Shelley Doll finishes her coverage of SQL data types with an overview of datetime and interval data types. Learn more about the basic syntax of these standard SQL types. Datetimes and intervals are ...

Assuring optimal performance of database applications starts with coding properly formulated SQL. Poorly written SQL and application code is the cause of most performance problems. As much as 75% of ...

This post is one of a series that introduces the fundamentals of NOSQL databases, and their role in Big Data Analytics. What is a multivalue database? Multivalue databases have tabular structure that ...

Learn how to master the SELECT statement to form truly useful data queries. This article explains functions, clauses, and keywords that will make your life a lot easier. Due to popular demand, we’re ...

I've been working with SQL Server for over 20 years now, Generally, I limit my tools to the things I might expect to find in a given client environment. My toolbox typically includes the tools that ...

A relatively new concept in the world of database systems is the NoSQL DBMS. What is NoSQL? Well, I bet you guessed that it doesn’t use SQL, right? I mean, it is sort of right there in the name. But ...

I've been playing around with the new Microsoft service, currently in preview and it's time to show off what it can do. Have you ever struggled with a database performance problem or ever struggled to ...

When I am working with an Oracle database, I still find myself using SQL*Plus for many quick and dirty database queries. In particular, I often look up constraints in SQL*Plus. In this post, I look at ...