mysql在3个月内未检查任何记录，组限制为1，显示最后一笔交易

Question

i want to have a mysql query that generates data without records 3 months period. Display the latest transaction group by name limit by 1.

**Sample data (March to May)**

Name    Date of Transaction 
Robert     2014-03-03
Angel      2014-02-25
Robert     2014-06-03
Daniel     2014-03-11
Angel      2014-05-31
Christine  2014-01-31
Henry      2014-05-05
Henry      2014-06-01
Nicole     2014-03-25

**It should display:**

Name    Date of Transaction 
Daniel     2014-03-11
Nicole     2014-03-25
Angel      2014-05-31
Henry      2014-06-01
Robert     2014-06-03

Is this possible? Here is my query but not working

SELECT *
FROM <tablename>
WHERE date <= CURDATE() - INTERVAL 3 MONTH
GROUP BY name
ORDER BY date
DESC

EDIT

How about without the no records within 3 months?

Name    Date of Transaction 
Christine  2014-01-31

Answer 1

When you use group by you can only display columns in your group by clause unless using an aggregate function. Does this help?

SELECT name, max(dtTransaction)
FROM <tablename>
WHERE date <= CURDATE() - INTERVAL 3 MONTH
GROUP BY name

Use max to get the latest date.

Answer 2

You can try something like this:-

SELECT Name, MAX(Date of Transaction)
FROM <tablename>
WHERE date <= CURDATE() - INTERVAL 3 MONTH
GROUP BY Name
ORDER BY date;