SQL to HQL Converter

About This Tool

The tool analyzes a SQL statement and outputs an equivalent HQL string, focusing on Hibernate-compatible syntax and entity mapping assumptions. It supports basic SELECTs, joins, WHERE clauses, GROUP BY, ORDER BY, and simple aggregates. It flags dialect-specific features and suggests Hibernate-friendly alternatives.
Core translation logic tokenizes SQL, maps table names to entities via naming conventions or provided mappings, converts SELECT and FROM clauses to HQL FROM, and preserves aliases while replacing table names with entity names. It handles common functions and literals, and raises warnings when constructs cannot be translated directly or require manual refinement.
Audience and value: Java developers migrating legacy SQL to Hibernate, DBAs validating ORM queries, and teams standardizing data access through Hibernate. Unique differentiators include entity-aware translation, automatic alias preservation, and dialect-tuning guidance to reduce manual rewrite effort.
Limitations: Complex nested subqueries, vendor-specific features, and certain analytics functions may not translate automatically; manual review is recommended.

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