Company Confidential 1 © 2005 Nokia DBUpgradeTool_ ppt / / JMa A Database Upgrade Tool Nokia Networks Jukka Maaranen

Company Confidential 2 © 2005 Nokia DBUpgradeTool_ ppt / / JMa The Optimizer Product A mobile network optimising product as a part of a larger network management software suite. Uses actual measured information about the network to optimise its configuration and performance. The measurements are done by individual mobile phones and collected by the network. Optimizer gets the network data from the NW management software platform and makes an optimised NW configuration plan based on the data. The optimised plan is then made available to other NW management software to make actual changes to the network.

Company Confidential 3 © 2005 Nokia DBUpgradeTool_ ppt / / JMa The Challenging Upgrade The Optimizer is a part of a larger product portfolio and has connections to external databases. The Optimizer’s database upgrade is performed along with wider platform upgrade where individual product upgrades are controlled by automated scripts. The Optimizer itself has many optional modules. Several versions of the Optimizer and its database schema exists at some locations has not been installed at all has been partly installed maintenance updates The upgrade has become increasingly complex and requires manual checks and operations.

Company Confidential 4 © 2005 Nokia DBUpgradeTool_ ppt / / JMa The DB Upgrade Tool A Java application for database upgrade has also its own UI, but is meant to be used automatically from other applications resolves automatically required changes to current DB schema The upgrade target DB schema is given with an XML file. SQL Target DB as XML DB Upgrade Tool Source DB Target DB

Company Confidential 5 © 2005 Nokia DBUpgradeTool_ ppt / / JMa The DB Upgrade Tool Resolves the current DB schema from a DB connection and creates required SQL scripts. Uses the database metadata to query e.g. table structures, constraints, indexes, sequences, users and privileges,... SQL Target DB as XML DB Upgrade Tool Source DB Target DB

Company Confidential 6 © 2005 Nokia DBUpgradeTool_ ppt / / JMa The DB Upgrade Tool The SQL scripts can then be run with the tool to perform the actual upgrade or the scripts can just be saved. Human readable logs about the changes and possible problems SQL Target DB as XML DB Upgrade Tool Source DB Target DB

Company Confidential 7 © 2005 Nokia DBUpgradeTool_ ppt / / JMa The DB Upgrade Tool The tool can also be used to just create an XML file from an existing DB schema. Supports both Oracle and MySQL databases. High requirements for error handling and logging robust, reliable and configurable Some requirements for the development Used technologies: Java, XML, PL/SQL, Oracle, MySQL Knowledge on how to extract needed DB data from Oracle and MySQL Good quality and reliable functioning of the tool Good quality expected also for the source code and specifications

Company Confidential 8 © 2005 Nokia DBUpgradeTool_ ppt / / JMa Thank You! Contact person: Nokia Networks Jukka Maaranen GSM