Distributed dvlpment on WAS: Need to keep the local & svr DBs the same?

in our distributed development environment where we have local PC development of J2EE apps and a central Sun server hosting these apps for development, testing and production, we find that there is an inconsistency with the database with the fact that our central server uses Oracle and our local PC uses MaxDB.
since we are using different databases for development and production respectively, we would be
1) Forced to write separate SQL for each database, which would be very time consuming, or
2) Use very generic SQL, and handle retrieval logic using code, which would also be very time consuming.
The reason being Oracle and MaxDB both have different keywords and syntaxes. I did a quick search for both Oracle and MaxDB keywords, and found that the following commonly used keywords in Oracle does not exist in MaxDB.
     GROUP BY
     DISTINCT
     LIKE
     BETWEEN
     UNION
Question:
1) Doesn't SQLJ abstract out the different database programming specifics? We did a test and we found that EXCEPT works for MaxDB but not for Oracle (had to use MINUS)
2) Does that mean that it is better for me to ensure that BOTH my PC development and server development utilise the SAME database (ie oracle?). If this is the case, will there be a licencing issue to ensure I get Oracle to my PCs too?
Cheers

Hi,
To ensure that your code runs properly on both DBs, you should use the SQL grammar defined by the Open SQL for Java framework. It is based on an SQL subset, which is relevant for all databases that SAP supports. For more information about the Open SQL grammar, see the following documentation: http://help.sap.com/saphelp_nw04/helpdata/en/9b/f46cabaa874bc9a82234e8cf1d0696/frameset.htm
However, note that you can only use the Open SQL for Java framework (which includes Open SQL/SQLJ) with the Java database schema of the Web AS itself. If you connect to another db schema, you should use the Native SQL layer of the framework. You can have a look at the Java Persistence documentation for more details on this: http://help.sap.com/saphelp_nw04/helpdata/en/2d/23b32e8c0152469edf07909703fe03/frameset.htm.
I hope this answers your questions.
Zornitsa

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