Skip Headers

Oracle9i SQL Reference
Release 2 (9.2)

Part Number A96540-02
Go to Documentation Home
Home
Go to Book List
Book List
Go to Table of Contents
Contents
Go to Index
Index
Go to Master Index
Master Index
Go to Feedback page
Feedback

Go to previous page Go to next page
View PDF

INTERVAL Expressions

An interval expression yields a value of INTERVAL YEAR TO MONTH or INTERVAL DAY TO SECOND.

interval_expression::=

Text description of expressions12.gif follows
Text description of interval_expression


The interval_value_expr can be the value of an INTERVAL column or a compound expression that yields an interval value. Datetimes and intervals can be combined according to the rules defined in Table 2-5. The six combinations that yield interval values are valid in an interval expression.

For example, the following statement subtracts the value of the order_date column in the sample table orders (a datetime value) from the system timestamp (another datetime value) to yield an interval value expression:

SELECT (SYSTIMESTAMP - order_date) DAY TO SECOND from orders;