java – 怎样对具有差异也许性的单个列的记录求和？

我有一个mysql查询：

SELECT count(*) as `present_days` 
FROM  tbl_intime_status 
WHERE employee_status = 'Out' and 
      present_status = 'Full Day' and 
      date LIKE '%/"+month2+"/"+year1+"' and 
      employee_id="+ EmpId+

从这个查询我没有.全天礼品.

我有present_status =’半天’& present_status =我的数据库记录中的’全天’.

怎样计较’全天”半天’？

SELECT present_status,count(*) as `present_days` 
FROM  tbl_intime_status 
WHERE employee_status = 'Out' and 
      present_status IN ('Full Day','Half Day')
      date LIKE '%/"+month2+"/"+year1+"' and 
      employee_id="+ EmpId+
GROUP BY present_status

假如你想要两者的总数这样做

SELECT count(*) as `present_days` 
FROM  tbl_intime_status 
WHERE employee_status = 'Out' and 
      present_status IN ('Full Day','Half Day')
      date LIKE '%/"+month2+"/"+year1+"' and 
      employee_id="+ EmpId+

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