testerhn

Could someone explain P != NP to me like I'm literally five :-)

What is P? What is NP?

Why and what part of it is nondeterministic and deterministic? How does verification play into it?

Does this only apply to decision (yes/no) problems or can it be other problems?

What does an equal to and not equal to relationship mean? Why does it matter?

Also what is NP-Hard? What is NP-Complete?

Thank you!

What is your workflow for developing, testing and versioning SQL queries?

My company has data pipelines that query a number of databases, such as MySQL and BigQuery. The SQL queries are typically read from a file or inlined as a string.

It seems to be challenging to develop, test and reuse SQL queries as you would code in programming languages like Python or Java.

For example, I'd like to decompose queries into reusable units that can be individually tested without heavy-weight external or remote dependencies and complicated setup, have any ideas?