1, binary data type
Binary、Varbinary、Image
2. Character data type
Char, Varchar and Text?
3.Unicode data types
Including Nchar, Nvarchar, Ntext?
4. Date and time data types
Include date time, small date time, date and time stamp.
5. What is a digital data type?
Digital data types include positive and negative numbers, decimals and integers?
6. Currency data type
Represents a positive or negative amount.
7. Special data types
There are three special data types, namely timestamp, bit and unique identifier.