如何在mongodb中将数据从一列移动到另一列？

Question

我想将数据从“demographic.education”列移到“demographic.school”。我怎么能这样做？

例如：

db.users.update({"demographic.education":{$exists: true, $ne: ""}}, {$set: {"demographic.school":demographic.education}})

Answer 1

您可以使用$rename修饰符：

db.users.update({"demographic.education": {$exists: true, $ne: ""}}, {$rename: {"demographic.education": "demographic.school"}})

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