What is a ddl statement?
What is difference between equi join and inner join?
What is the most common type of join?
What is a periodical index?
What is abstracting periodical?
What is mean by candidate key?
What is purpose of normalization?
What is the difference between composite index and covering index?
What is difference between count (*) and count column?
What is the synonym of join?
What is reference section?
What is the difference between varchar and nvarchar?
What is clustered primary key?
What is the difference between nvl and nvl2?
What is indexing and its types?