I’m currently working with OpenSearch SQL and have encountered a limitation that I hope could be addressed in future releases. In my use case, I need to perform SQL queries involving JOIN operations ...

From the many courses available here is a curated list to get you started and level up your SQL game. SQL is a super helpful, universally applicable language for accessing and manipulating databases.

The National Labor Relations Board (NLRB) recently ruled that companies can no longer offer severance agreements that include non-disparagement and confidentiality clauses. “Employers intending to lay ...

SQL is one of the most popular coding languages used today to handle data stored on relational databases. SQL works exceptionally well with structured data, It can be overwhelming to learn initially, ...

This article is also available as a PDF download. Arranging data in a manner that’s meaningful can be a challenge. Sometimes all you need is a simple sort. Often, you need more–you need groups you can ...

(1573, 'Mark Lyon', 1175, 40, TO_DATE('07-09-2008', 'DD-MM-YYYY'), 1550, 110), (1932, 'Stuart Twain', 1608, 60, TO_DATE('23-08-2009', 'DD-MM-YYYY'), 1550, 230), (1875 ...

clauses IN and EXISTS are interchangeable. However, they’re quite different in how they handle NULL values and may give different results. The problem comes from the fact that, in an Oracle database, ...