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 ...

Abstract: This paper presents novel types of discrete differential operators for two-variable functions, periodic for each variable. They determine values of derivatives, both the first- as well the ...

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

Microsoft Excel is arguably the greatest spreadsheet application from Redmond, and there’s a good reason so many number crunchers use it for all of their number crunching needs. While using Microsoft ...

Abstract: This article presents a novel variable-parameter variable-activation-function finite-time neural network (VPA-FTNN) to deal with joint-angle drift issues of redundant-robotic arms. Different ...

An aggregate function error in SQL occurs when you try to use an aggregate function in a way unsupported by the SQL language. You may experience the error if you do ...

function cannot be dropped with the DROP TABLE command through Python script. I have to drop tables manually. The inspect object sees the existence of tables, but .execute() function cannot find ...

Exports the contents of a table, view, or query of a SQL Server database to an RFC 4180-compliant CSV file. This function supports the export of huge result sets by writing the contents of the CSV ...

An illustration of a magnifying glass. An illustration of a magnifying glass.

SQL Server's OpenJson function will let you dismantle JSON structures into relational tables, including tables with foreign/primary key relationships. As I noted in an earlier column, JSON is great ...