Sometimes you need to perform some complex SQL queries depending on some aggregate operations or functions. In most cases, these complex operations could be achieved by series of queries with joins and groupings, but, sometimes it is almost impossible to achieve this by the basic queries and functions natively supported by SQL. In this case, you need to create your SQL custom user-defined aggregate functions. If you want to know more, you can read this article.

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4. Sometimes you need to perform some complex SQL queries depending on some aggregate
operations or functions. In most cases, these complex operations could be achieved by series
of queries with joins and groupings, but, sometimes it is almost impossible to achieve this by
the basic queries and functions natively supported by SQL. In this case, you need to create
your SQL custom user-defined aggregate functions. If you want to know more, you can read
this article.
[Development Simply Put] How To Create SQL
Custom User-Defined Aggregate Functions
"If you can't explain it simply, you don't understand it well
enough" -Albert Einstein

6. I am "Ahmed Tarek" the owner and author of the "Development Simply Put" blog. During my career
days and day after day I got more confident that it's all about sharing not the title you have. I believe
that everyone has something to share whatever small he thinks of it. Sometimes a great idea comes
out of just a tiny idea and the same for knowledge. I always try to gain knowledge and learn new skills
and I found that the best way to learn is to try to teach what you already know. This makes you think
of the best simplest way to explain complex logic which makes you spot some points may be even
yourself didn't recognize in the first time.
The greatest thing in the human mind is that it carries out too complicated operations and finally
presents it into a simple form, so why do we always try to re-complicate things? This is what
encouraged me to start my blog -Development Simply Put
(http://developmentsimplyput.blogspot.com)- trying to do my best to simplify main concepts in IT
development and share my humble knowledge in this field.
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"If you can't explain it simply, you don't understand it well
enough" -Albert Einstein

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"If you can't explain it simply, you don't understand it well
enough" -Albert Einstein