SQL is the leading language for developing and querying databases, but it has a few quirks.In my last article, I shared 7 SQL mistakes to avoid.Now, let’s take a look at 9 best practices for ...

The JPA Query object is smart enough to map fields returned from a native SQL query to the fields in the corresponding entity if you provide the name of the class to the createNativeQuery method. The ...

Read this SQL tutorial to learn when to use SELECT, JOIN, subselects and UNION to access multiple tables with a single statement. It’s sometimes difficult to know which SQL syntax to use when ...

The query execution engine should prune the vector lists (i can't find words for this right now). Ok I did the foundation of this work in other tasks, and the task-tracking is quite messy but I'm not ...

The Broker Java Threads responsible for running queries will permanently hang on certain SQL queries. Affected Version. Druid 0.22.1. Description. When certain SQL queries are made to Druid the Broker ...

When SQL Server 2014 debuted, you didn't have a lot of options for how to fix the queries that slowed down under the new CE -- you had the big hammer of not using it, or hinting queries to try to ...