我如何组合两个将计算行数的查询？

Question

我怎样才能将这两个查询合并为一个提前谢谢你。

$mayorcountqry = $conn->prepare("SELECT VOTE_STATUS FROM voters where VOTE_STATUS = ? AND prcnt_no = ? ");
$mayorcountqry->execute([$MAYOR,$prcnt_no]);
$countmayor = $mayorcountqry->rowCount();   
                                        
$triocountqry = $conn->prepare("SELECT VOTE_STATUS FROM voters where VOTE_STATUS = ? AND prcnt_no = ? ");
$triocountqry->execute([$TRIO,$prcnt_no]);
$triocount= $triocountqry->rowCount();

Answer 1

你试过SQL联盟吗？

句法：

SELECT column_name(s) FROM table1
UNION
SELECT column_name(s) FROM table2;

然后你可以只计算每个。