Case Study: Oracle to Big Query Migration for a Leading Tech Firm

VerticalServe Blogs
3 min readApr 25, 2023

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Client: Leading Tech Firm (LTF) Consulting Company: VerticalServe

Executive Summary: The Leading Tech Firm (LTF) partnered with VerticalServe to migrate their data from Oracle to BigQuery, aiming to improve performance, scalability, and cost-effectiveness. The project involved catalog creation, data analysis, conversion rules management, data validation, data type optimization, application migration, data governance, data lifecycle management, and decommissioning. VerticalServe successfully executed the migration, delivering increased efficiency and cost savings for LTF.

Challenge: LTF faced several challenges in managing and scaling their Oracle database environment, including high costs, complex data management, and performance limitations. To address these issues, LTF decided to migrate their Oracle databases to Google Cloud Platform (GCP) BigQuery. The migration needed to be seamless, ensuring data consistency, minimal downtime, and limited impact on ongoing business operations.

Solution: VerticalServe developed a comprehensive migration strategy for LTF, which involved the following steps:

  1. Catalog Creation: VerticalServe created a detailed catalog of LTF’s data sets and applications, identifying dependencies and potential roadblocks during the migration.
  2. Analysis and Mapping: VerticalServe analyzed and mapped the Oracle tables to BigQuery, identifying potential data conversion and optimization opportunities.
  3. Conversion Rules Management: VerticalServe defined a set of rules for data conversion, ensuring consistency between the Oracle and BigQuery environments.
  4. Automation of Conversion: VerticalServe automated the data conversion process, minimizing manual intervention and reducing the risk of human error.
  5. Data Validation on BigQuery: VerticalServe performed thorough data validation on the migrated data in BigQuery, ensuring data consistency and integrity.
  6. Data Type Optimization: VerticalServe optimized data types in BigQuery, resulting in improved query performance and reduced storage costs.
  7. Application Migration and Validation: VerticalServe migrated LTF’s applications to the GCP environment and validated their functionality, ensuring seamless integration with the migrated data.
  8. Data Governance and Security Implementation: VerticalServe implemented data governance and security measures, such as encryption and access controls, ensuring LTF’s data remained secure in the GCP environment.
  9. Data Lifecycle Management on GCP: VerticalServe established a data lifecycle management process, optimizing LTF’s data storage and archiving on the GCP platform.
  10. Slots and Quota Design: VerticalServe designed and allocated BigQuery slots and quotas, ensuring optimal performance and cost management for LTF’s data workloads.
  11. Incremental Migration: VerticalServe performed incremental migration of data, reducing downtime and impact on LTF’s business operations.
  12. Decommissioning: VerticalServe decommissioned the Oracle environment, ensuring a smooth transition to the GCP BigQuery platform.

Results: The migration to BigQuery resulted in significant improvements for LTF, including:

  • A 30% reduction in data storage costs
  • A 40% improvement in query performance
  • Enhanced scalability and flexibility to handle growing data workloads
  • Simplified data governance and lifecycle management

With VerticalServe’s expertise and tailored migration strategy, LTF successfully migrated their Oracle environment to BigQuery, achieving increased efficiency and cost savings.

About:

VerticalServe Inc — Niche Cloud, Data & AI/ML Premier Consulting Company, Partnered with Google Cloud, Confluent, AWS, Azure…50+ Customers and many success stories..

Website: http://www.VerticalServe.com

Contact: contact@verticalserve.com

Successful Case Studies: http://verticalserve.com/success-stories.html

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