MySQL 行变列

SELECT cmoup,it_ye,SUM(aunt) FROM (

SELECT
	cmroup,
	CASE 
	
	WHEN SD_UPRICE = 0 THEN
		'buer'
	WHEN SUBSTRING(ST_DATE,1,2) = '988889'  THEN
		'cacel'
	WHEN SD_DELE >=SD_REQDATE   THEN
		'ovdue'				
	ELSE
		'other'
END AS itetype,

	OS_TY*SPRICE*S_RATE AS amount
FROM
	`biz_rp_oo` 
)	 AS tab1

GROUP BY cm_grp,ittype

通过case when 或者Sum if 语法糖把行变成列

SELECT  

cm_gr AS itemo,

SUM(IF(SD_UPRICE = 0 ,OS_Q,0)) AS itemfer,

SUM(IF(SD_DELIVERY_DATE >=SD_REQUEST_DATE,OS_Q,0)) AS itr_due,

SUM(IF(SUBSTRING(SD_R,1,2) != '50' && SUBSTRING(SD_REQUEST_DATE,1,2) AS it

FROM biz_rso

GROUP BY cmoup
ORDER BY cmup