I have a column that needs to be updated but must be located through a series of events. The column is for passwords. On an update I need to compare an email address in one table with an email address in another which contains a unique id.

my $sth=$dbh->prepare("Update table1 set password='$newpassword' where
+ binary table1.emailaddress = binary table2.emailaddress and  table2.
+uniqueid ='$unique_id'");
$sth->execute();

[download]

The variables $newpassword and $unique_id are coming through but table1 is not updating. I looked for examples of updates and found none showing where values across tables were compared. Am I doing something wrong or is this something that won't work?

In reply to Cross Table Mysql Update by typomaniac

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