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Date and time conversion is hard in databases: `conversion error from string “30-12-1899″`

Posted by jpluimers on 2018/11/21

Converting string literals to to date/time/timestamp related data is always tricky in many Database environments.

Firebird is no exception, especially because sometimes it truncates a zero time portion from a date-time/timestamp.

So you can get this:

select cast('30-12-1899' as TimeStamp)
from rdb$database

Throwing an error:

conversion error from string "30-12-1899"

And this:

select cast('30.12.1899' as TimeStamp)
from rdb$database


30-12-1899 0:00:00


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