Question

我有两个桌子。

我想将chart_num值用于两个表。

表Hospital_payment_data

id  chart_num   treatment_fees_difference    treatment_fees_check_division
1        9        200000                             test
2        9        100000                             test

表advenced_payment

id  chart_num      advenced_amount
1      9                100000

我想要结果

COUNT       if_treatment_fees_check_division     sum_init_amount
  2                      200000                  100000

我希望treatment_fees_check_division =“测试”计数和我想要treatment_fees_check_division ='test'条件总和treatment_fees_difference + advenced_amount 如何获得我想要的结果？您能提供解决方案吗？

Answer 1

我认为您正在寻找以下查询-

DEMO HERE

注意：根据您的条件和数据，if_treatment_fees_check_division的总和应为300000

SELECT A.chart_num,
COUNT(*) COUN,
SUM(CASE 
    WHEN treatment_fees_check_division = 'test' THEN treatment_fees_difference 
    ELSE 0 
END) if_treatment_fees_check_division,
(
    SELECT SUM(advenced_amount) 
    FROM advenced_payment 
    WHERE chart_num = A.chart_num
) sum_init_amount
FROM hospital_payment_data A
GROUP BY A.chart_num

如何计算两张表的总和

1 个答案: