SQLserver中cube：多维数据集实例详解

1、cube:生成多维数据集，包含各维度可能组合的交叉表格，使用with 关键字连接 with cube

根据需要使用union all 拼接

判断 某一列的null值来自源数据还是 cube 使用GROUPING关键字

GROUPING([档案号]) = 1 ： null值来自cube（代表所有的档案号）
GROUPING([档案号]) = 0 ： null值来自源数据

举例：

SELECt * INTO ##GET
FROM 
  (SELECt *
    FROM ( SELECt
      CASE
      WHEN (GROUPING([档案号]) = 1) THEN
      '合计'
      ELSE [档案号]
      END AS '档案号',
      CASE
      WHEN (GROUPING([系列]) = 1) THEN
      '合计'
      ELSE [系列]
      END AS '系列',
      CASE
      WHEN (GROUPING([店长]) = 1) THEN
      '合计'
      ELSE [店长]
      END AS '店长', SUM (剩余次数) AS '总剩余',
      CASE
      WHEN (GROUPING([店名]) = 1) THEN
      '合计'
      ELSE [店名]
      END AS '店名'
    FROM ##PudianCard
    GROUP BY [档案号], [店名], [店长], [系列]
    WITH cube
    HAVINg GROUPING([店名]) != 1
 AND GROUPING([档案号]) = 1 --AND GROUPING([系列]) = 1 ) AS M
    UNIOn
    ALL 
      (SELECt *
 FROM ( SELECt
   CASE
   WHEN (GROUPING([档案号]) = 1) THEN
   '合计'
   ELSE [档案号]
   END AS '档案号',
   CASE
   WHEN (GROUPING([系列]) = 1) THEN
   '合计'
   ELSE [系列]
   END AS '系列',
   CASE
   WHEN (GROUPING([店长]) = 1) THEN
   '合计'
   ELSE [店长]
   END AS '店长', SUM (剩余次数) AS '总剩余',
   CASE
   WHEN (GROUPING([店名]) = 1) THEN
   '合计'
   ELSE [店名]
   END AS '店名'
 FROM ##PudianCard
 GROUP BY [档案号], [店名], [店长], [系列]
 WITH cube
 HAVINg GROUPING([店名]) != 1
     AND GROUPING([店长]) != 1 ) AS P )
 UNIOn
 ALL 
   (SELECt *
     FROM ( SELECt
CASE
WHEN (GROUPING([档案号]) = 1) THEN
'合计'
ELSE [档案号]
END AS '档案号',
CASE
WHEN (GROUPING([系列]) = 1) THEN
'合计'
ELSE [系列]
END AS '系列',
CASE
WHEN (GROUPING([店长]) = 1) THEN
'合计'
ELSE [店长]
END AS '店长', SUM (剩余次数) AS '总剩余',
CASE
WHEN (GROUPING([店名]) = 1) THEN
'合计'
ELSE [店名]
END AS '店名'
     FROM ##PudianCard
     GROUP BY [档案号], [店名], [店长], [系列]
     WITH cube
     HAVINg GROUPING([店名]) != 1
  AND GROUPING([店长]) != 1 ) AS W )
     UNIOn
     ALL 
(SELECt *
  FROM ( SELECt
    CASE
    WHEN (GROUPING([档案号]) = 1) THEN
    '合计'
    ELSE [档案号]
    END AS '档案号',
    CASE
    WHEN (GROUPING([系列]) = 1) THEN
    '合计'
    ELSE [系列]
    END AS '系列',
    CASE
    WHEN (GROUPING([店长]) = 1) THEN
    '合计'
    ELSE [店长]
    END AS '店长', SUM (剩余次数) AS '总剩余',
    CASE
    WHEN (GROUPING([店名]) = 1) THEN
    '合计'
    ELSE [店名]
    END AS '店名'
  FROM ##PudianCard
  GROUP BY [档案号], [店名], [店长], [系列]
  WITH cube
  HAVINg GROUPING([店名]) = 1
      AND GROUPING([店长]) = 1
      AND GROUPING([档案号]) = 1 ) AS K ) ) AS T

2、rollup:功能跟cube相似

3、将某一列的数据作为列名，动态加载，使用存储过程，拼接字符串

DECLARE @st nvarchar (MAX) = '';SELECt @st =@st + 'max(case when [系列]=''' + CAST ([系列] AS VARCHAR) + ''' then [总剩余] else null end ) as [' + CAST ([系列] AS VARCHAR) + '],'
FROM ##GET
GROUP BY [系列]; print @st;

4、根据某一列分组，分别建表

SELECt
				'select ROW_NUMBER() over(order by [卡项] desc) as [序号], [会员],[档案号],[卡项],[剩余次数],[员工],[店名] into ' + ltrim([店名]) + ' from 查询 where [店名]=''' + [店名] + ''' ORDER BY [卡项] desc'
		FROM
			查询
		GROUP BY
			[店名]

总结

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