Domande di colloquio di Wipro: 1. What is constructor in python, is it same name as class? 2. SQL DML and DDL Difference? 3. How is null represented? 4. What is Garbage Collector?

Wipro

1. What is constructor in python, is it same name as class? 2. SQL DML and DDL Difference? 3. How is null represented? 4. What is Garbage Collector?