MySQL获得季度数字的开始和结束日期

Question

$sq ="
SELECT count(noofrows),QUARTER(Date(last_call)) as quarter,YEAR(last_call) 
FROM $dbt.travel_crm 
WHERE Date(last_call) BETWEEN '".$_GET['startdate']."' 
AND '".$_GET['enddate']."' 
GROUP BY QUARTER(Date(last_call)) 
ORDER BY YEAR(last_call)";

只考虑当前年份的行数，因为按季度分组，我需要按(quarter,year)进行分组，我该怎么做？

Answer 1

如果您需要按季度和年份分组 - 只需这样做：

GROUP BY YEAR(last_call), QUARTER(last_call)