MYSQL_一條語句中COUNT出不一樣的條件

//利用在一條語句中count出不一樣的條件,記錄一下 .. SELECT SUM( goods_amount ) AS money, count( * ) AS num, count(if(pay_status=1,true,null)) AS success, count(if(pay_status=2,true,null)) AS fall FROM `tab_order_info`

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