Firebird中的简单选择失败

Question

我想要做的就是选择两个日期之间的记录到第二精度(在YYYY-MM-DD HH:II:SS和YYYY-MM-DD HH:II:SS之间).包含日期和时间的字段采用TIMESTAMP格式.我甚至无法按日期选择记录.

查询

SELECT *
FROM INVOICE
WHERE CAST(INVOICE.WHENINVOICED AS DATE) = CAST('2010-10-15' AS DATE)
ORDER BY INVOICE.WHENINVOICED ASC

不返回任何记录,也没有错误.此日期存在记录.

Answer 1

SELECT * FROM INVOICE 
WHERE WHENINVOICED 
BETWEEN '2010-01-01' AND  '2010-10-15'
ORDER BY WHENINVOICED ASC

您不需要强制转换类型.WhenInvoiced是一个日期类型列的课程？