳箱%'and goods_name not like'%哆啦A梦⼤容量真空保温杯%'

20and goods_name not like'%哆啦A梦红酒瓶⾬伞(黄)%'and goods_name not like'%哆啦A梦时尚套装礼盒DM-2319%'

21and goods_name not like'%果缤纷（⼑具套装）%'and goods_name not like'%韩式调料缸三件套（22*24*26）%'

22and goods_name not like'%好帮⼿淘⽶器%'and goods_name not like'%红厨铝合⾦煎盘YN0351%'

23and goods_name not like'%吉旺1厘⽆磁钢柄五件套装7162%'

24and goods_name not like'%吉旺3厘⽊纹6件套7191%'and goods_name not like'%康⼽蒸好（微波炉专⽤⼩蒸煲）CQG2004%'

25and goods_name not like'%康⼽SURE不锈钢保温杯%'and goods_name not like'%康⼽秤⼼如意厨房秤%'

26and goods_name not like'%康⼽情侣密封罐CQG5001%'and goods_name not like'%康⼽钛真空保温杯CQG4000%'

27and goods_name not like'%康⼽蒸好（微波炉专⽤⼩蒸煲）CQG2004%'

28and goods_name not like'%康⼽智能卡路⾥电⼦跳绳%'and goods_name not like'%乐扣茶杯HPL934M%'

29and goods_name not like'%乐扣乐扣四⽅型保鲜盒HPL809F%'and goods_name not like'%乐扣乐扣圆型保鲜盒HPL933%'

30and goods_name not like'%乐仕菲斯贝贝乐保温提盒RSC1000K%'

31and goods_name not like'%乐仕菲斯单柄奶锅RS1600K%'and goods_name not like'%乐仕菲斯优乐套装锅RS201T%'

32and goods_name not like'%绿波仙⼦（补铁绿彩套锅）%'

33and goods_name not like'%欧莱斯特304不锈钢⽆缝内胆⽔壶OL-818橙⾊%'

34and goods_name not like'%欧莱斯特304不锈钢⽆缝内胆⽔壶QL-818%'

35and goods_name not like'%欧然电⽔壶CR-1130%'and goods_name not like'%⽇式环保包袋组合（折叠环保包+爱⼼便当包）%' 36and goods_name not like'%三洋SANYO 煮蛋器 JH702A%'

37and goods_name not like'%三洋SANYO煮蛋器JH702A%'and goods_name not like'%三洋电吹风DH-JH104%'

38and goods_name not like'%三洋电吹风HD-JH101A%'

39and goods_name not like'%三洋电吹风HD-JH104%'and goods_name not like'%三洋电熨⽃A-JH102M%'

40and goods_name not like'%三洋加湿器CFK-JH6013%'

41and goods_name not like'%膳之厨多功能锅CJ-096%'and goods_name not like'%膳之厨锅具两件套CJ-960%'

42and goods_name not like'%膳之厨时尚三件套CJ-3683%'and goods_name not like'%圣德保罗⼯具套装SD-007-C%'

43and goods_name not like'%⼗⼋⼦作⾼级不锈钢家⽤剪WJJ-01%'and goods_name not like'%⼗⼋⼦作开瓶器SC-02%'

44and goods_name not like'%⼗⼋⼦作雅刃六件套⼑S2902%'and goods_name not like'%⼗⼋⼦作银盈快刃斩切⼑S2504-A%'

45and goods_name not like'%时尚折叠凳%'and goods_name not like'%史努⽐故事保鲜盒组SP-A123%'

46and goods_name not like'%史努⽐故事⽔杯SP-A317%'and goods_name not like'%史努⽐酷狗健康称SP-H201%'

47and goods_name not like'%史努⽐酷炫多功能杯SP-A105%'and goods_name not like'%史努⽐亲亲四⼊冷⽔壶SP-A203%'

48and goods_name not like'%史努⽐清凉⼩冰杯SP-A112%'

