SQL NULL Pitfalls: Why NOT IN Returns Zero Results and 3 Points Where MySQL and Oracle Behaviors Diverge

Introduction"I want to list customers who haven't ordered, but I get zero results," or "The count doesn't match when I exclude cancellations." Among SQL bugs, those caused by NULL are often discovered ...
alibabacloud

FLIP-24: Making SQL Easier with Flink SQL Client

Imagine this scenario: A data analyst wants to analyze real-time data but doesn't know Java or Scala programming. Previously, they would need to find a developer to write code, package, and deploy it ...
Hacker

Chunking Strategies for Structured Data in RAG Systems (Part 2): Where Text-to-SQL Falls Short

This is Part 2 of a three-part series. Part 1 covered how to chunk structured data so a retriever can find it. This article covers the first query pattern, i.e., RAG-based Text-to-SQL. We discuss what ...
GitHub

Natural Language (NL) to SQL Query Generation using Phi-3 (Serverless & Local setup) and Azure OpenAI (GPT-4 model)

This project NLToSql-Phi3_ServerlessDeployment.py demonstrates how to use the Phi-3 model deployed as a serverless API in Azure to convert natural language queries to SQL queries. The project includes ...
learn

A Guide to Query Processing for Memory-Optimized Tables

In-Memory OLTP introduces memory-optimized tables and natively compiled stored procedures in SQL Server. This article gives an overview of query processing for both memory-optimized tables and ...
snowflake

Graph Queries Across Billions of Rows of Scattered Data with Postgres and Apache AGE™

Postgres engines now have access to more data than ever. With extensions like pg_lake, you can connect Postgres to gobs of files in object storage like csv, json, Apache Parquet™ and Apache Iceberg™.
KDnuggets

Creating a Text to SQL App with OpenAI + FastAPI + SQLite

Data has become an indispensable resource for any successful business, as it provides valuable insights for informed decision-making. Given the importance of data, many companies are building systems ...
Hacker

Memory-Optimized Tables in SQL Server: When, Why and How to Implement Them

Database administrator with 14+ years of hands-on experience in database management and database design. After spending 15 years as a SQL Server DBA, I've witnessed numerous technological evolutions, ...
builtin

NOLOCK in SQL Server Explained

CREATE TABLE Employee ( EmployeeID INT, EmployeeName VARCHAR(100) ); INSERT INTO Employee (EmployeeID, EmployeeName) VALUES (1, 'Alice'), (2, 'Bob'), (3, 'Charlie ...
技術評論社

第244回 MySQL Shellで 好きな エディタを 使用する

MySQL Shellは、第226回 MySQL Shellを使ってdumpしてみるや、第216回 MySQL ShellでJavaScriptを使ってMySQLを操作してみよう[その1] でも紹介したように、高機能な関数を使用してさまざまな事ができる ...
habr

SQL vs Excel: когда таблицы уже не справляются

Когда в компании работа выстроена в Excel, проблем нет, пока в таблице несколько тысяч строк. Но бизнес растёт, и вот в файле уже миллион записей.