Hello Mark,
in Versions of MySQL prior to 5.0.2 it is only checked that the
year-part ranges from 1000-9999, the month-part from 1-12 and the
day-part ranges from 1-31 within the date column.
With 5.0.2 of MySQL the Dates must be legal, so 2006-02-31 is no more
possible by default. You can however turn on that behavior again by
using |the option ALLOW_INVALID_DATES when starting the MySQL Server.
So, either you take care that valid dates are entered in your Column by
checking before inserting data with your favorite scripting/programming
language or upgrade to MySQL 5.0.2 which however will prevent you from
inserting invalid dates in the first place.
Greets
Rocco
|
Mark wrote:
Dear MySQL-ers,
Using MySQL 4.1.20, in the function DAYOFWEEK(), why does MySQL accept a
bogus date like '2006-02-30'? It says the 30th of February (yeah, right)
starts on a the 5th day.
I was going to use this to create a table of how many days there are in
each month, but that's completely unusable now.
Thanks,
- Mark
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