49and goods_name not like'%史努⽐提⼿杯%'and goods_name not like'%史努⽐幸福双层饭盒SP-C103%'

50and goods_name not like'%史努⽐紫洋保温杯SP-A602%'and goods_name not like'%天飞伞3007%'

51and goods_name not like'%天堂10302E国⾊天⾹伞%'and goods_name not like'%天堂苏印丝伞%'

52and goods_name not like'%西铁城电⼦体温计CT513W%'and goods_name not like'%⾹⼭牌电⼦健康秤EB9003L%'

53and goods_name not like'%⾹⼭牌机械健康秤BR2017B%'and goods_name not like'%⼩天⼦钢柄⼋件套⼑A-019%'

54and goods_name not like'%伊莱特3L电饭煲CFXB30-J31A%'and goods_name not like'%宜剪美%'

55and goods_name not like'%⽻梦情缘被套(简装)%'and goods_name not like'%⽻梦情缘床单(简装)%'

56and goods_name not like'%⽻梦情缘枕套(简装)%'and goods_name not like'%⾬花丝绒毯%'

57and goods_name not like'%蒸功夫蒸汤两⽤锅%'and goods_name not like'%⽵纤维被%'and goods_name not like'%⽵纤维浴⼱%' 58and goods_name not like'%红厨 32cm炫雅雪花不沾炒锅YN0304%'and goods_name not like'%春笑牌烘鞋器（⼤）%'

59and goods_name not like'%欧然不锈钢快速电⽔壶CR-1181 1.2L%'and goods_name not like'%春笑牌烘鞋器（⼩）%'

60and goods_name not like'%史努⽐紫洋保温杯 SP-A602%'and goods_name not like'%欧然不锈钢快速电⽔壶CR-1120 0.8L%'

61and goods_id not in

62 (select top16 goods_id from goods where goods_id>0and cat_id=40and is_real=1and area in('000','0514')

63and goods_name not like'%B30（2G）纽曼MP3%'and goods_name not like'%IPOD⾳箱%'

64and goods_name not like'%SP-8210 史努⽐旋风吹风机%'and goods_name not like'%zippo打⽕机150ZL%'

65and goods_name not like'%ZIPPO打⽕机205%'and goods_name not like'%zippo打⽕机280AW陆军空战银章%'

66and goods_name not like'%爱国者⾳箱SP-F021%'and goods_name not like'%爱国者⾳箱SP-F027%'

67and goods_name not like'%铂⾦多⽤汤锅DFS-T012%'and goods_name not like'%不锈钢快速⽔壶OL-209%'

68and goods_name not like'%不锈钢快速⽔壶OL-215%'and goods_name not like'%不锈钢密封碗三件套%'

69and goods_name not like'%彩棉浴⼱%'and goods_name not like'%超⼈电吹风SB80%'

70and goods_name not like'%超⼈电须⼑SA35%'and goods_name not like'%超⼈电须⼑SA850%'

71and goods_name not like'%超⼈电熨⽃SY570%'and goods_name not like'%超⼈⽑球修剪器SR2855%'

72and goods_name not like'%超⼈剃须⼑SA2701%'and goods_name not like'%超⼈拓威⼲鞋机TH151%'

73and goods_name not like'%厨具⼗⼋件套CQG1518%'and goods_name not like'%春笑牌USB蓝鲸电暖⼿⿏标垫%'

74and goods_name not like'%春笑牌USB维尼熊电暖⼿⿏标垫%'and goods_name not like'%春笑牌USB喜洋洋电暖⼿⿏标垫%'

75and goods_name not like'%德世朗多功能蒸煮锅%'and goods_name not like'%迪⼠尼保温泡菜壶%'

76and goods_name not like'%迪⼠尼抽真空保温杯%'and goods_name not like'%迪⼠尼幸运草随⼿杯%'

