Newbie Question I'm sure, but...
I'm very new to Oracle and I'm really looking for a quick answer. I would also appreciate an example of how to do this, but...
My problem is that I want to be able to create a new record in TableB when a new record is created in TableA. In other words, automated synchronization of the two tables, but I need to be able to select certain fields from TableA and be able to add new fields for entry into TableB at the same time. Here's my example...
A new record in TableA is created on 9/24/2004 10:04:01AM as such:
EmplID First Last Dept
000001 Bob Saucier Sales
I need to create a new record in TableB with the following:
EmplID First Last Date
000001 Bob Saucier 9/24/2004
Hopefully I've explained this well enough that someone could help me out. Will a trigger work in this case or is there a better way? And how do I do it?
yes, a trigger would be the way to go. many, many examples at http://tahiti.oracle.com.
take this example >>>>>
consider you had a table created as follows:
CREATE TABLE abc
(empid number(4), ename varchar2(20));
We could then create a BEFORE INSERT trigger as follows:
CREATE OR REPLACE TRIGGER abc_before_insert
FOR EACH ROW
/*u can keep audit of the same table by */
INSERT INTO Audit (eid, OldValue, NewValue) VALUES (
eid, :OLD.eid, :NEW.eid);
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