Dear my friends... I created some tables with field timestamp (datatype also timestamp). I mean, I want to have the data when each record inserted or modified in the tables. on MysQL, I just need to define the column (field) with datatype "timestamp" and that's all. each time new record inserted than the timestamp value will be inserted automaticall. also for the data modification, each time the data in the record modified than the value of timestamp column will be modified automatically. How is the behaviour of the timestamp on postgres? I have define the datatype of the column with "timestamp" but each time I inserted a new record into the table than the timestamp column (with datatype "timestamp") stays empty. How can I make the postgres complete the value of the timestamp field automatically? Please let me know. Thank you very much in advance. __________________________________ Do you Yahoo!? New and Improved Yahoo! Mail - 100MB free storage! http://promotions.yahoo.com/new_mail