77and goods_name not like'%冬暖复合被%'and goods_name not like'%都彭⽜⽪⽪带8818C289%'

78and goods_name not like'%都彭⽜⽪⽪带8881C055%'and goods_name not like'%都彭⽜⽪钥匙包8855B020-4%'

79and goods_name not like'%哆啦A梦便利收纳箱%'and goods_name not like'%哆啦A梦⼤容量真空保温杯%'

80and goods_name not like'%哆啦A梦红酒瓶⾬伞(黄)%'and goods_name not like'%哆啦A梦时尚套装礼盒DM-2319%'

81and goods_name not like'%果缤纷（⼑具套装）%'and goods_name not like'%韩式调料缸三件套（22*24*26）%'

82and goods_name not like'%好帮⼿淘⽶器%'and goods_name not like'%红厨铝合⾦煎盘YN0351%'

83and goods_name not like'%吉旺1厘⽆磁钢柄五件套装7162%'and goods_name not like'%吉旺3厘⽊纹6件套7191%'

84and goods_name not like'%康⼽蒸好（微波炉专⽤⼩蒸煲）CQG2004%'and goods_name not like'%康⼽SURE不锈钢保温杯%'

85and goods_name not like'%康⼽秤⼼如意厨房秤%'and goods_name not like'%康⼽情侣密封罐CQG5001%'

86and goods_name not like'%康⼽钛真空保温杯CQG4000%'

87and goods_name not like'%康⼽蒸好（微波炉专⽤⼩蒸煲）CQG2004%'and goods_name not like'%康⼽智能卡路⾥电⼦跳绳%'

88and goods_name not like'%乐扣茶杯HPL934M%'and goods_name not like'%乐扣乐扣四⽅型保鲜盒HPL809F%'

89and goods_name not like'%乐扣乐扣圆型保鲜盒HPL933%'and goods_name not like'%乐仕菲斯贝贝乐保温提盒RSC1000K%'

90and goods_name not like'%乐仕菲斯单柄奶锅RS1600K%'and goods_name not like'%乐仕菲斯优乐套装锅RS201T%'

91and goods_name not like'%绿波仙⼦（补铁绿彩套锅）%'and goods_name not like'%欧莱斯特304不锈钢⽆缝内胆⽔壶OL-818橙⾊%' 92and goods_name not like'%欧莱斯特304不锈钢⽆缝内胆⽔壶QL-818%'and goods_name not like'%欧然电⽔壶CR-1130%'

生姜去皮机

93and goods_name not like'%⽇式环保包袋组合（折叠环保包+爱⼼便当包）%'

94and goods_name not like'%三洋SANYO 煮蛋器 JH702A%'and goods_name not like'%三洋SANYO煮蛋器JH702A%'

95and goods_name not like'%三洋电吹风DH-JH104%'and goods_name not like'%三洋电吹风HD-JH101A%'

96and goods_name not like'%三洋电吹风HD-JH104%'and goods_name not like'%三洋电熨⽃A-JH102M%'

97and goods_name not like'%三洋加湿器CFK-JH6013%'and goods_name not like'%膳之厨多功能锅CJ-096%'

98and goods_name not like'%膳之厨锅具两件套CJ-960%'and goods_name not like'%膳之厨时尚三件套CJ-3683%'

99and goods_name not like'%圣德保罗⼯具套装SD-007-C%'and goods_name not like'%⼗⼋⼦作⾼级不锈钢家⽤剪WJJ-01%'

100and goods_name not like'%⼗⼋⼦作开瓶器SC-02%'and goods_name not like'%⼗⼋⼦作雅刃六件套⼑S2902%'

101and goods_name not like'%⼗⼋⼦作银盈快刃斩切⼑S2504-A%'and goods_name not like'%时尚折叠凳%'

102and goods_name not like'%史努⽐故事保鲜盒组SP-A123%'and goods_name not like'%史努⽐故事⽔杯SP-A317%'

