Property "Subject" is part of the object's key information and cannot be modified-CodePudding

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Property "Subject" is part of the object's key information and cannot be modified

Time：09-19

I modify the two tables, the primary key table column can be modified, the other one table column can be modified, the other columns cannot be modified, that is why

CodePudding user response:

Can click on the lower left corner of the "view details", see what the situation was explained

CodePudding user response:

Joint primary key? ,

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