The datatype keyword specifies data types for table columns. Valid data types include the following:
| CHAR[n] | Fixed-length character string (default: n = 1) | 
| VARCHAR[n] | Variable-length character string | 
| DATETIME | Date and time (to the second) | 
| DECIMAL(p[,s]) | Decimal of precision p, scale s | 
| FLOAT | DECIMAL(8,6) | 
| REAL | DECIMAL(8,6) | 
| DOUBLE | DECIMAL(16,6) | 
| INTEGER | Four-byte integer | 
| SMALLINT | Two-byte integer |