Cloud database indexing improves query performance and helps backend teams build reliable systems that scale under production ...

“SQL on everything” is the tagline associated with Presto, the query engine that was initially developed by Facebook to rapidly analyze massive amounts of data — particularly data that lay scattered ...

This book aims to give you the tools and knowledge to get peak performance from your queries, how does it fare? The book, which is largely an update to the author’s Microsoft SQL Server 2014 Query ...

In AI search, query fan-out refers to the expansion of a single query into multiple related sub-queries before a response is generated. Query fan-out optimization becomes practical only when you can ...

In part 1 of my SQL Server 2022 features series, you learned about the improvements to the cardinality estimator component of query optimization. In this installment, you will learn about another ...

Query optimisation in distributed database systems addresses the challenge of selecting an efficient execution plan across multiple networked nodes. Owing to the combinatorial explosion of possible ...

IDERA has released SQL Query Store Optimizer, a new tool in its portfolio of database monitoring tools to help database administrators (DBAs) manage and troubleshoot SQL Query Stores. The free tool ...

David Rowley looks deeply into the improvements coming to the query planner in PostgreSQL 16. For a long time now, PostgreSQL has been able to remove a LEFT JOIN where no column from the left joined ...

An update to the cardinality estimator feature in SQL Server 2022 will be one of the biggest changes to the database engine since its inception. Database engines like SQL Server are incredibly complex ...