Datetime and Interval Data Types

The OLAP DML has data types that correspond to SQL datetime and interval data types. As outlined in Table: OLAP DML Datetime and Interval Data Types and the Corresponding SQL Data Types, the names of the data types are different in OLAP DML than they are in SQL.

Table 2-6 OLAP DML Datetime and Interval Data Types and the Corresponding SQL Data Types

OLAP DML Data Type	Corresponding SQL Data Type
`DATETIME`	`DATE`
`TIMESTAMP`	`TIMESTAMP`
`TIMESTAMP_TZ`	`TIMESTAMP WITH TIMEZONE`
`TIMESTAMP_LTZ`	`TIMESTAMP WITH LOCAL TIME ZONE`
`DSINTERVAL`	`INTERVAL DAY TO SECOND`
`YMINTERVAL`	`INTERVAL YEAR TO MONTH`

In the OLAP DML, the datetime data types are DATETIME, TIMESTAMP, TIMESTAMP_TZ, and TIMESTAMP_LTZ. The interval data types are YMINTERVAL and DSINTERVAL. Both datetimes and intervals are made up of fields as discussed in "Datetime and Interval Fields".

Note:

The Oracle OLAP DML has a date data type named DATE that does not correspond to the SQL data type of that name. (The OLAP DML DATE data type was implement before the SQL datetime and interval data types were implemented in the OLAP DML.) The OLAP DML DATE data type stores only date values (no time values) and is therefore sometimes referred to as the DATE-only data type.