I'd suppose that these statements are generally accepted:
A data type is a set of values.
So any value that belongs to that set is said to "have" or "belong to" that data type.
And any column which is defined as "of" that data type is going to contain values which have that data type, only.
For example a column C may be defined as of type INTEGER and will only contain values which belong to the set of integers.
And now for the exceptions, details, caveats, and errors.
What is synonymous with data type?
There are no synonyms; no other term should ever be used.
Not datatype. …[Read more...]