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MigryX Blog

Practical, example-driven guides to moving legacy code and data platforms to Databricks and Snowflake, and the details that decide whether the numbers still match.

Databricks

Mainframe → Databricks

Mainframe to Databricks: Moving COBOL, JCL and Copybook Batch to PySpark and Lakeflow Jobs

Mainframe batch is rarely hard because of COBOL syntax. It is hard because of bytes, arithmetic and condition codes. Here is how each one lands on Databricks.

September 29, 2026 · 13 min read
SAS → Databricks

SAS to Databricks: 7 SAS Behaviors That Quietly Change Your Numbers in PySpark

Converted SAS code that runs is easy. Converted code that produces the same numbers is the whole job. These are the behaviors that break parity, and the fixes.

September 29, 2026 · 12 min read

Snowflake

Legacy ETL → dbt on Snowflake

From Qlik, Informatica and DataStage to dbt Projects on Snowflake: A Source-by-Source Guide

Snowflake now runs dbt inside your account. Most enterprise transformation logic was never written in SQL. Here is what each legacy tool's logic becomes in dbt.

September 29, 2026 · 14 min read

See your own code converted

Bring a representative job or program. We will walk through what it becomes on Databricks or Snowflake, and how parity is proven.

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