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【DM版本】:8
【操作系统】：winds
【CPU】:x64
【问题描述】*：UPDATE zszx.EM_SUPPORT_PROJECT_PLAN_DETAIL A,
(
SELECT A.ID as entpriseId ,1 AS count FROM zszx.EM_ENTPRISE_MASTER A
WHERE IFNULL(A.REG_ADDRESS,'') <> ''
AND IFNULL(A.REG_ADDRESS_OLD,'') <> ''
AND A.REG_ADDRESS <> A.REG_ADDRESS_OLD
GROUP BY A.ID
) B
SET A.EARLY_WARNING_NUMBERT = IFNULL(A.EARLY_WARNING_NUMBERT,0) + B.count
WHERE A.PLAN_ID = 1 AND A.ENTPRISE_ID = B.entpriseId
试一下下面这个写法是否能正常执行
UPDATE zszx.EM_SUPPORT_PROJECT_PLAN_DETAIL A SET A.EARLY_WARNING_NUMBERT = IFNULL(A.EARLY_WARNING_NUMBERT,0) + B.count FROM (SELECT A.ID as entpriseId ,1 AS count FROM zszx.EM_ENTPRISE_MASTER A WHERE IFNULL(A.REG_ADDRESS,'') <> '' AND IFNULL(A.REG_ADDRESS_OLD,'') <> '' AND A.REG_ADDRESS <> A.REG_ADDRESS_OLD GROUP BY A.ID ) B WHERE A.PLAN_ID = 1 AND A.ENTPRISE_ID = B.entpriseId