Question

mytable：

name     family
-----------------
a        aa
b        bb
c        cc
d        dd

我想要的SQL代码输出（按方向选择）：

Row   name     family
-----------------
1     a        aa
2     b        bb
3     c        cc
4     d        dd

Answer 1

使用ROW_NUMBER()函数，它是SQL Server中的Ranking Functions之一：

WITH CTE
(
   SELECT
     ROW_NUMBER() OVER(ORDER BY name) AS row, 
     name, 
     family
   FROM tablename
)
SELECT * FROM CTE;

Answer 2

试试这个 -

<强>查询：

DECLARE @temp TABLE
(
      name VARCHAR(20)
    , family VARCHAR(50)
)

INSERT INTO @temp (name, family)
VALUES 
    ('a', 'aa'),
    ('b', 'bb'),
    ('c', 'cc'),
    ('d', 'dd')

SELECT
      [Row] = ROW_NUMBER() OVER(ORDER BY (SELECT 1))
    , name
    , family
FROM @temp

<强>输出：

Row   name    family
----- ------- -------
1     a       aa
2     b       bb
3     c       cc
4     d       dd

sql命令自动创建行号

2 个答案: