Select into from prompt Undeclared variable... solution to the error

During the database table copy and backup operations, we should all know that there are two methods: select into from and insert into select? I will not talk about the differences and usage of the two methods here. If you need them, refer to the article on this site:

Differences and usage of select into from and insert into select

However, when I used select into from to back up mysql Data Tables today, I always returned [Err] 1327-Undeclared variable :...... this error is hard to understand. It is only known after query of relevant information that mysql database does not support the select into from statement, however, after research, we can solve this problem through another work und. Let's talk about the solution to this problem!

You can use

Create table Table2 (Select * from Table1);

This statement is replaced

SELECT vale1, value2, value3 into Table2 from Table1;

The following is an example of my actual operations!

Create table www.phpernote.com (Select A.id,B.id as typeId,A.brand,A.quanpin,A.simple from brands as A,cartype as B where A.type=B.name group by A.brand);

Join two tables to get a query result and insert the result to a newly created table www.phpernote.com.

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