SQL order by和insert to each row position number

Question

是否可以使用order by选择查询，并因此插入每列位置的新列？

例如我有表：

Name
-------
A
D
D
B
C
B

因此我想有桌子：

Name Position
-------------
A 1
D 4
D 4
B 2
B 2
C 3

感谢您的帮助

Answer 1

使用DENSE_RANK

SELECT Name ,
    DENSE_RANK() OVER (ORDER BY Name) AS 'Position'
    FROM Table

这将产生

Name Position
-------------
A   1
B   2
B   2
C   3
D   4
D   4

因此可能难以保持原始排序

Answer 2

使用row_number

SELECT name,ROW_NUMBER() OVER(ORDER BY name) as Position
 FROM YourTable

Answer 3

SELECT 
    Name, 
    ROW_NUMBER() OVER(ORDER BY Name) AS POSITION 
FROM Table_1

Answer 4

SELECT Name, DENSE_RANK() OVER (ORDER BY Name) AS 'Position' 
FROM Table