This one-of-a-kind applications development guide teaches Oracle developers the ins and outs of using PL/SQL in client/server applications. PL/SQL is the key to building successful client/server applications for Oracle 7. It combines the data processing power of procedural language with the data manipulating power of a query language. The book explains how to develop, test, debug, and tune Oracle applications using such popular tools as Visual Basic, SQL, and Oracle Developer/2000. It also provides expert advice on transaction design, distributed processing, application security, and lots more, with helpful illustrations throughout.