如何从mysql查询中获取数据结果以及查询返回的行数？

Question

下面的查询返回查询中的所有值，但我还需要将查询返回的总行放在一列中。每行中的值可以相同。

我尝试使用COUNT（），但每行返回1。选择中的“ COUNT（A.MRN）作为ReturnedRows”，然后在何处之后“ GROUP BY A.MRN”

select A.STATUS as ASTATUS, A.MRN as StatusMRN, 
K.transnumber, K.NRM as PatientMRN, K.DESCRIPTION
from  database_name.patientoverlay as K
inner join database_name.patientstatus as A on A.MRN = K.MRN
where A.STATUS like'active' and K.description like '%Overlaypreformed%';

查询返回的内容：

ASTATUS StatusMRN   transnumber   PatientMRN   DESCRIPTION
active  12356789    78000         12356789     Overlay performed
active  12356791    78001         12356791     Overlay performed
active  12356792    78002         12356792     Overlay performed
active  12356793    78003         12356793     Overlay performed
active  12356794    78004         12356794     Overlay performed

我知道Patienttaus表中有110位活跃患者，而他们的MySQL工具指出它返回了110行。

我想得到以下信息：

ASTATUS StatusMRN   transnumber   PatientMRN   DESCRIPTION       ReturnedRows
active  12356789    78000     12356789     Overlay performed     110
active  12356791    78001     12356791     Overlay performed     110
active  12356792    78002     12356792     Overlay performed     110
active  12356793    78003     12356793     Overlay performed     110
active  12356794    78004     12356794     Overlay performed     110