103and goods_name not like'%史努⽐酷狗健康称SP-H201%'and goods_name not like'%史努⽐酷炫多功能杯SP-A105%'

104and goods_name not like'%史努⽐亲亲四⼊冷⽔壶SP-A203%'and goods_name not like'%史努⽐清凉⼩冰杯SP-A112%'

105and goods_name not like'%史努⽐提⼿杯%'and goods_name not like'%史努⽐幸福双层饭盒SP-C103%'

106and goods_name not like'%史努⽐紫洋保温杯SP-A602%'and goods_name not like'%天飞伞3007%'

107and goods_name not like'%天堂10302E国⾊天⾹伞%'and goods_name not like'%天堂苏印丝伞%'

108and goods_name not like'%西铁城电⼦体温计CT513W%'and goods_name not like'%⾹⼭牌电⼦健康秤EB9003L%'

109and goods_name not like'%⾹⼭牌机械健康秤BR2017B%'and goods_name not like'%⼩天⼦钢柄⼋件套⼑A-019%'

110and goods_name not like'%伊莱特3L电饭煲CFXB30-J31A%'and goods_name not like'%宜剪美%'

111and goods_name not like'%⽻梦情缘被套(简装)%'and goods_name not like'%⽻梦情缘床单(简装)%'

112and goods_name not like'%⽻梦情缘枕套(简装)%'and goods_name not like'%⾬花丝绒毯%'

113and goods_name not like'%蒸功夫蒸汤两⽤锅%'and goods_name not like'%⽵纤维被%'and goods_name not like'%⽵纤维浴⼱%' 114and goods_name not like'%红厨 32cm炫雅雪花不沾炒锅YN0304%'

115and goods_name not like'%春笑牌烘鞋器（⼤）%'and goods_name not like'%欧然不锈钢快速电⽔壶CR-1181 1.2L%'

116and goods_name not like'%春笑牌烘鞋器（⼩）%'and goods_name not like'%史努⽐紫洋保温杯 SP-A602%'

117and goods_name not like'%欧然不锈钢快速电⽔壶CR-1120 0.8L%'order by suppliertabid)order by suppliertabid

全是not like，排序写了两次（order by suppliertabid），还有⼀个条件，重复写了两次（goods_id>0 and cat_id=40 and is_real=1 and area in('000','0514')）。

这种看到头都⼤了，然后执⾏查询6秒种，OMG，不到三千的数据，查询要6秒。这是任何⼀个程序员都不允许发⽣的事情。

然后⼜仔细看了下 OMG ，LDGAGA，这个 nd goods_id not in (条件)，重复上⾯where条件了，这个这个，当我没说，⼀个程序能⼲出来这样的事，我就不发表意见了。

然后我就想给优化下，排序重复了去掉⼀个，现在暂时不先考虑NOT LIKE，还有 goods_id>0 and cat_id=40 and is_real=1 and area

in('000','0514')也重复了，去掉⼀个。

去掉⼦条件⾥⾯的。现在执⾏在毫秒级别。and goods_id not in ()这样写没有什么意义，去掉。这样少了⼀半的代码啊。继续改，where 条件改成where goods_id>0 and cat_id=40 and is_real=1 and area in('000','0514') and

夺刀器goods_id not in(

select top 16 goods_id from goods where 后⾯是NOT LIKE数据)这样代码也好看些，运⾏，OMG 才30多毫秒，这就对了，这样才OK。

修改后的代码：

代码

select top16 goods_id,goods_name,goods_thumb,integral,cat_id from

goods where goods_id>0and cat_id=40and is_real=1and area in('000','0514') and

goods_id not in(

select top16 goods_id from goods where

goods_name not like'%SP-8210 史努⽐旋风吹风机%'and goods_name not like'%zippo打⽕机150ZL%'

and goods_name not like'%ZIPPO打⽕机205%'and goods_name not like'%zippo打⽕机280AW陆军空战银章%'

