Oracle Lite coalesce function

Question

Hello everybody,
Coalesce functions does not exists in Oracle Lite?
How can I have the same behavior?
Thanks

Answer 1

You would have to code a java stored procedure your self.
You could use the coalesce function in an SQL statement as follows:
SELECT coalesce( address1, address2, address3 ) result
FROM suppliers;
The above coalesce statement is equivalent to the following IF-THEN-ELSE statement:
IF address1 is not null THEN
result := address1;
ELSIF address2 is not null THEN
result := address2;
ELSIF address3 is not null THEN
result := address3;
ELSE
result := null;
END IF;