ADD Column ON UPDATE TIMESTAMP I want to alter a table to include modified and created columns. However, I am having trouble with adding the modified column. I get the following error:


  SQL Error: ORA-00907: missing right parenthesis
  00907. 00000 -  "missing right parenthesis"


I was reading this Oracle document (http://docs.oracle.com/cd/E17952_01/refman-5.5-en/timestamp-initialization.html) to get an example on how to properly write the ON UPDATE syntax 

Here is my SQL.

ALTER TABLE FOOBAR
ADD (
  created TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL,
  modified TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
);


Why am I getting a missing right parenthesis error?
That is the MySQL documentation, not the Oracle Database documentation.
There is no such clause in Oracle Datababase. 
Use a trigger. Here is an example: link