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From SQL Server to Lakehouse, Without the Rewrite

How MigratioLM, AOT’s AI-driven migration accelerator, helps enterprises modernize legacy data warehouses into Databricks and Microsoft Fabric, while preserving years of business logic.


Many enterprises continue to depend on legacy data warehouse platforms, self-managed and on-premises, that are tightly coupled, expensive to scale, and difficult to extend for modern analytics, AI, and real-time processing. Large SQL Server estates often contain thousands of tables, views, stored procedures, and ETL pipelines that encode years of critical business logic.

Migrating that environment to a modern Lakehouse is rarely about the platform itself. The hard part is the body of work locked inside it: the procedural SQL, the dependencies, and the institutional knowledge that downstream reporting and analytics quietly depend on.

MigratioLM is AOT Technologies’ AI-driven Data pipeline Migration Accelerator for modernizing legacy data warehouse environments, based on SQL Server or PostgreSQL, into scalable Lakehouse platforms such as Databricks and Microsoft Fabric. By automating discovery, dependency analysis, business logic conversion, and migration tracking, MigratioLM helps organizations transform T-SQL or P-SQL-based SQL queries, stored procedures, views, tables, and pipelines into Python Spark-based Lakehouse implementations with reduced manual effort and lower migration risk.

What MigratioLM Does?

MigratioLM provides an end-to-end migration workbench for assessing, converting, validating, and operationalizing legacy data platforms into modern Lakehouse architectures.

At its core, MigratioLM uses AI-driven business logic migration to analyze SQL Server database objects written in T-SQL and transform them into Spark-based Python notebooks, Spark SQL, or equivalent Lakehouse-native implementations.

Figure 1. The Migration Projects workspace, project cards by status, with supported source platforms below.

The platform supports migration activities across four areas:

Database Objects

Tables, views, stored procedures, functions, and schemas are discovered, catalogued, assessed, and prioritized for migration.
Business Logic Conversion

Complex T-SQL logic embedded in stored procedures and views is analyzed and converted into Spark-based implementations suitable for Databricks notebooks or Fabric-oriented Lakehouse workloads.
Pipeline Modernization

Legacy data movement and transformation pipelines can be mapped to modern orchestration patterns using Databricks workflows, Delta Lake, medallion architecture, and scalable cloud storage.
Data Lakehouse Enablement

MigratioLM supports migration to modern Lakehouse platforms that separate compute and storage, enable Delta- based data management, support structured and semi-structured data, and prepare the enterprise for advanced analytics and AI.

Key Capabilities

Six capabilities together turn a migration from a one-off project into a repeatable program:

1. Reduced Manual Effort and Faster Delivery. Databricks migration programs frequently require automation for data migration, stored procedure conversion, and quality assurance to reduce manual work, improve consistency, and shorten delivery timelines. MigratioLM addresses this by combining migration automation with AI-assisted code transformation.

2. Automated Discovery and Inventory. MigratioLM scans legacy SQL Server or PostgreSQL environments and builds a structured inventory of migration assets, databases, tables, views, stored procedures, functions, and ETL-related objects. Teams understand migration scope, complexity, dependencies, and readiness before implementation begins.

3. AI-Driven Business Logic Migration. MigratioLM core differentiator. It interprets T-SQL business rules, transformations, joins, aggregations, control flow, and procedural constructs, then generates Spark-based Python notebook implementations for Databricks. This reduces manual rewrite effort while improving consistency, traceability, and migration velocity.

4. Target Platform Flexibility. MigratioLM is designed for modernization into platforms such as Databricks Delta Lake, Azure Databricks, Microsoft Fabric Lakehouse, and Spark-based cloud data platforms. This makes it suitable for organizations standardizing on open Lakehouse patterns while maintaining flexibility across cloud ecosystems.

5. Migration Workflow Management. A project-based migration experience where teams select source systems, configure target destinations, browse SQL Server objects, track status, and manage migration execution, supported by project cards, source/target configuration, object exploration, status tracking, and Databricks connection validation.

6. Validation and Quality Assurance. MigratioLM supports validation-oriented migration by helping teams compare source and target logic, track converted objects, and monitor migration progress. This is especially important when modernizing stored procedures and business-critical transformations that support reporting, analytics, and downstream applications.

Figure 2. The SQL Server Objects browser: tables, views, stored procedures, functions, and SSIS packages cataloged with per-object migration status.

Object-level tracking is what makes the workflow repeatable. Each artifact in the source environment is discoverable, selectable, and trackable throughout the migration lifecycle, from pending to migrated to validated.

Figure 3. Configuring source and target inside a single migration project, SQL Server connection on the left, Databricks workspace on the right, with connection and access validation built in.

Target Platforms

MigratioLM is designed for modernization into platforms such as:

  • Databricks Delta Lake
  • Azure Databricks
  • Microsoft Fabric Lakehouse
  • Spark-based cloud data platforms

This makes MigratioLM suitable for organizations standardizing on open Lakehouse patterns while maintaining flexibility across cloud ecosystems.

Why this matters for the business.

Migration programs are expensive precisely because the conversion work in the middle, translating business logic from one dialect to another, is hand-crafted, slow, and hard to validate. Compressing that step changes the economics of the whole program.

Accelerated Lakehouse Adoption

MigratioLM helps organizations move from legacy data warehouse platforms to modern Lakehouse architectures faster, enabling scalable analytics, real-time data processing, and AI-ready data foundations.

Lower Migration Risk

By providing discovery, object-level tracking, AI-assisted conversion, and validation workflows, MigratioLM brings structure and repeatability to large-scale migration programs.

Preservation of Business Logic

Enterprises often have years of institutional knowledge embedded in SQL stored procedures and views. MigratioLM helps preserve and translate this logic into modern Spark-based patterns rather than requiring a full manual rewrite.

Improved Scalability and Performance

Modern Lakehouse platforms, such as Databricks, allow independent scaling of compute and storage, support Delta Lake storage patterns, and enable workloads that are difficult to support efficiently on traditional SQL-based platforms.

AI and Analytics Readiness

MigratioLM helps organizations prepare their data estate for advanced analytics, machine learning, generative AI, and agentic AI use cases by moving data and logic into modern, cloud-native architectures.

Planning a Lakehouse migration?

If your organization is scoping a move from SQL Server or PostgreSQL to Databricks or Microsoft Fabric, or is already in a migration program and feeling the conversion bottleneck, we’d be glad to show you MigratioLM in action. Get in touch with our team.

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