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是否可以使用BETWEEN语句作为LEFT JOIN的条件?SQL左连接(条件之间)
SELECT Table_1.*, Table_2.*
FROM Table_1 LEFT JOIN Table_2
ON Table_1.value BETWEEN Table_2.Value_1 AND Table_2.Value_2
是否可以使用BETWEEN语句作为LEFT JOIN的条件?SQL左连接(条件之间)
SELECT Table_1.*, Table_2.*
FROM Table_1 LEFT JOIN Table_2
ON Table_1.value BETWEEN Table_2.Value_1 AND Table_2.Value_2
没错,是的,但你需要从Table_1
指定列名,如下所示:
SELECT Table_1.*, Table_2.*
FROM Table_1 LEFT JOIN Table_2
ON Table_1.Value BETWEEN Table_2.Value_1 AND Table_2.Value_2
感谢您的确认。我前一段时间想到了它。我的查询不会返回任何错误,但也不会返回任何结果。问题来自我用于between语句的日期。我忘了将它们转换成时间。傻我。大声笑。 – ELM
'ON Table_1 BETWEEN'没有返回任何错误? Table_1或Table_2是否也有一个名为'Table_1'的列?如果没有,那么一个无效的列错误(消息207)肯定应该是结果... –
对不起@Aaron我的错误。这应该是Table_1.Value。 – ELM