SQL & PL/SQL

In SQL Server, if I need to add a new datetime column in my query to display the current time, I always do:

SELECT *, GETDATE() EXECUTION_TIME

FROM TABLE_1;

I know in PL/SQL we can do SELECT SYSDATE FROM DUAL;

I tried to do the following query:

SELECT *, SYSDATE EXECUTION_TIME

FROM TABLE_1;

but Oracle SQL returned:

ORA-00923: FROM keyword not found where expected

00923. 00000 -  "FROM keyword not found where expected"

What's the correct syntax to do

SELECT *, GETDATE() EXECUTION_TIME

FROM TABLE_1;

in PL/SQL?