What is a trigger and what are its types in oracle?
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What is the difference between INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN?
Explain oracle instance.
what are actual and formal parameters?
what is primary key and foreign key when and where have to use
Why do we use coalesce function in oracle?
Explain the use of ignore option in imp command.
Without giving condition how to retrieve the unmatched records from table.
How do I spool in oracle?
What are the uses of linked server and explain it in detail?
What does `(+)` do in a where clause?
What is the difference between Delete, Truncate and Drop in Oracle?
what is the difference between joins and set operators.i am always confusing with two,can u pls kindly help me .