mysql---行与列互转

– Table structure for

TabName

DROP TABLE IF EXISTS

TabName

;

CREATE TABLE

TabName

(

Id

int(11) NOT NULL AUTO_INCREMENT,

Name

varchar(20) DEFAULT NULL,

Date

date DEFAULT NULL,

Scount

int(11) DEFAULT NULL,

PRIMARY KEY (

Id

)

) ENGINE=InnoDB AUTO_INCREMENT=9 DEFAULT CHARSET=utf8;

– Records of TabName

INSERT INTO

TabName

VALUES (‘1’, ‘小说’, ‘2013-09-01’, ‘10000’);

INSERT INTO

TabName

VALUES (‘2’, ‘微信’, ‘2013-09-01’, ‘20000’);

INSERT INTO

TabName

VALUES (‘3’, ‘小说’, ‘2013-09-02’, ‘30000’);

INSERT INTO

TabName

VALUES (‘4’, ‘微信’, ‘2013-09-02’, ‘35000’);

INSERT INTO

TabName

VALUES (‘5’, ‘小说’, ‘2013-09-03’, ‘31000’);

INSERT INTO

TabName

VALUES (‘6’, ‘微信’, ‘2013-09-03’, ‘36000’);

INSERT INTO

TabName

VALUES (‘7’, ‘小说’, ‘2013-09-04’, ‘35000’);

INSERT INTO

TabName

VALUES (‘8’, ‘微信’, ‘2013-09-04’, ‘38000’);

– 查看数据

SELECT * from TabName ;

– 列转行统计数据

SELECT Date ,

MAX(CASE NAME WHEN ‘小说’ THEN Scount ELSE 0 END ) 小说,

MAX(CASE NAME WHEN ‘微信’ THEN Scount ELSE 0 END ) 微信

FROM TabName

GROUP BY Date

– 行转列统计数据

select

Date, group_concat(NAME,’总量:’,Scount) as b_str from TabName

group by Date

select Date,NAME, group_concat(NAME,’总量:’,Scount) as b_str from TabName

group by Date ,NAME