“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 ...

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 ...

If you're seeking to optimize your SQL queries and make the most of your database, this fundamental guide is an excellent resource. You'll learn the essential techniques to enhance database ...

• The project is to develop an SQL query processor with JAVA and JAVACC. • The application can parse the SQL string, execute the query with data files and return the query result. • Developed query ...

Continously growing usage of XML (eXtensible Markup Language) data demands for development of powerful query optimization systems. Optimization approaches for XML databases depend on database type.

A common SQL habit is to use SELECT * on a query, because it’s tedious to list all the columns you need. Plus, sometimes those columns may change over time, so why not just do things the easy way? But ...

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 ...