I believe your code is equivalent to:

sub does_table_exist {
    my ($db_handle, $table_name) = @_;
    my $query_handle = $db_handle->prepare("DESC $table_name");
    $query_handle->{RaiseError} = 0;
    $query_handle->{PrintError} = 0;
    return $query_handle->execute();
}

[download]

You didn't take into account PrintError. The above clears RaiseError and PrintError, but only only for the sth created to execute DESC.

By the way, you're not quoting the table name, so still have a bug. You'll probably save yourself some trouble using rnahi's solution.

In reply to Re: Checking for DB table existence using DBI/DBD by ikegami
in thread Checking for DB table existence using DBI/DBD by shemp

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