DROP TEMPORARY TABLE IF EXISTS Temp_Num ;

CREATE TEMPORARY TABLE Temp_Num ( xh INT PRIMARY KEY ); -- 創(chuàng)建數(shù)字輔助表

SET @i = 0;

INSERT INTO Temp_Num(xh) -- 寫入數(shù)字輔助表

SELECT @i := @i+1

FROM AdDataCenter.`Ad_Targeting_Mobisage` a

LIMIT 0, 100 ;

SELECT b.AdGroupID , SUBSTRING( str_split , a.xh , LOCATE(',',CONCAT( str_split ,','), a.xh ) - a.xh ) AS splitstr

FROM Temp_Num a

CROSS JOIN

(SELECT AppCategory AS str_split ,app.*

FROM AdDataCenter.Ad_Targeting_Mobisage app

WHERE app.AdTargetingID IN (1,2,3,4) ) b

WHERE a.xh <= LENGTH( str_split )

AND SUBSTRING( CONCAT(',', str_split ), a.xh, 1) = ','

LIMIT 0 ,1000 ;

SELECT AppCategory AS str_split ,app.*

FROM AdDataCenter.Ad_Targeting_Mobisage app

WHERE app.AdTargetingID IN (1,2,3,4);

原數(shù)據(jù)

str_split ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? AdTargetingID

---------------------------------------------------------------------- ?---------------

1,10,11,12,13,14,15,16,19,2,20,21,22,24,25,26,27,28,29,3,31,32,4,5,6,8 ? ? ? ? ? ? ? ?2

1,10,11,13,14,15,16,2,20,21,22,25,26,27,28,29,3,31,32,4,6,8 ? ? ? ? ? ? ? ? ? ? ? ? ?? ? ? ? ??3

1,10,11,12,13,14,15,16,19,20,21,22,25,27,28,3,32,4,6,8 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 4

實現(xiàn)的效果是

AdGroupID ?splitstr

--------- ?----------

2 ?1

2 ?10

2 ?11

2 ?12

2 ?13

2 ?14

2 ?15

2 ?16

2 ?19

2 ?2

2 ?20

2 ?21

2 ?22

2 ?24

2 ?25

2 ?26

2 ?27

2 ?28

2 ?29

2 ?3

2 ?31

2 ?32

2 ?4

2 ?5

2 ?6

2 ?8

3 ?1

3 ?10

3 ?11

3 ?13

3 ?14

3 ?15

3 ?16

3 ?2

3 ?20

3 ?21

3 ?22

3 ?25

3 ?26

3 ?27

3 ?28

3 ?29

3 ?3

3 ?31

3 ?32

3 ?4

3 ?6

3 ?8

4 ?1

4 ?10

4 ?11

4 ?12

4 ?13

4 ?14

4 ?15

4 ?16

4 ?19

4 ?20

4 ?21

4 ?22

4 ?25

4 ?27

4 ?28

4 ?3

4 ?32

4 ?4

4 ?6

4 ?8

總結(jié)

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