## Solved: Optimize query with null and false checks in WHERE clause

Question: Can I make the following query shorter and/or optimal? If t_hv_involved is true then it should filter on num_vehicle_hv > 0. If t_hv_involved is false or null, do not filter. Best Answer: Assuming t_hv_involved is type boolean as it ...

## Solved: Does Python support short-circuiting?

Question: Does Python support short-circuiting in boolean expressions? Best Answer: Yep, both and and or operators short-circuit — see the docs. If you have better answer, please add a comment about this, thank you! Source: Stackoverflow.com ...

## Solved: Check if at least two out of three booleans are true

Question: An interviewer recently asked me this question: given three boolean variables, a, b, and c, return true if at least two out of the three are true. My solution follows: He said that this can be improved further, but ...

## Solved: How to test multiple variables for equality against a single value?

Question: I’m trying to make a function that will compare multiple variables to an integer and output a string of three letters. I was wondering if there was a way to translate this into Python. So say: which would return ...

## Resolved: Shortcut for and/or evaluation

Question: Is there a shortcut for the following evaluation? One where I do not need to specify value a twice? Thank you. ðŸ™‚ Answer: This should work for you: If you have better answer, please add a comment about this, ...

## Resolved: Truth table of f(x1,x2,x3,x4) function from given two (4-1) multiplexers

Question: Given two (4-1) multiplexers How can I get the truth table of f(x1,x2,x3,x4) function?? Answer: A 4-1 multiplexer has the following general truth-table: The two control inputs A0 and A1 select which of the four inputs is switched through ...