如何將列的值增加到其他列中值的特定範圍？

Question

現有的表是這樣的：

tmc   speed 
ABC   55 
DEF   55 

我想創建一個表像下一個2008年使用現有的表中的SQL Server：

tmc   speed 
ABC   55 
ABC   56 
ABC   57 
ABC   58 
ABC   59 
ABC   60 
DEF   55 
DEF   56 
DEF   57 
DEF   58 
DEF   59 
DEF   60 

我開發的代碼沒有顯示我的我想要的確切結果。任何幫助將不勝感激。我用來解決這個問題

代碼：

; WITH mycte AS 
(SELECT [tmc_code], [speed] FROM table_1 
    UNION ALL 
    SELECT [tmc_code], [speed]+1 FROM table_1 WHERE [speed]+1 <=60) 
SELECT [tmc_code], [speed] FROM mycte 

Answer 1

您正在尋找這樣的事情？

;WITH mycte AS (
    SELECT 1 n 
    UNION ALL 
    SELECT n + 1 FROM mycte WHERE n < 100 
) 
SELECT tmc_code, speed + n - 1 speed 
    FROM table1 CROSS JOIN mycte 
WHERE mycte.n BETWEEN 1 AND 6 
ORDER BY tmc_code, speed 

輸出：

 
| TMC_CODE | SPEED | 
|----------|-------| 
|  ABC | 55 | 
|  ABC | 56 | 
|  ABC | 57 | 
|  ABC | 58 | 
|  ABC | 59 | 
|  ABC | 60 | 
|  DEF | 55 | 
|  DEF | 56 | 
|  DEF | 57 | 
|  DEF | 58 | 
|  DEF | 59 | 
|  DEF | 60 | 

這裏是SQLFiddle演示

Answer 2

考慮一個持久的數字表，it can have many uses，包括你現在的問題。

隨着數字表，你可以做到以下幾點：

SELECT 
    t.tmc_code, 
    speed = t.speed + n.Number 
FROM table_1 AS t 
INNER JOIN numbers AS n ON n.Number BETWEEN t.speed AND t.speed + 5 
;