如果 id 在 mysql 中相关，则总值字段

Question

我将在顶部 id（父 id）中求和值，但我对它的分组感到困惑，

SELECT
  a.acct_no,
  SUM(IF(a.kode = 'D', a.nilai, 0)) AS nilai_debet,
  SUM(IF(a.kode = 'K', a.nilai, 0)) AS nilai_kredit
FROM tr2015 a
INNER JOIN acct2015 b ON a.acct_no = b.acct_no
WHERE
   a.hps <> '*' AND a.tgl LIKE '2015-01%'
GROUP BY
   a.acct_no 
ORDER BY
   a.acct_no

my query result

我如何在查询中将值 nilai_debet（子 id / like 100.01, 100.02, ..., 100.07）与父 id （例如 100）相加？

Answer 1

不完全确定，但我觉得你想SUM() nilai_debet 的所有值，你可以在外部查询中这样做

SELECT SUM(nilai_debet) AS Total_nilai_debet
FROM (
SELECT
  a.acct_no,
  SUM(IF(a.kode = 'D', a.nilai, 0)) AS nilai_debet,
  SUM(IF(a.kode = 'K', a.nilai, 0)) AS nilai_kredit
FROM tr2015 a
INNER JOIN acct2015 b ON a.acct_no = b.acct_no
WHERE
   a.hps <> '*' AND a.tgl LIKE '2015-01%'
GROUP BY
   a.acct_no 
ORDER BY
   a.acct_no) XXX;