php - check if mysql row exists not working -

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i have script needs check if mysql row exists. if does, must act on it. if doesnt, must different.. works fine if exist, when doesnt returns error ajax: 

unknown column '100005075040249' in 'field list'

the '100005075040249' value of $friend below

heres php code:

$connection = mysql_connect("$host", "$username", "$password") or die(mysql_error());   $sql_result = mysql_query("select `fb_id` `lavender`.`players` fb_id =  `$friend`");  if(is_resource($sql_result) && mysql_num_rows($sql_result) > 0 ){     $rec = mysql_query("select recieved `lavender`.`players` fb_id = `$friend`");     $rec = $rec['recieved'];     if($rec == 0){         mysql_query("update `lavender`.`players` set `count` = `count`+1, `total` = `total`+1, `recieved` = 1 fb_id= `$friend`");     };      echo "inserted old row"; }else{     mysql_query("insert `lavender`.`players` (`fb_id`, `count`, `total`, `recieved`) values (`$friend`, `1`, `1`, `1`);") or die(mysql_error());      echo "made new row"; };

i tried checking if row above 0 returns same error.

get rid of apostrophes/backticks on $friend in sql statement.


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