[英]how to copy one column to another with data in mysql on same table?
I have a user_master table. 我有一个user_master表。 And i have need to copy user's first address to alternate address column for all users those alternate address is not available.
对于所有那些备用地址不可用的用户,我需要将用户的第一个地址复制到备用地址列。
Just use update table query. 只需使用更新表查询即可。 Kindly check below.
请在下面检查。
UPDATE users_master SET alt_address = first_address WHERE alt_address = '';
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