trying to remove duplicate values while entering it into a database

[manjushreekaranth]

I have written code in php to connect and insert rows into a MSSQL database. i used odbc to connect database.user can enter his details through the form. after submitting the form the details are getting stored into a database. while inserting rows into a database am not trying to insert duplicate values . for this i have given if conditions.these conditions are able to notice the user cname and name exist in the database if the same name exist. but the else part after these conditions are not working i.e rows are not getting inserted. i put everything inside the while loop. how can i correct it? This is my php code.

 

          $connect = odbc_connect('ServerDB','sa', 'pwd');

          //connects database 

        $query2="select count(*) from company";//this is needer for loop through 

        $result2=odbc_exec($connect,$query2); 

        while(odbc_fetch_row($result2)); 

        {    $count=odbc_result($result2,1); 

          echo "</br>","$count";    } 

          $query1="select * from company";   

          $result1 = odbc_exec($connect, $query1);

          # fetch the data from the database       

          while(odbc_fetch_row($result1))

          {          $compar[$count] = odbc_result($result1, 1);     

          $namearray[$count] = odbc_result($result1, 2);

          if($compar[$count]==$_POST['cname']) 

          {          echo "<script> alert(\"cname Exists\") </script>";   

          }         

          else  if($namearray[$count]==$_POST['name'])   

        {        echo "<script> alert(\"Name Exists\") </script>";        } 

        else

        {     

        $query=("INSERT INTO company(cname,name) VALUES ('$_POST[cname]','$_POST[name]') ");   

          $result = odbc_exec($connect, $query); 

          echo "<script> alert(\"Row Inserted\") </script>"; 

        } 

        }