如何從三個不同的表php中查詢Total的SELECT SUM
[英]How to query SELECT SUM of Total from three different table php
問題描述
希望你們好！ 我在選擇三個不同的表上有一個大問題，在那兒求和總計，這樣我就可以得到這三個表的總計。 下表如下，我只提到一些字段：
1：付款
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
我已經從每個表中獲取了“總計”，我想要對這些總計進行匯總，以使這三個表具有總計。
這是我的php代碼；
1：付款方式：
<?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 >
$query = mysql_real_escape_string($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
($results['id'])
}{
echo " Total amount of money payed by " .$results['class']
." "."class is " . $results ['Total'] . " /=Tshs";
echo"<br>"; echo"<br>";
}
}
}
}
}
?>
2：payment_one
<?php
//include mysql connect
if (isset($_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 >
$query = mysql_real_escape_string($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
($results['id'])
}{
echo " Total amount of money payed by " .$results['class']
." "."class is " . $results ['Total'] . " /=Tshs";
echo"<br>"; echo"<br>";
}
}
}
}
}
?>
3：payment_two
<?php
//include mysql connect
if (isset($_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 >
$query = mysql_real_escape_string($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
($results['id'])
}{
echo " Total amount of money payed by " .$results['class']
." "."class is " . $results ['Total'] . " /=Tshs";
echo"<br>"; echo"<br>";
}
}
}
}
}
?>
我會提供任何幫助。
1 個解決方案
解決方案1
0 2013-11-03 14:28:08
如果我理解正確，您的所有三個表[payment] [payment_one] [payment_two]的列均相同：id，idnumber，school_fee trans_fee。
您將可以使用一個表代替，並通過引入新列tablenum來區分它們，那么將很容易獲得所需的內容。 請注意，[id]和[tablenum]現在都是主鍵（復合主鍵）。
新的表架構和數據將是（我不太確定您的idnumber列的用途）：
[payment]
id tablenum idnumber school_fee trans_fee
1 0 va03 10000 20000
1 1 va01 10000 30000
1 2 va02 40000 50000
SQL范例：
SELECT
school_fee,
trans_fee,
(school_fee + trans_fee) as 'total'
FROM payment WHERE id=1
如何通過 select 從其他表中求和 select 三個最高輸出？
[英]How to select the three highest outputs by select sum from other table?
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[英]subtract two different sum of column from two different table in select query
如何使用PHP或MySQL對一個表中的不同列求和，並在另一表中獲得求和結果？
[英]How to sum different columns from one table and get the sum result in another table using PHP or MySQL?
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