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Asked: 2026-06-14T03:21:09+00:00

I would like to insert values into two separate MySQL tables using DBI .

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I would like to insert values into two separate MySQL tables using DBI. I tried to combine two working INSERT queries into one by inserting a ; between them:

$dbh->do(q{
    INSERT INTO `testA`(test) values('testvalue111');
    INSERT INTO `testB`(test) values('testvalue222');
});

But I always get an error:

Syntactic error in “INSERT INTO `testB`(test) values(‘testvalue222 …”

If I separate the queries into two separate do calls, it works. But the combined query works fine in phpMyAdmin. Why does it fail in Perl?

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1 Answer

  1. Editorial Team

    You need to set an option in the connect call to enable this. From the docs:

    mysql_multi_statements
    As of MySQL 4.1, support for multiple statements seperated by a semicolon (;) may be enabled by using this option. Enabling this option may cause problems if server-side prepared statements are also enabled.

    It is disabled by default, and should probably remain unset – that’s a large avenue for SQL injection (which you should be reading about especially if you’re not using binds).

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