[英]How To get Sum of two fields from databse
$query = "SELECT agent_id, SUM(amount) FROM bill WHERE YEAR(date) = YEAR(CURDATE()) AND MONTH(date) = MONTH(CURDATE()) GROUP BY agent_id";
$result = mysql_query($query) or die(mysql_error());
// Print out result
while($row = mysql_fetch_array($result)){
echo "Total ". $row['agent_id']. " = $". $row['SUM(amount)'];
echo "<br />";
}
DB Structure image: DB结构图:
What I want know how is it possible to display sum of cheque and amount currently its working as sum of amount only 我想知道如何将支票和金额的当前显示为仅金额的工作
尝试一下(我从您的问题中了解的内容)-
SELECT agent_id, (SUM(amount)+sum(cheque)) As total FROM bill WHERE YEAR(date) = YEAR(CURDATE()) AND MONTH(date) = MONTH(CURDATE()) GROUP BY agent_id";
Sure can, your query would just look like this: 当然可以,您的查询如下所示:
SELECT agent_id, SUM(amount + cheque)
FROM bill
WHERE YEAR(date) = YEAR(CURDATE())
AND MONTH(date) = MONTH(CURDATE())
GROUP BY agent_id
SELECT agent_id, (SUM(amount) + SUM(cheque)) AS total_amount
FROM bill WHERE YEAR(date) = YEAR(CURDATE()) AND MONTH(date) = MONTH(CURDATE())
GROUP BY agent_id
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