Tag: Oracle

Community

Merging datasets with NULL values

(Carmen Beitzer) The MERGE functionality introduced in Oracle9i offers a simplified, yet powerful enhancement to the commonly known UPSERT approach of earlier editions. Just as its predecessor, MERGE is a valuable functionality when integrating same datasets over time, (i.e. when extracting incremen

Community

J2EE Connector Architecture

(Anthony Lai, Jyotsna Laxminarayanan and Lars Ewe) This article discusses some of the challenges of legacy system integration, then introduces the J2EE Connector Architecture (J2EE CA) and explains how it can significantly reduce the problems of integrating your legacy system. It also offers a compr