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Generating step-by-step "chain-of-thought" rationales has proven effective for improving the performance of large language models on complex reasoning tasks. However, applying such techniques to structured tasks, such as text-to-SQL,…

Computation and Language · Computer Science 2025-02-20 Mingqian He , Yongliang Shen , Wenqi Zhang , Qiuying Peng , Jun Wang , Weiming Lu

Recent advances in large language models (LLMs) have propelled research in natural language interfaces to databases. However, most state-of-the-art text-to-SQL systems still depend on complex, multi-stage pipelines. This work proposes a…

Artificial Intelligence · Computer Science 2025-06-03 Fernando Granado , Roberto Lotufo , Jayr Pereira

Text-to-SQL, which translates a natural language question into an SQL query, has advanced with in-context learning of Large Language Models (LLMs). However, existing methods show little improvement in performance compared to randomly chosen…

Artificial Intelligence · Computer Science 2025-07-23 Jihyung Lee , Jin-Seop Lee , Jaehoon Lee , YunSeok Choi , Jee-Hyong Lee

Text-to-SQL aims to translate natural language queries into SQL statements, which is practical as it enables anyone to easily retrieve the desired information from databases. Recently, many existing approaches tackle this problem with Large…

Despite strong performance on Text-to-SQL benchmarks, it remains unclear whether LLM-generated SQL programs are structurally reliable. In this work, we investigate the structural behavior of LLM-generated SQL queries and introduce…

Computation and Language · Computer Science 2026-04-09 Yixi Zhou , Fan Zhang , Zhiqiao Guo , Yu Chen , Haipeng Zhang , Preslav Nakov , Zhuohan Xie

The conversion of natural language queries into SQL queries, known as Text-to-SQL, is a critical yet challenging task. This paper introduces EPI-SQL, a novel methodological framework leveraging Large Language Models (LLMs) to enhance the…

Computation and Language · Computer Science 2024-04-24 Xiping Liu , Zhao Tan

Querying tables with unstructured data is challenging due to the presence of text (or image), either embedded in the table or in external paragraphs, which traditional SQL struggles to process, especially for tasks requiring semantic…

Artificial Intelligence · Computer Science 2025-09-25 Rohit Khoja , Devanshu Gupta , Yanjie Fu , Dan Roth , Vivek Gupta

Text-to-SQL transforms the user queries from natural language to executable SQL programs, enabling non-experts to interact with complex databases. Existing prompt-based methods craft meticulous text guidelines and examples to facilitate SQL…

Computation and Language · Computer Science 2025-06-04 Yongdong chi , Hanqing Wang , Zonghan Yang , Jian Yang , Xiao Yan , Yun Chen , Guanhua Chen

Text-to-SQL aims to translate natural language queries into SQL statements. Existing methods typically follow a pipeline of pre-processing, schema linking, candidate SQL generation, SQL alignment, and target SQL selection. However, these…

Databases · Computer Science 2026-03-17 Qin Wang , Youhuan Li , Suixi Lin , Zhuo Tang , Kenli Li , Peng Peng , Quanqing Xu , Chuanhui Yang

The conversion of natural language into SQL language for querying databases (Text-to-SQL) has broad application prospects and has attracted widespread attention. At present, the mainstream Text-to-SQL methods are mainly divided into…

Computation and Language · Computer Science 2025-02-18 Lei Sheng , Shuai-Shuai Xu , Wei Xie

Translating natural language questions into SQL queries, known as text-to-SQL, is a long-standing research problem. Effective text-to-SQL synthesis can become very challenging due to (i) the extensive size of database catalogs (descriptions…

Machine Learning · Computer Science 2024-11-27 Shayan Talaei , Mohammadreza Pourreza , Yu-Chen Chang , Azalia Mirhoseini , Amin Saberi

The Natural Language to SQL (NL2SQL) technique is used to convert natural language queries into executable SQL statements. Typically, slot-filling is employed as a classification method for multi-task cases to achieve this goal. However,…

Computation and Language · Computer Science 2023-09-19 Chenduo Hao , Xu Zhang

Large language models revolutionize Text2SQL through supervised fine-tuning, yet a crucial limitation is overlooked: the complexity of databases leads to an increased context length, consequently resulting in higher GPU memory demands for…

Databases · Computer Science 2024-10-16 Wen Wuzhenghong , Zhang Yongpan , Pan Su , Sun Yuwei , Lu Pengwei , Ding Cheng

Recent In-Context Learning based methods have achieved remarkable success in Text-to-SQL task. However, there is still a large gap between the performance of these models and human performance on datasets with complex database schema and…

Computation and Language · Computer Science 2024-11-08 Wenxuan Xie , Gaochen Wu , Bowen Zhou

Generating accurate SQL queries for user questions (text-to-SQL) has been a long-standing challenge since it requires a deep understanding of both the user's question and the corresponding database schema in order to retrieve the desired…

Computation and Language · Computer Science 2024-06-07 Zijin Hong , Zheng Yuan , Hao Chen , Qinggang Zhang , Feiran Huang , Xiao Huang

Large language models (LLMs) with in-context learning have significantly improved the performance of text-to-SQL task. Previous works generally focus on using exclusive SQL generation prompt to improve the LLMs' reasoning ability. However,…

Computation and Language · Computer Science 2024-07-15 Zhenhe Wu , Zhongqiu Li , Jie Zhang , Mengxiang Li , Yu Zhao , Ruiyu Fang , Zhongjiang He , Xuelong Li , Zhoujun Li , Shuangyong Song

To access data stored in relational databases, users need to understand the database schema and write a query using a query language such as SQL. To simplify this task, text-to-SQL models attempt to translate a user's natural language…

Computation and Language · Computer Science 2020-11-05 Amol Kelkar , Rohan Relan , Vaishali Bhardwaj , Saurabh Vaichal , Chandra Khatri , Peter Relan

Text-to-SQL is a subtask in semantic parsing that has seen rapid progress with the evolution of Large Language Models (LLMs). However, LLMs face challenges due to hallucination issues and a lack of domain-specific database knowledge(such as…

Computation and Language · Computer Science 2025-02-26 Xingyu Ma , Xin Tian , Lingxiang Wu , Xuepeng Wang , Xueming Tang , Jinqiao Wang

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

We explore using T5 (Raffel et al. (2019)) to directly translate natural language questions into SQL statements. General purpose natural language that interfaces to information stored within databases requires flexibly translating natural…

Artificial Intelligence · Computer Science 2020-11-10 Ning Li , Bethany Keller , Mark Butler , Daniel Cer