Abstract: We introduce a web-based SQL query visualisation tool aimed at improving students' understanding of SQL query execution. The tool, available as an Open Educational Resource (OER), allows ...

Aggregate functions help turn large datasets into simple summaries used across many fields. GROUP BY and HAVING allow structured grouping and filtering of data for clearer reports. Functions like ...

The FIND function allows you to find a text string within another. It returns the position at which a character or string begins within another text string. The output of the above function will be 5, ...

Databases are essential for storing and retrieving structured data supporting business intelligence, research, and enterprise applications. Querying databases typically requires SQL, which varies ...

The Vlookup function is a function that searches for values to return other values in an existing worksheet. The Vlookup function is one of the most used functions in Excel, applying to many practical ...

If you’ve ever found yourself with data that includes extra spaces or unnecessary characters, you know how frustrating it can be to clean it up manually. Fortunately, Excel has a powerful built-in ...

I'm trying to chunk queries into batches so that I can be under the 35kb limit. In doing so, I ran into an error TypeError: sql.trim is not a function, but I'm not ...