Good day Monks. I have a small sub that fetches a value from mysql: 
sub getsqlvalue {
    my @results = ();
    my ($dbh,$sqlstatement)= @_;
    my $sth = $dbh->prepare($sqlstatement);
    my @row;
    $sth->execute || die "Could not execute MySQL statement: $sqlstate
+ment";
    while (@row=$sth->fetchrow_array) { push(@results, [ @row ]); }
    $sth->finish();
    return $results[0][0];
}

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I am using this in a program that is accessing a MyISAM table in MySQL. I issue a write lock on several tables in the same schema, but not this table named "vocabulary." Then when I try to do a SELECT on vocabulary I get the error "DBD::mysql::st execute failed: Table 'vocabulary' was not locked with LOCK TABLES" on the $sth->execute line in the above sub. I have tested the SQL statement being executed and it is valid. I have no clue what the problem is, since it is correct that I have not locked that table! Anyone know what's going on?

Many TIA

Steve UPDATE I found the answer in the MySQL docs for lock tables: "When you use LOCK TABLES, you must lock all tables that you are going to use in your queries." So the problem was indeed that I had not locked the table.

In reply to DBD::Mysql Strange Locking error by cormanaz

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