我只想在 sqlite 中获得非重复行

Question

我有桌子：

+-------+-------+------+----------+
| Name  | Price | Url  | Adress   |
+-------+-------+------+----------+
| John  | Smith | blah | London 1 |
+-------+-------+------+----------+
| John  | Smith | blah | London 1 |
+-------+-------+------+----------+
| Jenny | Cole  | blah | Prague 1 |
+-------+-------+------+----------+

我想得到这个：

+-------+------+------+----------+
| Jenny | Cole | blah | Prague 1 |
+-------+------+------+----------+

我试图用有创建sqlite命令，但没有结果..

Answer 1

;WITH C AS(
    SELECT 'John' AS Name , 'Smith' AS Price , 'blah' AS URL , 'London 1' AS Address
    UNION ALL
    SELECT 'John' AS Name , 'Smith' AS Price , 'blah' AS URL , 'London 1' AS Address
    UNION ALL
    SELECT 'Jenny','Cole' ,'blah' ,'Prague 1'
    UNION ALL
    SELECT 'Jenny','Cole' ,'blah' ,'Prague 2'
    UNION ALL
    SELECT 'Jenny','Cole' ,'blah' ,'Prague 3'  
)
SELECT Name, Price, URL, Address
FROM C
GROUP BY Name, Price, URL, Address
HAVING COUNT(*) = 1;

Answer 2

我想你想要这样的东西：

select Name, Price, Url, Adress
from table t
group by Name, Price, Url, Adress
having count(*) = 1;

Answer 3

Select * From your_table_name
Group By Name, Price, Url, Adress
Having Count(*) = 1;