How can we obtain the current time in Oracle?

In Oracle database, you can use either the SYSTIMESTAMP or CURRENT_TIMESTAMP function to retrieve the current timestamp, which includes both the date and time. These functions return the date and time information of the current database server. Here are examples of how to use them:

SELECT SYSTIMESTAMP FROM dual;

Alternatively

SELECT CURRENT_TIMESTAMP FROM dual;

This will return the current date and time. Please note that SYSTIMESTAMP returns the time with timezone information, while CURRENT_TIMESTAMP returns the time without timezone information.