title: What to use in DB2 for CURRENT_TIMESTAMP?
body: <p>I am converting some of my MySQL statements to DB2 database, but I faced a problem on the following query</p>
  
  <pre><code>CREATE TABLE RFX_EVENT_MAPPING (
    EVENT_TYPE varchar(4) NOT NULL,
    EVENT_DESC varchar(50) NOT NULL,
    EVENT_CLASS varchar(50) default NULL,
    OWNER varchar(6) default NULL,
    LAST_UPDATE_TIME timestamp NOT NULL default CURRENT_TIMESTAMP on update CURRENT_TIMESTAMP,
    LAST_UPDATE_USER varchar(20) NOT NULL
  ); 
  </code></pre>
  
  <p>As you can see there is</p>
  
  <pre><code>LAST_UPDATE_TIME timestamp NOT NULL default CURRENT_TIMESTAMP on update CURRENT_TIMESTAMP
  </code></pre>
  
  <p>Which is not working so how can I achieve the same functionality with db2?</p>