Envecon IT Systems Software Developer interview questions

there were many questions asked tell me about yourself, tell me about your current project , what is array list,what is temp table in sql, difference between method and function, differnce between stored procedures and function,what is structure,what is ajax ,where have you used ajax in project, different types of assemblies, difference between candidate keys and primary key, try -catch can be nested,multiple catch blocks can be executed? which catch block will get executed, what is oops, properties of oops, what is polymorphism,what is inheritance,what is an abstract class,what are different types of scope of variables , tell me about aggregate functions, what is wildcard operator in sql, what is cursor,what is view ,what is trigger