NTCA (National Tax and Customs Administration) Data Warehouse Exadata X7 Introduction and Integration

Client Description

The National Tax and Customs Administration (NAV) is a governmental organization in Hungary responsible for the collection of taxes and customs duties, as well as enforcing tax-related regulations. Its duties include tax audits, providing guidance to taxpayers, overseeing customs procedures, and detecting financial fraud. The organization aims to improve the efficiency of the tax system and ensure fair contribution to public finances.

Project General Description

The NAV undertook a major technological upgrade of its data warehouse infrastructure with the implementation of the Exadata X7 platform. This large-scale project aimed to enhance data management capacity, optimize performance, and ensure regulatory compliance. The introduction of Exadata X7 has enabled NAV to manage petabytes of data more efficiently, significantly reduce service response times, and consolidate its data warehouse solutions, which previously operated on separate infrastructures.

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Government Sectors
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Data Warehouse

Challenge

The Oracle Exadata X7 is a high-end, integrated hardware and software platform specifically designed for high-performance database operations. NAV chose this system because it can efficiently handle over 4-5 petabytes of data, while delivering exceptional performance for complex queries and data analysis.

The migration of the NAV data warehouse to the Exadata X7 platform was a complex, multi-stage process. The project involved transferring more than 20 different databases while ensuring continuous operation and data integrity.

During the migration, special attention had to be paid to aligning Oracle versions to ensure that all databases were compatible with the new Exadata environment.

Network segmentation was a crucial element in the security strategy. Separate network segments were created for development, testing, and production environments, ensuring no unintended data flow between them. In addition, strict access control policies were implemented to safeguard the system.

How we helped?

  • Handling Large Data Volumes
  • One of the main reasons for implementing the Exadata X7 system was to efficiently process the vast amount of data managed by NAV, amounting to 4-5 petabytes. The Exadata X7 provides the specialized infrastructure required for this task.
  • Analysis of Data Structures
  • The project involved analyzing data structures, designing the optimal data model, and fine-tuning system performance.
  • Performance Improvement
  • The new system significantly improves the speed and efficiency of data processing, which is essential for NAV's operations, as the fast processing of tax returns and financial transactions is crucial.
  • Reduction of Service Times
  • With the introduction of the Exadata X7, service times have been drastically reduced, improving customer experience and increasing NAV’s operational efficiency in daily tasks.
  • Consolidation of Unique Infrastructures
  • The Exadata X7 enabled the unification of previously separate data warehouse solutions, improving data consistency and reducing redundancy across systems.
  • Synchronization of Oracle Versions
  • As part of the project, the harmonization of Oracle database versions was carried out. This ensures system compatibility and facilitates future updates. The process included potential version upgrades and the installation of necessary patches.
  • Backup Configuration
  • A complex backup strategy was developed on the Exadata X7 system, including regular full and incremental backups. These processes are automated and scheduled, minimizing the need for manual intervention.
  • Oracle Database
  • Oracle Exadata