Oracle Maestro is the premier Windows GUI admin tool for Oracle database server management, control and development.

Oracle Maestro provides you  with a number of tools allowing to perform all the necessary database operations such as creating, editing, and duplicating database objects; moreover, you can design your database as ER diagram, debug your PL/SQL code, build queries visually, execute and optimize SQL queries and SQL scripts, view and edit data including BLOBs, represent data as diagrams, export and import data to/from most popular file formats, analyze your data summarized into multidimensional views and hierarchies (OLAP cubes), and use a lot of other tools implemented to make your work with Oracle server comfortable and efficient.

We are proud of the GUI that unites the heavy-duty Oracle server scalability,  associated with  time-intensive tasks of Oracle database design and availability, in excellent performances of easy-to-use wizards and editors. 

Oracle Database 10g provides robust and complete solutions to address all your information integration requirements. They integrate information across a distributed environment, whether within a grid or across multiple stand-alone systems. Oracle Streams is an integration feature of the database that provides a single unified environment for data sharing, including message queueing and replication.

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Oracle Database 10g is latest release of the Oracle Database Server. It is the first database that has been designed for grid computing. This latest version is aimed at reducing IT costs by simplifying and automating many of the management features of Oracle. Access latest information about Oracle 10g.The Oracle 10g certification has been streamlined and has been re-designed to certify Oracle professionals in less time than previous versions of the certification program. The Oracle Database 10g curriculum has been recently made available and requires an individual to complete just 2 exams for the certification at an Oracle Certified Professional (OCP) level. Under the Oracle 10g certification program, a individual can pursue three certification levels namely,

The performance characteristics of SQL MODEL queries can be quite different from the non-MODEL queries many developers are accustomed to. In some cases MODEL query performance can even be so poor that it renders the query unusable. The key to writing efficient MODEL queries seems to revolve around how much session memory they use. The topics in this section will therefore focus on session memory usage and ways to keep it to a minimum.

Unfortunately, the inner workings of MODEL queries are not documented. We can, however, gain some practical insight into the process by testing various query configurations and then examining the memory usage of each test. Memory usage will be determined by examining the "session pga memory max" and "session uga memory max" performance statistics from the data dictionary's V$MYSTAT view.

Configure the unix kernel interprocess communication parameters to accommodate the SGA structure of Oracle8. The database will not start up if the system does not have adequate shared memory.
Use the ipcs command to get a list of the system's current shared memory and semaphore segments.
1. Edit the /etc/system file to verify that the system has been configured with enough shared memory.