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Write a query to to delete duplicate rows?

Answer Posted / rakesh dongarwar

$query="SELECT * FROM `emails` ORDER BY `email` ASC LIMIT 0, 30";
mysql_query($query);
$result=mysql_query($query);

$numrows=mysql_num_rows($result);

$totalemailsdeleted=0;
$i=1;
$i2=0;
while($i2 < $numrows)
{
$id=mysql_result($result, $i2, id);
$email=mysql_result($result, $i2, email);
while($i < $numrows)
{
$idcompare=mysql_result($result, $i, id);
$emailcompare=mysql_result($result, $i, email);
if($emailcompare == $email)
{
$query="DELETE FROM `emails` WHERE `id` = '$idcompare' LIMIT 1";
mysql_query($query);
$emailsdeleted.="$emailcompare<br>";
$totalemailsdeleted++;
$numrows=mysql_num_rows($result);
}
else
{
}
$i++;
}
$i2++;
}

Is This Answer Correct ?    4 Yes 11 No



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