雨棚信号灯

and goods_name not like'%爱国者⾳箱SP-F021%'and goods_name not like'%爱国者⾳箱SP-F027%'

and goods_name not like'%铂⾦多⽤汤锅DFS-T012%'and goods_name not like'%不锈钢快速⽔壶OL-209%'

and goods_name not like'%不锈钢快速⽔壶OL-215%'and goods_name not like'%不锈钢密封碗三件套%'

and goods_name not like'%彩棉浴⼱%'and goods_name not like'%超⼈电吹风SB80%'

and goods_name not like'%超⼈电须⼑SA35%'and goods_name not like'%超⼈电须⼑SA850%'

and goods_name not like'%超⼈电熨⽃SY570%'and goods_name not like'%超⼈⽑球修剪器SR2855%'

and goods_name not like'%超⼈剃须⼑SA2701%'and goods_name not like'%超⼈拓威⼲鞋机TH151%'

and goods_name not like'%厨具⼗⼋件套CQG1518%'and goods_name not like'%春笑牌USB蓝鲸电暖⼿⿏标垫%'

and goods_name not like'%春笑牌USB维尼熊电暖⼿⿏标垫%'and goods_name not like'%春笑牌USB喜洋洋电暖⼿⿏标垫%'

and goods_name not like'%德世朗多功能蒸煮锅%'and goods_name not like'%迪⼠尼保温泡菜壶%'

and goods_name not like'%迪⼠尼抽真空保温杯%'and goods_name not like'%迪⼠尼幸运草随⼿杯%'

and goods_name not like'%冬暖复合被%'and goods_name not like'%都彭⽜⽪⽪带8818C289%'

and goods_name not like'%都彭⽜⽪⽪带8881C055%'and goods_name not like'%都彭⽜⽪钥匙包8855B020-4%'

and goods_name not like'%哆啦A梦便利收纳箱%'and goods_name not like'%哆啦A梦⼤容量真空保温杯%'

and goods_name not like'%哆啦A梦红酒瓶⾬伞(黄)%'and goods_name not like'%哆啦A梦时尚套装礼盒DM-2319%'

and goods_name not like'%果缤纷（⼑具套装）%'and goods_name not like'%韩式调料缸三件套（22*24*26）%'

and goods_name not like'%好帮⼿淘⽶器%'and goods_name not like'%红厨铝合⾦煎盘YN0351%'

and goods_name not like'%吉旺1厘⽆磁钢柄五件套装7162%'and goods_name not like'%吉旺3厘⽊纹6件套7191%'

and goods_name not like'%康⼽蒸好（微波炉专⽤⼩蒸煲）CQG2004%'and goods_name not like'%康⼽SURE不锈钢保温杯%'

and goods_name not like'%康⼽秤⼼如意厨房秤%'and goods_name not like'%康⼽情侣密封罐CQG5001%'

and goods_name not like'%康⼽钛真空保温杯CQG4000%'

and goods_name not like'%康⼽蒸好（微波炉专⽤⼩蒸煲）CQG2004%'and goods_name not like'%康⼽智能卡路⾥电⼦跳绳%'

and goods_name not like'%乐扣茶杯HPL934M%'and goods_name not like'%乐扣乐扣四⽅型保鲜盒HPL809F%'

and goods_name not like'%乐扣乐扣圆型保鲜盒HPL933%'and goods_name not like'%乐仕菲斯贝贝乐保温提盒RSC1000K%'

and goods_name not like'%乐仕菲斯单柄奶锅RS1600K%'and goods_name not like'%乐仕菲斯优乐套装锅RS201T%'

and goods_name not like'%绿波仙⼦（补铁绿彩套锅）%'and goods_name not like'%欧莱斯特304不锈钢⽆缝内胆⽔壶OL-818橙⾊%' and goods_name not like'%欧莱斯特304不锈钢⽆缝内胆⽔壶QL-818%'and goods_name not like'%欧然电⽔壶CR-1130%'

