If you need "real-time" access to SQL Server data from within Oracle, then look at implementing Oracle's Heterogeneous Services (HS). With HS, you can have an Oracle connect to SQL Server through ODBC and query the data through a database link.
Dig Deeper on Oracle database export, import and migration
Related Q&A from Brian Peasland
Oracle expert Brian Peasland answers one reader's question about common pitfalls when connecting Oracle to outside programs. Continue Reading
One reader asks expert Brian Peasland a question about datafile sizes with the Oracle RMAN duplicate 10g command. Continue Reading
Managing parent table-child table relations in Oracle SQL environments is key to efficient programming. Continue Reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.