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The default value of a column in mysql is another column. Is there a solution>

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The default value of a column in mysql is another column. Is there a solution? & gt; ipvarchar (20), namevachar (20) I want to fill in the ip address value when the insert statement does not give the name value, that is, how to write the NOTNULLDEFAULTVALUE. Is there a way? ------ solution ------------------ why can't the program process it, pre-processing data before insertion? The default value of a mysql column is another column. Is there a solution>
Ip varchar (20 ),
Name vachar (20)

I want to fill in the ip VALUE when the insert statement does NOT give the name VALUE, that is, how to write the NOT NULL DEFAULT VALUE. Is there any way to do this?

------ Solution --------------------
Why cannot I process the data by using a program?

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