Final answer:
The maximum width that can be assigned to a DATE column is 10 characters.
Step-by-step explanation:
In SQL, the maximum width that can be assigned to a DATE column varies depending on the specific database system being used. However, in most popular database systems such as MySQL, Oracle, and SQL Server, the maximum width for a DATE column is 10 characters. This means that a DATE column can store a date value in the format 'YYYY-MM-DD', such as '2021-05-25'. The maximum width that can be assigned to a DATE column in most database systems is fixed and does not require a width specification. A DATE column typically stores date data in a format that includes the year, month, and day. For example, in MySQL, the DATE type is formatted as YYYY-MM-DD and it always uses 3 bytes of storage, regardless of the display width. Therefore, one does not assign a maximum width to a DATE column in the same way one would for a VARCHAR or other variable-length data type, as the storage requirement for DATE is fixed and standard across all rows.