Data Migration
ASAP provides a comprehensive data migration service – from initial analysis and planning to secure data transfer and validation. We handle migrations within the same database engine as well as cross-platform transitions, including specialized Informix to PostgreSQL migrations. The process is executed without downtime and without data loss.
Data Migration: a secure transition to a more efficient infrastructure
Data is a strategic asset, and accurate migration is essential for the growth and continuity of any organization. Whether migrating to the cloud, moving to a new database version, transitioning to a different DBMS, or modernizing via PostgreSQL, the process must be risk-free and professionally managed.
ASAP provides end-to-end data migration services – from analysis and architecture design to transfer, validation, and post-migration support. Our experience covers modern platforms such as PostgreSQL, Oracle, and MySQL, as well as legacy systems like Informix, for which we deliver fully specialized Informix → PostgreSQL migration services – a scalable, reliable, and cost-efficient upgrade preferred by many organizations.
What data migration involves
Data migration includes transferring structures, objects, and information between systems, platforms, or versions. This may involve migrations within the same engine (e.g. SQL Server → SQL Server), cross-database migrations (Informix → PostgreSQL), or transitions to cloud-based environments.
A well-executed migration is not only a technology replacement but also an opportunity to improve data quality, system performance, and organizational processes.
When data migration is needed
Data migration is required when an organization adopts new business systems, replaces outdated platforms such as Informix, moves to PostgreSQL for better scalability and performance, upgrades hardware, or transitions towards cloud infrastructure. It is also essential when consolidating multiple databases into a unified environment, modernizing legacy systems, switching to modern DBMS technologies, or integrating with new applications.
Migration is often mandatory to meet regulatory requirements such as GDPR and ISO standards, and to improve security, reliability, and operational control. Properly planned and professionally executed migration ensures system continuity, higher performance, and long-term readiness of the infrastructure.
Types of migrations we perform
ASAP offers a full range of migration services, tailored to the needs of each organization:
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Database migration
Technologically precise transfer of schemas, data, functions, procedures, and indexes across versions and platforms. We deliver projects such as Informix → PostgreSQL, Oracle → PostgreSQL, and other enterprise-grade combinations.
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Cross-DBMS migration
Migration of structures and data between Informix, PostgreSQL, Oracle, MySQL, MariaDB, and other relational systems, with precise datatype mapping and adaptation of system-specific functions.
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Application migration
Adapting dependent systems, applications, and API integrations when changing the primary database engine, including business logic transformation, stored procedures, and query optimization.
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Storage and server migration
Transition to faster, scalable, and resilient infrastructures designed for high-performance workloads.
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Data center migration
Transferring systems across on-premises, hybrid, or new physical environments, ensuring continuity and controlled risk.
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Cloud migration
Migration to major cloud platforms including Azure, AWS, Google Cloud, and Kubernetes-based architectures, optimized for security, manageability, and scalability.
Expertise in Informix to PostgreSQL Migration
Analysis and Structural Preparation
ASAP has extensive practical experience in migrating from Informix to PostgreSQL. The process begins with detailed mapping of structures and identifying business logic and dependencies. A migration plan is then prepared to minimize risks and ensure a smooth transition.
Transformation and Guaranteed Compatibility
The process includes precise data type transformation and conversion of SPL procedures and triggers to PL/pgSQL, with all business rules adapted without loss of functionality. Additionally, queries are optimized and improvements implemented to ensure maximum performance.
Optimization and Final Verification
After a successful transformation, queries are optimized and the PostgreSQL environment is tuned for maximum efficiency. Extensive functionality and performance testing is included to ensure reliability and stability. All processes are documented and adapted according to the specific business requirements.
Key migration challenges and our approach
Cross-platform migrations – especially Informix to PostgreSQL – often involve differences in datatypes, SQL syntax, trigger and procedure behavior, system functions, indexing strategies, time/date formats, and application logic dependencies. These differences can lead to incompatibilities, functional gaps, or performance degradation if not addressed correctly.
ASAP overcomes these challenges through a structured and proven methodology: in-depth analysis of the current environment, precise transformation of schemas and logic, test migrations, parallel execution, and continuous monitoring. For Informix → PostgreSQL we use specialized tools and automated methods to ensure accurate mapping of objects, correct procedure behavior, and optimized performance in the target PostgreSQL environment.
How the migration process works
ASAP applies a consistent and proven methodology:
1. Assessment and planning
Analysis of Informix or other DBMS, data volumes, dependencies.
2. Audit and cleansing
Structural adjustments, data quality optimization.
3. Detailed mapping
Schema transformation and conversion of key Informix functions to PostgreSQL.
4. Backup
Full data protection prior to execution.
5. Target environment preparation
Configuration of PostgreSQL and supporting infrastructure.
6. Test migration
Compatibility and performance validation.
7. Execution
Phased or full migration.
8. Validation and normalization
Data integrity checks, performance tuning.
9. Support
Final adjustments, monitoring, user training if needed.
Technologies we support
ASAP supports a wide range of databases: Informix, PostgreSQL, Oracle, SQL Server, MySQL/MariaDB, MongoDB, as well as cloud options such as Azure SQL and AWS RDS.
Benefits of professional migration with ASAP
For Informix → PostgreSQL projects, organizations gain a modern, stable, and high-performance system prepared for long-term workloads. Migrations carried out using ASAP’s methodology ensure a reliable and predictable process with:
Complete data accuracy and protection.
Optimized performance in the new environment.
Reduced maintenance and licensing costs.
Increased security and future-readiness.
Seamless application integration.
Do you want to learn more? You can reach us at sales@asap.bg or phone: +359 2 903 21 20.