Chaitanya questions

• "There can only be one IDENTITY column per table" - Why?
• Use of Constructors - Odd Doubt
• Solving recurrences
• Overlapping divs
• How to use ASP.NET Authorization Yet Permit Access to .css Files?
• ERROR: query has no destination for result data
• Generating GUID
• How does the Python conditional operator workaround work?

Chaitanya answers