Question

我的查询有输出：

Item   Type   Qty
 1       A     2
 2       A     3
 3       B     1
 4       B     2
 5       C     1
 6       D     3

要分组的类型：A，B

我需要我的输出看起来像这样:(在将数量和分组相加之后）

Type      Qty
  A        5
  B        3
OTHERS     4

如果未定义类型，则会将其分组为＆＃39; OTHERS＆＃39;。这是可以使用分析函数完成还是我需要为此创建自己的函数？

Answer 1

假设您的表/视图名称为x，则可以精确地提供所需的输出：

SELECT CASE WHEN type IN ('A', 'B') THEN type ELSE 'OTHERS' END AS type,
       SUM(qty) AS qty
  FROM x
GROUP BY CASE WHEN type IN ('A', 'B') THEN type ELSE 'OTHERS' END
ORDER BY 1

Answer 2

  select type,sum(qty) from (select decode(type,c,'OTHERS',d,'OTHERS') type,qty from your_table) group by type;

                       (or)

  select type,sum(qty) from (select (case when type in ('A','B') then type else 'others' end) type,qty from your_table) group by type;

Oracle查询组的类型

2 个答案: