Mysql 我希望根据schcd、条目日期和手机号码将数据放在一行中
我编写了以下查询Mysql 我希望根据schcd、条目日期和手机号码将数据放在一行中,mysql,Mysql,我编写了以下查询 SELECT distcd,blkcd,schcd,entry_date,mobile_no, class1,class2,class3,class4,class5,class6,class7,class8,class9,class10, class11,class12 FROM adhoc_studentatt_details_prv WHERE SCHCD='20130100101' AND entry_date='2019-05-01 00:00:00' and mo
SELECT distcd,blkcd,schcd,entry_date,mobile_no,
class1,class2,class3,class4,class5,class6,class7,class8,class9,class10,
class11,class12
FROM adhoc_studentatt_details_prv
WHERE SCHCD='20130100101' AND entry_date='2019-05-01 00:00:00' and mobile_no='9801355122'
请帮帮我。您需要MAX()
和分组方式来获得所需的输出
它将按distcd、blkcd、schcd、entry\u date、mobile\u no
对列进行分组,并在一行中返回结果
SELECT distcd,
blkcd,
schcd,
entry_date,
mobile_no,
MAX(class1) AS class1,
MAX(class2) AS class2,
MAX(class3) AS class3,
MAX(class4) AS class4,
MAX(class5) AS class5,
MAX(class6) AS class6,
MAX(class7) AS class7,
MAX(class8) AS class8,
MAX(class9) AS class9,
MAX(class10) AS class10,
MAX(class11) AS class11,
MAX(class12) AS class12
FROM adhoc_studentatt_details_prv
WHERE SCHCD = '20130100101'
AND entry_date = '2019-05-01 00:00:00'
AND mobile_no = '9801355122'
GROUP BY distcd, blkcd, schcd, entry_date, mobile_no
您可能希望对相应的值进行分组和连接,以返回单行结果
我能做到这一点