SQL服務器：選擇多列

Question

我有這個疑問：

SELECT * 
FROM tbl_feedback 
ORDER BY id DESC 

我只想選擇其中列「狀態」處於串/ VARCHAR「完成」和列「類型」是「錯誤」。

Answer 1

非常簡單

SELECT 
* 
FROM tbl_feedback 
WHERE 
    [status] = 'done' 
    AND [type] = 'bug' 
ORDER BY id DESC 

Answer 2

只是一個快速的猜測 - 瞭解更多詳情，請提供表模式和一些演示數據。

SELECT * FROM tbl_feedback WHERE [status] = 'done' AND [type] = 'bug' ORDER BY id DESC 

Answer 3

這很簡單，你需要在where子句中添加條件。

SELECT * 
FROM tbl_feedback 
WHERE status = 'done' and type= 'bug' 
ORDER BY id DESC 

這裏是SQL FIDDLE與

玩你也可以使用列名濾除只選擇所需列

SELECT status, type 
FROM tbl_feedback 
WHERE status = 'done' and type= 'bug' 
ORDER BY id DESC