枚举N行N列的自然数列

数据库环境：SQL SERVER 2005

现有一个需求，要枚举1-50个自然数，分10行5列展示。如图，

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WfCo6WkmO9VqnUbDcfJYtyhYrSuKjEqF6rvmy7a7SaK8n79VotJeUJD+aUmu3mpJTUcPkvXadUg91ujtay7Y7Raq4krzvnw7xSdZYBP6Vmu7kpOVW1DZ4QHnsz2mqOaq31a/tuaxlXlbRztUNp9XIphWxVy3tFqy/gPTeGMDGoMq4VXT/xilZdySBXs0rpl81v/0qla1/SQ8mtleqPMZRqsIcPTOP0WhUl5Yr0HUpRHlo2Lpt9H77XWsl0ItRY77UiRyt9OeJxPq4opVZBjuPOJ45KLq3E0RhUGkMlBEZLQCUEKiEwWgIqIVAJgdESUAmBSgiMloBKCFRCyKNVL0QmhMwjouUY6whQCYFKCIyWgEoIVEJgtARUQqASAqMloBIClRDwaIlBRofUrg+bQ4zx8l6pJFPKB36qaU210moVplrefU6BSrl+nJVKiuL5g1YoGuyhvOjaYnH5GSX5udpOmlASI6n9VoWMNadAsd1Q62sty9JauPydBuvuIVl0rT1ryQ6lhGTNSlelsgLRW0lv9gdUqYxPoFUhC6OjFvbs7aFi1XSTAo691fI+VcalUjouP0YBv9rsD6hSUa5/1NE7qxQkWrVV0y8XgzmdcKUV1ZPxtNLzSNLt4qeUlGZ/QJWKcv3fOlrV8m/3VXo/YE4Bp7uInlKC503ysiwvq9DRUr7XqhVdJ3czMUrTLWRmlbwOmo5S9lXHwudlbZPI91pGTwjrt+WhStMNkjU5p4Br314q6c3+ACpVyvVDPyG0eq8lfvUY77VyJf2HK1NKQebKrip5zZVdluvHea9ltO0IUAmBSgiMloBKCFRCYLQEVEKgEgKjJaASApUQGC0BlRCohJBHq16ITAiZJEuaaa9FyO8Do0WICowWISr8H57xi/1dc4/WAAAAAElFTkSuQmCC" 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解题思路：

1.利用数字辅助表，枚举1-50的自然数列

2.将数字集进行行转列，对5求余作为转列的条件，并按照整除5分组

SQL实现

/*枚举1-50的自然数列*/
WITH    x0
          AS ( SELECT   number
               FROM     master..spt_values
               WHERE    type = 'P'
                        AND number >= 1
                        AND number <= 50
             )
    /*行转列*/
    SELECT  ( number - 1 ) / 5 + 1 AS 行号 ,
            MAX(CASE WHEN number % 5 = 1 THEN number
                END) AS 第一列 ,
            MAX(CASE WHEN number % 5 = 2 THEN number
                END) AS 第二列 ,
            MAX(CASE WHEN number % 5 = 3 THEN number
                END) AS 第三列 ,
            MAX(CASE WHEN number % 5 = 4 THEN number
                END) AS 第四列 ,
            MAX(CASE WHEN number % 5 = 0 THEN number
                END) AS 第五列
    FROM    x0
    GROUP BY ( number - 1 ) / 5

很简单。

（本文完）