使用 JOIN 3 表更新 Oracle？

Question

UPDATE calculation  
LEFT JOIN transportorders ON calculation.ataid = transportorders.nr
LEFT JOIN partner ON partner.taid = transportorders.nr 
      AND calculation.FZZAEHLER=ATAFRACHTZAHLER.FZZAEHLER
SET calculation.BABRECHNUNGSINFO = '.....' 
WHERE calculation.ataid IN
(SELECT transportorders.nr 
 FROM transportorders 
 WHERE transportorders.tournr = '212041') 
AND partner.kundenid = '2486909';

我正在尝试这段代码，但它给我一个错误，提示找不到 SET 关键字。这意味着连接不是它们应该的那样。我如何在 UPDATE 中进行此选择？常规 SELECT 适用于相同的表格。

Answer 1

尝试 merge:

MERGE INTO calculation c
     USING (SELECT '....' new_value, t.nr
              FROM transportoders t LEFT JOIN partner p ON p.taid = t.nr
             WHERE     t.tournr = '212041'
                   AND p.kundenid = '2486909') x
        ON (c.ataid = x.nr)
WHEN MATCHED
THEN
   UPDATE SET c.babrechnungsinfo = x.new_value;

使用 JOIN 3 表更新 Oracle？

Oracle UPDATE with JOIN 3 tables?

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