This is a performance testing framework for Spark SQL in Apache Spark 2.2+. The framework contains twelve benchmarks that can be executed in local mode. They are organized into three classes and ...

A cron job that worked perfectly for six months suddenly runs two hours early. A payment dashboard shows yesterday's revenue in today's column. Session tokens expire at unpredictable times. These bugs ...

Curious engineer writing about things that work, fail, and unexpectedly scale. SQL practice is boring because nothing feels real. You type SELECT * FROM users, get a green checkmark, move on. The data ...

created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP, updated_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP, CONSTRAINT fk_neg_product FOREIGN KEY (product_id) ...

ESET researchers provide an analysis of an attack carried out by a previously undisclosed China-aligned threat actor we have named Blackwood, and that we believe has been operating since at least 2018 ...

Tim Chapman discusses your iteration choices in SQL Server 2008 and explains why determining which option performs better depends on the situation. In a previous TechRepublic column about SQL Server ...