redbean - 将mysql查询转换为redbean查询

Question

谁能帮我将此mysql查询转换为redbean查询？

SELECT category,sum(price) from transaction GROUP BY category.

Answer 1

我们可以像这样使用

$results = R::getAll( 'SELECT category,sum(price) from transaction GROUP BY category' ); 
// $results is multidimensional array

这是参考链接：http ://www.redbeanphp.com/queries

Answer 2

更好的转换是：

$sql = "SELECT category, sum(price) FROM transaction GROUP BY category";

$transactions = R::getAll($sql);

Answer 3

你不需要转换任何东西。你只需写：

$transactions = R::get("SELECT category,sum(price) from transaction GROUP BY category");