sql

1. case, count sql

SELECT
 (case 
      when shi='1101' then 1
      when shi='2101' then 2
      when shi='3101' then 3
      when shi='3206' then 4
      when shi='5101' then 5
      when shi='4101' then 6
      when shi='1404' then 7
      when shi='3710' then 8
      when shi='4401' then 9 end) sortc,
	sheng 省代码,
	shengmc 省名称,
    shi 市代码,
	shimc 市名称,
	cast(sum( qxs ) AS UNSIGNED) 填报数,
	cast(sum( saved ) AS UNSIGNED) 完成数,
	cast(sum( zj ) AS UNSIGNED) 总计,
	cast(sum( zzyy ) AS UNSIGNED) 正在营业,
	cast(sum( ztyy ) AS UNSIGNED) 暂停营业,
	cast(sum( zx ) AS UNSIGNED) 转型,
	cast(sum( qt ) AS UNSIGNED) 其他,
	concat(ROUND((sum(ztyy)/sum(zj))*100,2),'%') 暂停率,
	concat(ROUND(((sum(zx)+sum(qt))/sum(zj))*100,2),'%') 压减率,
	cast(sum(yzfjgs) AS UNSIGNED) 营转非机构数（个）,
	cast(sum(zxzfzdjjgs) AS UNSIGNED) 执行政府指导价机构数（个）,
	cast(sum(syfwhtjgs) AS UNSIGNED) 使用《中小学生校外培训服务合同（示范文本）》（2021年修订版）机构（个）,
	cast(sum(zdxs) AS UNSIGNED) 在读学生（人）,
	ROUND(sum(wxfje),2) 未消课金额（万元）,
	ROUND(sum(qx),2) 欠薪（万元）,
    cast(sum(zjjgjgyzhzt) AS UNSIGNED) 监管函正在营业和暂停,
	cast(sum(zjjgjgzx) AS UNSIGNED) 监管函注销监管机构,
    sum(zjjgjeyzhzt) 监管函正在营业和暂停1,
	sum(zjjgjezx) 监管函注销监管机构1,
	cast(sum(jzgzj) AS UNSIGNED)总计1,
	cast(sum(jnsb) AS UNSIGNED)其中缴纳社保,
	cast(sum(jxry) AS UNSIGNED)教学教研人员,
	cast(sum(qtcyrys) AS UNSIGNED)其他从业人员,
	cast(sum(ycy) AS UNSIGNED)已裁员,
	cast(sum(yjcy) AS UNSIGNED)预计裁员
FROM
	dim.dim_xxpxjgqktj_qu
WHERE
	 shi='1101' or shi='3101' or shi='4101' or shi='2101' or shi='4401' or shi='1404' or shi='5101' or shi='3206' or shi='3710' 
GROUP BY 
	sheng,shengmc,shi,shimc
order by
    sortc

　　

用一个表的数据，批量更新另一个表，有关联条件

UPDATE uc.uc_jigou_nianji t1
INNER JOIN ( SELECT jgdm, grade_1，grade_2,grade_3,grade_4,grade_5,grade_6 FROM dim.dim_jzwjxx_2021_termend_v1 ) t2 ON t1.SCHOOLID = t2.jgdm 
SET t1.shfs_jzwj_2021termend = (
CASE
 WHEN t1.nj = '1' THEN t2.grade_1
 WHEN t1.nj = '2' THEN t2.grade_2
 WHEN t1.nj = '3' THEN t2.grade_3
 WHEN t1.nj = '4' THEN t2.grade_4
 WHEN t1.nj = '5' THEN t2.grade_5
 WHEN t1.nj = '6' THEN t2.grade_6
else 0
end
)