A designer version of the tau protein, developed by a team led by UT Southwestern Medical Center researchers, maintains its ...

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 is the second part of a two-part series on developing aggregate harmonic models of residential customers. Part 1 paper presents a general approach for the decomposition of load ...

When we add y as non-aggregate, non-group by column, we also get a message we would expect if count_if were an aggregate function: Binder Error: column "y" must appear in the GROUP BY clause or must ...

SQL is a tool that is widely used in the manipulation of data and featuring in the relational database. They are applied in querying, manipulating as well as reporting data and it is commonly used by ...

I tried to implement my own count aggregate. It works well for simple queries, generating the same result as the built-in count. However, all 0s in count's output becomes NULL if used in subqueries, ...