Question

I have a two tables A and B
I would like to union them and store in to another table;

CREATE TABLE  myspace.test (
(select * from A ) UNION ( select * from B) );

It fails with an error

You have an error in your SQL syntax;
check the manual that corresponds to
your MySQL server version for the
right syntax to use near ‘CREATE TABLE
myspace.test ( (select * from A )
UNION ( s’ at line 1

But the query with: (select * from A ) UNION ( select * from B) gives correct result.

How to store union result in to another table??

Thanks Arman.

EDIT

Well After playing around I found that:

• The query without outer brackets works.

  CREATE TABLE myspace.test
  (select * from A ) UNION ( select * from B) ;

• Adding AS is not solving the problem.

• I was wondered that query with brackets is working well seems tome BUG or maybe I am missing something?

  CREATE TABLE myspace.test
  (select * from A);

Answer 1

Read the documentation. There are no parens around the select-statement.

CREATE TABLE `myspace`.`test` (SELECT * FROM `A`) UNION (SELECT * FROM `B`);

Watch out for duplicate primary keys, though. You may want to consider first creating an empty table myspace.test with the proper layout, then inserting rows into it more selectively.