The present invention discloses a Text2
SQL implementation method and
system, which relates to the field of
data processing, including: first receiving a
natural language query, analyzing the query intent, domain classification, and key entities through a planner; a retriever acquiring
domain knowledge, entity information,
database table structure, and historical query patterns in parallel based on the planning results; a generator constructing an
SQL framework and generating an initial statement based on the retrieval results; a
validator performing multi-dimensional
verification of the
SQL in terms of
syntax, table fields, permissions, and logic, and iteratively adjusting the generation logic if failure occurs; when executing the SQL, if success occurs, formatting the result and generating a
natural language explanation containing the query logic,
data source, and calculation method; if failure occurs, activating a diagnosis and error correction mechanism and correcting it before re-
verification. This method improves the accuracy, robustness, and user interaction experience of SQL conversion in professional scenarios through
deep integration of
domain knowledge, full-
process verification and error correction, and enhanced
interpretability.