New PDF release: Boucles d'oreilles: Perles de cristal et fantaisie

By Ines Valentin

ISBN-10: 2841672999

ISBN-13: 9782841672998

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On the other hand, definer-rights procedures are bound to the schema in which they reside. They execute with the privileges of their definer, and their unqualified references to schema objects are resolved in the schema of the definer. 2-20 Java Stored Procedures Developer’s Guide Controlling the Current User Invoker-rights procedures let you reuse code and centralize application logic. They are especially useful in applications that store data in different schemas. In such cases, multiple users can manage their own data using a single code base.

For example, in SQL*Plus, you can use the CREATE JAVA CLASS statement to load Java class files from local BFILEs and LOB columns into the Oracle database. For more information, see the Oracle9i SQL Reference. ■ Java in the Database ■ Java Code, Binaries, and Resources Storage ■ Preparing Java Class Methods for Execution ■ User Interfaces on the Server ■ Shortened Class Names ■ Controlling the Current User Loading Java Classes 2-1 Java in the Database Java in the Database To make Java files available to the Oracle JVM, you must load them into the Oracle database as schema objects.

The Oracle JVM and Its Components Server-Side JDBC Internal Driver JDBC is a standard set of Java classes providing vendor-independent access to relational data. Specified by Sun Microsystems and modeled after ODBC (Open Database Connectivity) and the X/Open SQL CLI (Call Level Interface), the JDBC classes supply standard features such as simultaneous connections to several databases, transaction management, simple queries, calls to stored procedures, and streaming access to LONG column data. Using low-level entry points, a specially tuned JDBC driver runs directly inside the RDBMS, thereby providing the fastest access to Oracle data from Java stored procedures.

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Boucles d'oreilles: Perles de cristal et fantaisie by Ines Valentin

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