What are primary key and foreign key and how they work?
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What is the maximum number of columns in sql table?
a. Can you delete data from a View. b. If Yes, can you delete it if there are multiple tables c. If No, can you delete if there is single source table which is joining.
what are the type of locks ? : Sql dba
What is a self join ?
What is trigger in sql? Explain
How would you reference column values before and after you have inserted and deleted triggers?
What are the 3 modes of parameter?
Can you join views in sql?
What are sql queries used for?
What is sql clause?
What is natural join in sql?
How do you write an inner join query?