collect data from multiple tables with count and sum - php

Question

SELECT sum(amount) as amount , COUNT(userid) as total FROM table1 WHERE userid='1111' union all
SELECT sum(amount) as amount, COUNT(userid) as total FROM table2 WHERE userid='1111' union all
SELECT sum(amount) as amount, COUNT(userid) as total FROM table3 WHERE userid='1111' union all
SELECT sum(amount) as amount, COUNT(userid) as total FROM table4 WHERE userid='1111' union all
SELECT sum(amount) as amount, COUNT(userid) as total FROM table5 WHERE userid='1111'
I found this somewhere but its not working for me .
Proposed solution:
The other option is to get data from all tables separately and then display it .
Question:
I want to get data from multiple tables with single query. amount will be added and userid will be counted from all tables.
Additional Notes:
It should gather all the info about user id = 1111 and save in two varibables.
Userid= 1111 , may not be present in some tables.
Expect out will be like this:
your total : $total | and your amount : $amount
Based on suggestions. here is what i have acheieved so far and how i am trying to display it. it displays nothing without any errors:
If i use single query, then the results are displayed fine.
<?php
$sqltotal=mysql_query("SELECT SUM(data.Amount) as Amount ,SUM(data.total) as total
FROM
(
SELECT COALESCE(sum(amount),0) as amount , COALESCE(COUNT(userid)) as total FROM table1 WHERE userid='1111'
UNION ALL
SELECT COALESCE(sum(amount),0) as amount, COALESCE(COUNT(userid)) as total FROM table2 WHERE userid='1111'
UNION ALL
SELECT COALESCE(sum(amount),0) as amount, COALESCE(COUNT(userid)) as total FROM table3 WHERE userid='1111'
UNION ALL
SELECT COALESCE(sum(amount),0) as amount, COALESCE(COUNT(userid)) as total FROM table4 WHERE userid='1111'
UNION ALL
SELECT COALESCE(sum(amount),0) as amount, COALESCE(COUNT(userid)) as total FROM table5 WHERE userid='1111'
) as data
");
while($row = mysql_fetch_array($sqltotal))
{
echo "$row[total]";
echo "$row[sum]";
}
//echo "$yourtotal: $row[total]";
?>

Answer 1

If you need the single row for all the tables sum for the column amount then just do the Outer select on UNION. Now as you mentioned in comment may be some of tables may not contain the UserID you need to use the COALESCE to make sure that if null then get the 0 as selected value.
SELECT SUM(COALESCE(data.Amount,0)) as Amount ,SUM(COALESCE(data.total,0)) as total
FROM
(
SELECT COALESCE(sum(amount),0) as amount , COALESCE(COUNT(userid)) as total FROM table1 WHERE userid='1111'
UNION ALL
SELECT COALESCE(sum(amount),0) as amount, COALESCE(COUNT(userid)) as total FROM table2 WHERE userid='1111'
UNION ALL
SELECT COALESCE(sum(amount),0) as amount, COALESCE(COUNT(userid)) as total FROM table3 WHERE userid='1111'
UNION ALL
SELECT COALESCE(sum(amount),0) as amount, COALESCE(COUNT(userid)) as total FROM table4 WHERE userid='1111'
UNION ALL
SELECT COALESCE(sum(amount),0) as amount, COALESCE(COUNT(userid)) as total FROM table5 WHERE userid='1111'
) as data
And if you want to use the join then you need to use the LEFT JOIN and also need to do the SUM separately for each table and then add that to the main total.

Answer 2

SELECT sum(amount) as amount , COUNT(userid) as total FROM table1
Group By userid

Answer 3

Try this:
SELECT sum(table1.amount + table2.amount + table3.amount + table4.amount) as amount, COUNT(table1.userid) + COUNT(table2.userid) + COUNT(table3.userid) + COUNT(table4.userid) as total
FROM table1, table2, table3, table4
WHERE table1.userid='1111' OR table2.userid='1111' OR table3.userid='1111' OR table4.userid='1111'