Mysql copies a record $ SQL = & quot; insertintotable1 (*) select * fromtable1whereid = $ id & quot; above is error 1. ID is automatically increased by 2. how can I complete copying all fields ., You need mysql to copy a record
$ SQL = "insert into table1 (*) select * from table1 where id = $ id ";
The above is incorrect.
1. automatically add ID
2. copy all fields
How can this problem be improved.
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You need to list field names other than id
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The copied field corresponds to your inser into tablename1 (a, B) select a, B from tablename
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If you do not want to list fields manually, you can use the program
Because there is a primary key, it won't work if you don't list it.
What's more, mysql always recommends that you list the required fields to improve efficiency, instead of simply setting *
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Similar to common writing, the field value must correspond
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