Bandi-T questions

Bandi-T answers

• SQL - join up two separate sql queries
• Sine wave frequency fitting
• Can you separate python projects logically into separate files/classes like in C#/Java?
• Is there some thing in python language which is similar to interface in Java or C++ as well? [duplicate]
• Can't pass mysqli connection in session in php
• Why not "Invalid column name XYZ" error in subquery; although column name is not in subquery table?
• What is compression for in PHP's Memcache?
• Calculate distance between two x/y coordinates?
• checking if a number is divisible by 6 PHP
• Easy to use time-stamps in Python