A column can have a different datatype. Datatypes are often RDBMS
dependent, but there are often equivalent types with a slightly
different name.
The following types are often available:
- integer: to store integral numbers
- float: to store floating point values
- varchar: to store variable length strings
- char: to store fixed length strings
- date: to store dates
- timestamp: to store timestamps
- blob: to store (large) amounts binary data
- clob or text: to store (large) amounts of text