Development hiring managers and potential interviewees may find these open-ended SQL Server proficiency interview Q&As useful.

In this tutorial, we will step through installing PostgreSQL, connecting to the database, loading some data, and running a variety of SQL queries. To cap it all off, we’ll execute a query ...

Free Tutorial : Performing a Unit Test of Your PL/SQL in Oracle SQL - h2Purposeh2This tutorial shows you how to perform a unit test of your PLSQL code in Oracle SQL Developer 30h2Time to ...

Read this SQL tutorial to learn when to use SELECT, JOIN, subselects and UNION to access multiple tables with a single statement.

In this Microsoft SQL Server and JDBC tutorial, you'll learn how to connect to a Microsoft SQL Server in Java using JDBC. The steps are relatively straightforward: Each database is different, so ...

How to Create a Table From Query Results in Microsoft SQL. If your business uses relational databases to store data, you may have used a SQL SELECT clause to create new tables from query results.

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.

Query federation is a way to make use of distributed data sources on the Web, including many SPARQL endpoints as well as relational databases. SWObjects makes use of mapping rules represented as ...

I’ve created a script that monitors a table in a SQL Server database. I’m only interested in one column in the table: TimeStamp. If the maximum (newest) value in TimeStamp is more than 30 ...

Each version of Microsoft ’s SQL Server comes with five years of full support, followed by five years of security-only updates. Here are five questions to ask as your version hits the five-year mark: ...