| SQL adaptation guide For IBM DB2 UDB 8.x, 9x / Data dictionary | |
Informix® INTERVAL data type stores a value that represents a span of time. INTERVAL types are divided into two classes: year-month intervals and day-time intervals.
DB2® does not provide a data type corresponding the Informix INTERVAL data type.
The INTERVAL data type is not well supported because the database server has no equivalent native data type. However, BDL INTERVAL values can be stored into and retrieved from CHAR columns.