SQL-做任何数字范围重叠

我有一个有数字范围列表的表。我需要知道，如果这些号码的范围重叠海誓山盟SQL-做任何数字范围重叠

例如，最后两行的小提琴重叠海誓山盟。我不确定你会如何在查询结果中显示。

任何帮助，将不胜感激。

编辑：如果不知道这会工作，但似乎是：

SELECT 
    * 
FROM 
(
    SELECT 
    FROM_NUM, 
    TO_NUM, 
    LEAD(FROM_NUM) OVER (ORDER BY FROM_NUM) A 
    FROM 
    RANGES 
) RANGES 
WHERE 
    A < TO_NUM

来源

2013-10-11 Lock

在技术上并不'INSERT INTO范围内的值（2501,2501）'重叠呢？ –

他们与彼此重叠，但不是其他行，所以我不关心这些。 – Lock

SELECT RANGES.FROM_NUM AS BASE_FROM_NUM, RANGES.TO_NUM AS BASE_TO_NUM, 
    OVERLAP.FROM_NUM AS OVERLAP_FROM_NUM, OVERLAP.TO_NUM AS OVERLAP_TO_NUM 
FROM RANGES 
INNER JOIN RANGES OVERLAP 
ON (((OVERLAP.FROM_NUM <= RANGES.FROM_NUM) AND (OVERLAP.TO_NUM >= RANGES.FROM_NUM)) 
OR ((OVERLAP.FROM_NUM <= RANGES.TO_NUM) AND (OVERLAP.TO_NUM >= RANGES.TO_NUM))) 
AND ((OVERLAP.FROM_NUM <> RANGES.FROM_NUM) AND (OVERLAP.TO_NUM <> RANGES.TO_NUM))

最后一行才停止行报告重叠自己。在实践中，您将使用唯一的密钥删除它们（以防万一你有相同的重复的行从/到数字）：

AND (OVERLAP.ID <> RANGES.ID)

来源

2013-10-11 02:08:37

SQL-做任何数字范围重叠

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