Schema Linking
The process of aligning natural language queries directly to the specific tables, columns, and relationships in a structured database.
Think of It Like This
Like a translator converting a tourist's vague request for 'good food' into a specific address for the best local restaurant.
This is a critical preprocessing step for Text-to-SQL systems. By pre-identifying which database columns map to the nouns in a user's prompt, the LLM is heavily grounded and much less likely to hallucinate non-existent tables. It drastically improves the accuracy of natural language interfaces for enterprise databases.