and goods_name not like'%⽇式环保包袋组合（折叠环保包+爱⼼便当包）%'

and goods_name not like'%三洋SANYO 煮蛋器 JH702A%'and goods_name not like'%三洋SANYO煮蛋器JH702A%'

and goods_name not like'%三洋电吹风DH-JH104%'and goods_name not like'%三洋电吹风HD-JH101A%'

and goods_name not like'%三洋电吹风HD-JH104%'and goods_name not like'%三洋电熨⽃A-JH102M%'

and goods_name not like'%三洋加湿器CFK-JH6013%'and goods_name not like'%膳之厨多功能锅CJ-096%'

and goods_name not like'%膳之厨锅具两件套CJ-960%'and goods_name not like'%膳之厨时尚三件套CJ-3683%'

and goods_name not like'%圣德保罗⼯具套装SD-007-C%'and goods_name not like'%⼗⼋⼦作⾼级不锈钢家⽤剪WJJ-01%'

and goods_name not like'%⼗⼋⼦作开瓶器SC-02%'and goods_name not like'%⼗⼋⼦作雅刃六件套⼑S2902%'

and goods_name not like'%⼗⼋⼦作银盈快刃斩切⼑S2504-A%'and goods_name not like'%时尚折叠凳%'

and goods_name not like'%史努⽐故事保鲜盒组SP-A123%'and goods_name not like'%史努⽐故事⽔杯SP-A317%'

and goods_name not like'%史努⽐酷狗健康称SP-H201%'and goods_name not like'%史努⽐酷炫多功能杯SP-A105%'

and goods_name not like'%史努⽐亲亲四⼊冷⽔壶SP-A203%'and goods_name not like'%史努⽐清凉⼩冰杯SP-A112%'

and goods_name not like'%史努⽐提⼿杯%'and goods_name not like'%史努⽐幸福双层饭盒SP-C103%'

and goods_name not like'%史努⽐紫洋保温杯SP-A602%'and goods_name not like'%天飞伞3007%'

and goods_name not like'%天堂10302E国⾊天⾹伞%'and goods_name not like'%天堂苏印丝伞%'

and goods_name not like'%西铁城电⼦体温计CT513W%'and goods_name not like'%⾹⼭牌电⼦健康秤EB9003L%'

and goods_name not like'%⾹⼭牌机械健康秤BR2017B%'and goods_name not like'%⼩天⼦钢柄⼋件套⼑A-019%'

and goods_name not like'%伊莱特3L电饭煲CFXB30-J31A%'and goods_name not like'%宜剪美%'

and goods_name not like'%⽻梦情缘被套(简装)%'and goods_name not like'%⽻梦情缘床单(简装)%'

and goods_name not like'%⽻梦情缘枕套(简装)%'and goods_name not like'%⾬花丝绒毯%'

and goods_name not like'%蒸功夫蒸汤两⽤锅%'and goods_name not like'%⽵纤维被%'and goods_name not like'%⽵纤维浴⼱%'

and goods_name not like'%红厨 32cm炫雅雪花不沾炒锅YN0304%'

and goods_name not like'%春笑牌烘鞋器（⼤）%'and goods_name not like'%欧然不锈钢快速电⽔壶CR-1181 1.2L%'

and goods_name not like'%春笑牌烘鞋器（⼩）%'and goods_name not like'%史努⽐紫洋保温杯 SP-A602%'

and goods_name not like'%欧然不锈钢快速电⽔壶CR-1120 0.8L%')order by suppliertabid

这样就完整了吗？NO NO NO。BIFEI

继续优化，这还怎么优化，当然能了，现在查的是商品名字啊，改啊商品ID，不使⽤NOT LIKE 性能太差了。创建唯⼀索引，OMG，更加快了。这样是最终效果。任务完成。代码真雷死我了。

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