What is PostgreSQL equivalent of SYSDATE from Oracle?

Question

I want to perform a query using sysdate like:

select up_time from exam where up_time like sysdate

which is possible in Oracle.

However,

Answer 1

You may want to use statement_timestamp(). This give the timestamp when the statement was executed. Whereas NOW() and CURRENT_TIMESTAMP give the timestamp when the transaction started.

More details in the manual