Each column in a table is associated with a data type. Data types specify what kind of values will be stored in the column. Teradata supports several data types. Following are some of the frequently used data types.
| Data Types | Length (Bytes) | Range of values |
|---|---|---|
| BYTEINT | 1 | -128 to +127 |
| SMALLINT | 2 | -32768 to +32767 |
| INTEGER | 4 | -2,147,483,648 to +2147,483,647 |
| BIGINT | 8 | -9,233,372,036,854,775,80 8 to +9,233,372,036,854,775,8 07 |
| DECIMAL | 1-16 | |
| NUMERIC | 1-16 | |
| FLOAT | 8 | IEEE format |
| CHAR | Fixed Format | 1-64,000 |
| VARCHAR | Variable | 1-64,000 |
| DATE | 4 | YYYYYMMDD |
| TIME | 6 or 8 | HHMMSS.nnnnnn or HHMMSS.nnnnnn+HHMM |
| TIMESTAMP | 10 or 12 | YYMMDDHHMMSS.nnnnnn or YYMMDDHHMMSS.nnnnnn +HHMM |