I think you want UNION ALL. This code works on ORACLE, I'm not sure about MySQL. 
INSERT INTO c 
(
    SELECT 
        tok, sum(count) 
    FROM (
        SELECT 
            tok, count 
        FROM 
            a
        UNION ALL
        SELECT 
            tok, count 
        FROM 
            b
    )
    GROUP BY
        tok
)

[download]

--

flounder

In reply to Re: OT: MySQL combine 2 tables data when Perl 'fails' by flounder99
in thread OT: MySQL combine 2 tables data when Perl 'fails' by tachyon

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