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Large enterprise databases can be complex and messy, obscuring the data semantics needed for analytical tasks. We propose a semantic layer in-between the database and the user as a set of small and easy-to-interpret database views,…

Databases · Computer Science 2024-12-12 Agapi Rissaki , Ilias Fountalis , Nikolaos Vasiloglou , Wolfgang Gatterbauer

Large Language Models (LLMs) have made significant progress in assisting users to query databases in natural language. While LLM-based techniques provide state-of-the-art results on many standard benchmarks, their performance significantly…

Artificial Intelligence · Computer Science 2024-07-09 Nina Narodytska , Shay Vargaftik

Schema matching is a foundational task in enterprise data integration, aiming to align disparate data sources. While traditional methods handle simple one-to-one table mappings, they often struggle with complex multi-table schema matching…

Databases · Computer Science 2025-07-16 Sha Wang , Yuchen Li , Hanhua Xiao , Bing Tian Dai , Roy Ka-Wei Lee , Yanfei Dong , Lambert Deng

The advancements of Large language models (LLMs) have provided great opportunities to text-to-SQL tasks to overcome the main challenges to understand complex domain information and complex database structures in business applications. In…

Artificial Intelligence · Computer Science 2025-05-27 Wenda Zhang

It is challenging to convert natural language (NL) questions into executable structured query language (SQL) queries for text-to-SQL tasks due to the vast number of database schemas with redundancy, which interferes with semantic learning,…

Databases · Computer Science 2025-02-11 Zhuopan Yang , Yuanzhen Xie , Ruichao Zhong , Yunzhi Tan , Enjie Liu , Zhenguo Yang , Mochi Gao , Bo Hu , Zang Li

Answering natural language queries over relational data often requires retrieving and reasoning over multiple tables, yet most retrievers optimize only for query-table relevance and ignore table table compatibility. We introduce REAR…

Information Retrieval · Computer Science 2025-11-04 Rishita Agarwal , Himanshu Singhal , Peter Baile Chen , Manan Roy Choudhury , Dan Roth , Vivek Gupta

The task of joining two tables is fundamental for querying databases. In this paper, we focus on the equi-join problem, where a pair of records from the two joined tables are part of the join results if equality holds between their values…

Databases · Computer Science 2025-03-14 Ahmed Metwally

The increasing volume of academic literature makes it essential for researchers to organize, compare, and contrast collections of documents. Large language models (LLMs) can support this process by generating schemas defining shared aspects…

Computation and Language · Computer Science 2025-10-08 Vishakh Padmakumar , Joseph Chee Chang , Kyle Lo , Doug Downey , Aakanksha Naik

Text-to-SQL enables users to interact with databases through natural language, simplifying access to structured data. Although highly capable large language models (LLMs) achieve strong accuracy for complex queries, they incur unnecessary…

Databases · Computer Science 2024-11-08 Mohammadhossein Malekpour , Nour Shaheen , Foutse Khomh , Amine Mhedhbi

The task of converting natural language queries into SQL queries is intricate, necessitating a blend of precise techniques for an accurate translation. The DIN-SQL (Decomposed-In-Context SQL) methodology represents a significant development…

Databases · Computer Science 2024-03-05 Shai Volvovsky , Marco Marcassa , Mustafa Panbiharwala

Despite advances in large language model (LLM)-based natural language interfaces for databases, scaling to enterprise-level data catalogs remains an under-explored challenge. Prior works addressing this challenge rely on domain-specific…

Computation and Language · Computer Science 2025-08-01 Jeffrey Eben , Aitzaz Ahmad , Stephen Lau

One of the major challenges in enterprise data analysis is the task of finding joinable tables that are conceptually related and provide meaningful insights. Traditionally, joinable tables have been discovered through a search for similar…

Large Language Models have recently shown impressive capabilities in reasoning and code generation, making them promising tools for natural language interfaces to relational databases. However, existing approaches often fail to generalize…

Databases · Computer Science 2026-02-03 Wenjia Jiang , Yiwei Wang , Boyan Han , Joey Tianyi Zhou , Chi Zhang

Text-to-SQL task aims to automatically yield SQL queries according to user text questions. To address this problem, we propose a Cooperative SQL Generation framework based on Multi-functional Agents (CSMA) through information interaction…

Computation and Language · Computer Science 2024-12-10 Zhiguang Wu , Fengbin Zhu , Xuequn Shang , Yupei Zhang , Pan Zhou

Recent advancements in large language models (LLMs) have shown promise in bridging the gap between natural language queries and database management systems, enabling users to interact with databases without the background of SQL. However,…

Databases · Computer Science 2025-07-11 Qinggang Zhang , Hao Chen , Junnan Dong , Shengyuan Chen , Feiran Huang , Xiao Huang

NL2SQL (natural language to SQL) systems translate natural language into SQL queries, allowing users with no technical background to interact with databases and create tools like reports or visualizations. While recent advancements in large…

Schema discovery is an important aspect to working with data in formats such as JSON. Unlike relational databases, JSON data sets often do not have associated structural information. Consumers of such datasets are often left to browse…

Databases · Computer Science 2023-07-07 Michael J. Mior

To leverage the advantages of LLM in addressing challenges in the Text-to-SQL task, we present XiYan-SQL, an innovative framework effectively generating and utilizing multiple SQL candidates. It consists of three components: 1) a Schema…

Computation and Language · Computer Science 2026-04-07 Yifu Liu , Yin Zhu , Yingqi Gao , Zhiling Luo , Xiaoxia Li , Xiaorong Shi , Yuntao Hong , Jinyang Gao , Yu Li , Bolin Ding , Jingren Zhou

The Database field is undergoing significant changes. Although relational systems are still predominant, the interest in NoSQL systems is continuously increasing. In this scenario, polyglot persistence is envisioned as the database…

Databases · Computer Science 2025-10-24 Carlos J. Fernández Candel , Diego Sevilla Ruiz , Jesús J. García-Molina

Text-to-SQL generation bridges the gap between natural language and databases, enabling users to query data without requiring SQL expertise. While large language models (LLMs) have significantly advanced the field, challenges remain in…

Machine Learning · Computer Science 2025-12-18 Ganesh Parab , Zishan Ahmad , Dagnachew Birru