Oracle EXTRACT Function: Syntax & Uses

The EXTRACT function in Oracle is used to extract specific parts of a date and time value, such as year, month, day, hour, minute, etc. The syntax of the EXTRACT function is as follows:

Retrieve the unit portion from the date_value.

“unit can take one of the following values:”

1. The passing of time in a twelve-month period
2. a period of time lasting approximately 30 days
3. One option: “A period of 24 hours”
4. Time that indicates one hour of time.
5. a unit of time equivalent to sixty seconds
6. next

The EXTRACT function makes it easy to extract specific parts from a date/time value for further processing and analysis. For example, you can use the EXTRACT function to calculate the month of a date or extract the hour portion of a time. This is very useful for writing complex SQL queries or generating reports.