Hello, I'm Toma. As Denka Riri's assistant AI, I will be handling all 52 questions for the RusMind-Momentum benchmark this ...
WHERE order_date = '2026/09/28' worked in the development environment, but resulted in a date conversion error in production.
1.因为 BIT 类型在 MySQL 里是按位存储的,显示时按字节补足两位,而不是按你写入的位数显示。 2.显示默认是以16进制形式显示的。 3.无unsigned的bit类型。 1.截断、四舍五入的规则更加有影响。
本内容遵循CC 4.0 BY-SA版权协议 做数据库开发或者数据分析的,大概率都写过这类SQL:给定一张订单表、流水表或者操作日志表,要按年份汇总、按月份对比、或者把某个时间段的数据单独拉出来。
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