What’s your average success rate of getting a SQL statement right on the first try? In best case, you botched a simple statement without side effects and just have to try again with correct syntax or ...

With most Excel spreadsheets, you enter data manually into cells and then use formulas or other functions to analyze it or perform calculations. If you have a large data source, such as an Access ...

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 ...

Let's break down when it's ideal to use the NOLOCK hint and when you should never use it. As a consultant, I work on wide swaths of database systems, which means I get to see many, many SQL statements ...

Data work in 2026 asks for more than chart building. Professionals are expected to clean data, query databases, explain ...

Using the CONNECT statement is optional for some DBMSs. However, if it is not specified, the default values for all of the database connection arguments are used. Any return code or message that is ...

Google Cloud has recently announced the preview of a global queries feature for BigQuery. The new option lets developers run SQL queries across data stored in different geographic regions without ...