Wow, DB2 for LUW 9.5 copycatted almost all the Oracle SQL syntax even inclu

Question

A list of the add-ins per my memory:
1) DUAL;
2) NVL()
3) DECODE()
4) START WITH/CONNECT BY PRIOR/sudo column LEVEL for tree structure SQL that prior DB2 9.5 could not do it in SQL while Oracle does it by just one simple SQL
5)(+) for outer join
6)TO_CHAR()/TO_DATE()/...
7)LPAD/RPAD that might be added in DB2 9 if I did not remember wrong
8)Drop a cloumn from a table
I worry that IBM may get law suit by Oracle?

Answer 1

I actually take it in a light way. I just wonder how
come DB2/UDB 9.5 going so far that it even offers the
outer join operator (+) which is I believe Oracle's
unique syntax. It's not in any standard, right?
Let' just say they want Oracle's business badly not vise versa .
Some of the features you listed that are 'better' than Oracle are questionable
>
1) The way to handle LOB objects that Oracle needs to
the built-in package while DB2 just uses regular SQL
which impressed me a lot.You can imagine the LOB object can be handled by regular SQL is not so Large. What kind of operations you want to use regular SQL to handle anyway? select, update, insert?
2) VALUES()
It can hold consecutive row and columns for inserting
and function as SELECT...INTO too.Not sure exactly what this mean, an example will be nice.
3) OLD/NEW/FINAL TABLE();
e.g., select ... from OLD TABLE (DELETE FROM ...)
select ... from NEW/FINAL (INSERT INTO ... or
UPDATE ... INCLUDE...SET...)Same as above
4) INCLUDE keyword in UPDATE statementSame
5)CASE does offer more comparing than DECODE()Might need some approve
6) The empty string '' which is not NULLDon't Oracle have it the same way?
.........