通過SQL中的查詢獲取所有員工

Question

我有一個查詢，它爲我提供了Comp_mkey = 7 and 110的數據。查詢是如下

SELECT DISTINCT m.comp_mkey, 
      c.company_name, 
      m.start_date, 
      m.End_date, 
      m.Process_date, 
      m.Months_days, 
      m.Process_year, 
      m.Process_Month FROM emp_mst e, 
      company_mst c, 
      P_Monthly_Must_Para_Hdr m WHERE c.mkey = e.comp_mkey 
      AND m.comp_mkey = e.comp_mkey 
      AND (m.process_date IS NOT NULL 
      AND (convert(varchar,(getDate()),103)) = convert(varchar,m.process_date + 1, 103)) 
      AND m.Process_year = 2016 
      AND Process_month = 2 

查詢的輸出是如下： -

現在我想的是，

所有僱員的姓名，其comp_mkey是7，110

請讓我知道如何獲取

我使用​​

Answer 1

對於剛剛名

SELECT DISTINCT e.Emp_name 
FROM emp_mst e 
WHERE e.comp_mkey IN ('7', '110') 

就像你說的使用IN

SELECT DISTINCT m.comp_mkey, c.company_name, m.start_date, m.End_date, m.Process_date, m.Months_days, m.Process_year, m.Process_Month 
FROM emp_mst e, company_mst c, P_Monthly_Must_Para_Hdr m 
WHERE c.mkey = e.comp_mkey 
AND m.comp_mkey = e.comp_mkey 
AND (m.process_date IS NOT NULL 
AND (convert(varchar,(getDate()),103)) = convert(varchar,m.process_date + 1, 103)) 
AND m.Process_year = 2016 
AND Process_month = 2 
AND m.comp_mkey IN ('7', '110') 

你也應該用明確的像這樣加入。

SELECT DISTINCT m.comp_mkey, c.company_name, m.start_date, m.End_date, m.Process_date, m.Months_days, m.Process_year, m.Process_Month 
FROM emp_mst e 
INNER JOIN company_mst c ON c.mkey = e.comp_mkey 
INNER JOIN P_Monthly_Must_Para_Hdr m ON m.comp_mkey = e.comp_mkey 
WHERE (m.process_date IS NOT NULL 
AND (convert(varchar,(getDate()),103)) = convert(varchar,m.process_date + 1, 103)) 
AND m.Process_year = 2016 
AND Process_month = 2 
AND m.comp_mkey IN ('7', '110')