How to query SELECT SUM of Total from three different table php

Question

Hope you good Guys! I have a big problem on SELECT three different table and SUM there Total so that I may get Grand total of those three tables. The table as follows, I just mention some of fields:

1:payment

id idnumber school_fee  trans_fee
1  va03     10000       20000

2:payment_one

id idnumber school_fee  trans_fee
1  va01     10000       30000

3:payment_two

id idnumber school_fee  trans_fee
1  va02     40000       50000

I have already get 'Total' from each table, what I want is to SUM UP those Total I get, to have Grand total from those three tables.

Here my php codes;

1:payment:

  <?php

     //include mysql connect

   if (isset($_GET['query'])) 
{    
      $query=$_GET['query'];

      // Instructions if $_POST['value'] exist    
      }  

   // gets value sent over search form

     $min_length = 3;
    // you can set minimum length of the query if you want

    if(strlen($query) >= $min_length){ // if query length is more or equal minimum  
           length then

       $query = htmlspecialchars($query); 
        // changes characters used in html to their equivalents, for example: < to &gt;

    $query = mysql_real_escape_string($query);
    // makes sure nobody uses SQL injection

       $raw_results = mysql_query("SELECT      
    *,SUM(school_fee+trans_fee) 
                    As Total  FROM payment
            WHERE (`class` LIKE '%".$query."%')") or die(mysql_error());

  $raw_results2 = mysql_query("SELECT * FROM payment
        WHERE (`class` LIKE '%".$query."%')") or die(mysql_error());





    // * means that it selects all fields, you can also write: `id`, `title`, `text`
    // articles is the name of our table

       // '%$query%' is what we're looking for, % means anything, for example if $query  
         is  Hello
    // it will match "hello", "Hello man", "gogohello", if you want exact match use  
      `title`='$query'
       // or if you want to match just full word so "gogohello" is out use '% $query %' 
          ...OR ... '$query %' ... OR ... '% $query'


    if(mysql_num_rows($raw_results) > 0){
    if(mysql_num_rows($raw_results2) > 0){
     // if one or more rows are returned do following

        while($results = mysql_fetch_array($raw_results)){
         while($results2 = mysql_fetch_array($raw_results2)){

        // $results = mysql_fetch_array($raw_results) puts data from database into   
               array, while it's valid it does the loop


            // posts results gotten from database(title and text) you can also show id  
                    ($results['id'])
        }{



              echo " &nbsp;Total amount of money payed by&nbsp;" .$results['class']  
                  ."&nbsp;"."class is&nbsp;" . $results ['Total'] . "&nbsp;/=Tshs";



              echo"<br>";   echo"<br>"; 
                               }


                  }
            }
            }
       }

                      ?>

2:payment_one

 <?php

     //include mysql connect

   if (isset($_GET['query'])) 
{    
      $query=$_GET['query'];

      // Instructions if $_POST['value'] exist    
      }  

   // gets value sent over search form

     $min_length = 3;
    // you can set minimum length of the query if you want

    if(strlen($query) >= $min_length){ // if query length is more or equal minimum  
           length then

       $query = htmlspecialchars($query); 
        // changes characters used in html to their equivalents, for example: < to &gt;

    $query = mysql_real_escape_string($query);
    // makes sure nobody uses SQL injection

       $raw_results = mysql_query("SELECT      
    *,SUM(school_fee+trans_fee) 
                    As Total  FROM payment_one
            WHERE (`class` LIKE '%".$query."%')") or die(mysql_error());

  $raw_results2 = mysql_query("SELECT * FROM payment_one
        WHERE (`class` LIKE '%".$query."%')") or die(mysql_error());





    // * means that it selects all fields, you can also write: `id`, `title`, `text`
    // articles is the name of our table

       // '%$query%' is what we're looking for, % means anything, for example if $query  
         is  Hello
    // it will match "hello", "Hello man", "gogohello", if you want exact match use  
      `title`='$query'
       // or if you want to match just full word so "gogohello" is out use '% $query %' 
          ...OR ... '$query %' ... OR ... '% $query'


    if(mysql_num_rows($raw_results) > 0){
    if(mysql_num_rows($raw_results2) > 0){
     // if one or more rows are returned do following

        while($results = mysql_fetch_array($raw_results)){
         while($results2 = mysql_fetch_array($raw_results2)){

        // $results = mysql_fetch_array($raw_results) puts data from database into   
               array, while it's valid it does the loop


            // posts results gotten from database(title and text) you can also show id  
                    ($results['id'])
        }{



              echo " &nbsp;Total amount of money payed by&nbsp;" .$results['class']  
                  ."&nbsp;"."class is&nbsp;" . $results ['Total'] . "&nbsp;/=Tshs";



              echo"<br>";   echo"<br>"; 
                               }


                  }
            }
            }
       }

                      ?>

3:payment_two

 <?php

     //include mysql connect

   if (isset($_GET['query'])) 
{    
      $query=$_GET['query'];

      // Instructions if $_POST['value'] exist    
      }  

   // gets value sent over search form

     $min_length = 3;
    // you can set minimum length of the query if you want

    if(strlen($query) >= $min_length){ // if query length is more or equal minimum  
           length then

       $query = htmlspecialchars($query); 
        // changes characters used in html to their equivalents, for example: < to &gt;

    $query = mysql_real_escape_string($query);
    // makes sure nobody uses SQL injection

       $raw_results = mysql_query("SELECT      
    *,SUM(school_fee+trans_fee) 
                    As Total  FROM payment_two
            WHERE (`class` LIKE '%".$query."%')") or die(mysql_error());

  $raw_results2 = mysql_query("SELECT * FROM payment_two
        WHERE (`class` LIKE '%".$query."%')") or die(mysql_error());





    // * means that it selects all fields, you can also write: `id`, `title`, `text`
    // articles is the name of our table

       // '%$query%' is what we're looking for, % means anything, for example if $query  
         is  Hello
    // it will match "hello", "Hello man", "gogohello", if you want exact match use  
      `title`='$query'
       // or if you want to match just full word so "gogohello" is out use '% $query %' 
          ...OR ... '$query %' ... OR ... '% $query'


    if(mysql_num_rows($raw_results) > 0){
    if(mysql_num_rows($raw_results2) > 0){
     // if one or more rows are returned do following

        while($results = mysql_fetch_array($raw_results)){
         while($results2 = mysql_fetch_array($raw_results2)){

        // $results = mysql_fetch_array($raw_results) puts data from database into   
               array, while it's valid it does the loop


            // posts results gotten from database(title and text) you can also show id  
                    ($results['id'])
        }{



              echo " &nbsp;Total amount of money payed by&nbsp;" .$results['class']  
                  ."&nbsp;"."class is&nbsp;" . $results ['Total'] . "&nbsp;/=Tshs";



              echo"<br>";   echo"<br>"; 
                               }


                  }
            }
            }
       }

                      ?>

Any help I'will be thankfully.

Answer 1

If I understand correctly, all of your three tables [payment][payment_one][payment_two] have same columns: id, idnumber, school_fee trans_fee.

You would be able to use one single table instead, and distinguish them by introducing a new column: tablenum, then it will be simple to obtain what you want. Please note both [id] and [tablenum] are primary key (composite primary key) now.

New table schema and the data would be (I'm not very sure about the purpose of your idnumber column):

[payment] 
id tablenum idnumber school_fee  trans_fee 
1  0        va03     10000       20000
1  1        va01     10000       30000
1  2        va02     40000       50000

SQL example:

SELECT 
school_fee,
trans_fee,
(school_fee + trans_fee) as 'total'
FROM payment WHERE id=1