Abstract: Aggregation functions such as COUNT, SUM, AVG, MAX, and MIN are basic tools for summarizing data in SQL. However, their behavior can be affected by several factors such as the occurrence of ...

Abstract: Queries containing user-defined functions (UDFs) are widely used, since they allow queries to be written using a mix of imperative language constructs and SQL, thereby increasing the ...

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, ...

Recycled bottles and glass aggregate helped bring a $31-million overnight parking apron project to substantial completion months ahead of schedule at Philadelphia International Airport in Philadelphia ...

Dividends declared and distributed on or after April 1, 2020, are taxable in the hands of recipient shareholders. Such dividend income is subject to 10% TDS, if the amount received exceeds Rs 5,000 in ...

The course will help you uncover insights in a sample dataset using a case study approach. You will use all SQL queries to understand the cause for the dip in the pre-sales. This module covers how to ...