The above plan shows operations at a high level but does not dive deeply into how the CTE's internal query (`SELECT * FROM orders WHERE order_date > '2023-01-01'`) is executed.It appears as a single ...

An SQL query optimizer that executes an SQL query plan and visualizes its performance, made for a project for NTU's CZ4031 (Database System Principles) course. Queries are tested against TPC-H, a ...

The Spark SQL system improves efficiency of execution by describing data analysis tasks and optimizing according to query optimization theory. However, the query optimization function of Spark SQL ...

The input to a query optimizer is a “logical plan,” which itself is the result of parsing the input SQL and converting it to a high-level collection of the operations required to execute the ...

This Monday marks the global launch of SQLFlash, an AI-powered SQL optimization tool designed to help developers and database administrators tackle one of their biggest challenges: slow queries.

In this two-part series, I'll tell you about some improvements Microsoft is making in SQL Server 2022 to improve cardinality estimates and deal with another common query optimization concern ...

OpenAI’s AI LLM (Large Language Model) can handle programming languages as well as human languages, that’s well established. SQL developers rejoice – SQL code is included! Therefore, it follows that ...