大家好，又见面了，我是你们的朋友全栈君。
SET @EE = '';
SET @str_tmp = '';
SET @Revenue_JSON = '';
SET @Revenue_JSON_tmp = '';
SELECT @EE := CONCAT(
@EE,
'SUM(IF(fsRevenueTypeName=\'',
fsRevenueTypeName,
'\'',
',fdSubTotal,0)) AS ''revenue_',
fsRevenueTypeName,
''','
) AS aa ,
@Revenue_JSON := CONCAT (
@Revenue_JSON,','',"'
,fsRevenueTypeName,'":'','
,'revenue_',fsRevenueTypeName
)
AS bb
INTO @str_tmp,@Revenue_JSON_tmp
FROM
(
SELECT DISTINCT
fsRevenueTypeName
FROM
TempRevenueType
WHERE fsRevenueTypeName IS NOT NULL
) A
ORDER BY
LENGTH(aa) DESC
LIMIT 1;
-- 拼接 json
SELECT CONCAT('''{',SUBSTRING(@Revenue_JSON_tmp,4),','',"汇总":'',','revenue_汇总',',''}''') INTO @Revenue_JSON_tmp;
SET @QQ = CONCAT(
' CREATE TEMPORARY TABLE TempRevenueType1 ( SELECT fsSellNo3,CONCAT(',@Revenue_JSON_tmp,') as revenue_info',
' FROM ( SELECT fsSellNo as fsSellNo3,',@str_tmp,
' SUM(fdSubTotal) AS revenue_汇总 FROM TempRevenueType Group By fsSellNo) a );'
);
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