Sql 很好，如果在我得到-250后手动计算所有负值，但如果我尝试你的secound查询，它仍然会减去-500。我要把Nutsry转换成整数，就像编辑过的答案@RekeUnhs一样 SELECT Sum(CASE WHEN c_calcType = 'calcCo

---

很好，如果在我得到-250后手动计算所有负值，但如果我尝试你的secound查询，它仍然会减去-500。我要把Nutsry转换成整数，就像编辑过的答案@RekeUnhs一样

SELECT Sum(CASE WHEN c_calcType = 'calcCorrection' THEN (c_calcValue * -1)
                ELSE c_calcValue END) as c_calcValue,
       c_parentID
FROM DB_Calc
WHERE c_parentID is not null AND c_state <> 'deactiveted'
GROUP BY c_parentID

SELECT (CASE
                 WHEN c_calcType = 'calcCorrection' THEN (CONVERT(c_calcValue, INT)  * -1)
                 ELSE CONVERT(c_calcValue, INT)
              END)
                AS c_calcValue,
             c_parentID
        FROM DB_Calc
       WHERE c_parentID IS NOT NULL AND c_state <> 'deactiveted'

  SELECT SUM (cValTable.c_calcValue), cValTable.c_parentID
       FROM (SELECT (CASE
                 WHEN c_calcType = 'calcCorrection' THEN (CONVERT(c_calcValue, INT)* -1)
                 ELSE CONVERT(c_calcValue, INT)
              END)
                AS c_calcValue,
             c_parentID
        FROM DB_Calc
       WHERE c_parentID IS NOT NULL AND c_state <> 'deactiveted') cValTable
    GROUP BY cValTable.c_parentID

SELECT Sum(CASE WHEN c_calcType = 'calcCorrection' THEN (c_calcValue * -1)
                ELSE c_calcValue END) as c_calcValue
FROM DB_Calc

c_calcValue
750

SELECT sum(c_calcValue),c_parentID FROM DBCalc WHERE r_Rechnungstyp <> 'calcCorrection' AND c_state <> 'deactiveted' GROUP BY c_parentID UNION ALL SELECT sum(-c_calcValue),c_parentID FROM DBCalc WHERE r_Rechnungstyp = 'calcCorrection' AND c_state <> 'deactiveted' GROUP BY c_parentID