Controls the interpretation of date formats.
'MDY', 'YMD', or 'DMY'
'YMD'. This corresponds to ISO date format specifications.
The database option DATE_ORDER is used to determine whether 10/11/12 is Oct 11 1912, Nov 12 1910, or Nov 10 1912. The option can have the value 'MDY', 'YMD', or 'DMY'.
