The invention discloses a Text2
SQL (Structured
Query Language) implementation method and
system, and relates to the field of
data processing, and the method comprises the following steps: firstly, receiving a
natural language query, and analyzing a query intention, field classification and a key entity through a planner; the searcher obtains
domain knowledge, entity information, a
database table structure and a historical query mode in a multi-path parallel mode based on the planning result; the generator constructs an
SQL framework according to the
retrieval result and generates an initial statement; the verifier carries out grammar, table field, authority and logic multi-dimensional
verification on the
SQL, and if the
verification fails, iteration adjustment is carried out to generate logic; when the SQL is executed, the result is formatted and a
natural language explanation containing query logic, a
data source and a calculation method is generated if the SQL is executed successfully, and a diagnosis and error correction mechanism is started for correction and then rechecking is performed if the SQL is executed unsuccessfully. According to the method, through deep fusion of
domain knowledge, whole-
process verification error correction and
interpretability enhancement, the accuracy, robustness and user interaction experience of SQL conversion in a professional scene are improved.