If your user table is this

TABLE users

userid FNAME LNAME 
1      JOHN  DEO
2      JANE  DEO

[download]

this line

my $data = $DBH->prepare("SELECT SND.userid, SND.firstname, SND.lastname

give the error

DBD::mysql::st execute failed: Unknown column 'SND.firstname' in 'field list'

If I correct that error, the next error is 

Not an ARRAY reference
at this line

    foreach $row ( @$data) {

because as I told you here $data is a statement handle not an array refence

I don't know what code you have that is working but it's not what you posted.

poj

In reply to Re^7: sql join with multiple select by poj
in thread sql join with multiple select by bigup401

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