Can MySQL Handle Dates Before 1000 AD?

Can MySQL Store Historical Dates Prior to 1000 AD?

While the question you raise seems straightforward, the topic of historical date storage in MySQL unveils a range of complexities.

MySQL's Range Limitation

Technically, MySQL can accommodate dates with a 4-digit year, including the year 1200 you mentioned. However, this seemingly straightforward solution may pose issues in the future. If you require dates earlier than 1000 AD, the timestamp format becomes unreliable.

Unsuitability of Timestamps for Historical Dates

Timestamps are unsuitable for representing historical dates for several reasons. Firstly, the limited range is arbitrary and can break if you need to store earlier dates. Secondly, the focus on precision rather than range makes them less optimal for historical dates, where precision is less crucial.

Alternative Approach: Modeling Historical Dates

Instead of relying on timestamps, it's recommended to create your own algorithm or use an alternative database that provides better support for historical dates.

Creating Your Own Algorithm

If you choose to implement your own algorithm, you'll need to define a "tick interval" and "epoch point" to represent dates numerically. Keep in mind the intricacies of Julian and Gregorian calendars, leap years, and the lack of a year 0.

Considerations

Regardless of the approach you choose, you'll encounter challenges with text representation, sorting, and comparisons involving negative dates. These complexities stem from the shifting calendar rules and the requirement for order-of-magnitude representation.

Ultimately, the best solution for your specific needs will depend on the range of dates you require and the level of precision necessary. Carefully consider the limitations and advantages of each approach before making a decision.

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