What is a package ? What are the advantages of package ?
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What is a database schema in oracle?
Explain 1st, 2nd, 3rd normalization form of data base
Can Multiple instances be run on Single Machine???
How to divide query output into groups in oracle?
How to assign a table row to a record variable?
Explain how are indexes update?
What is an external table?
Why do you create or replace procedures rather that drop and recreate.
How can you tell how much space is left on a given file system and how much space each of the file systems subdirectories take-up?
What is RULE-based approach to optimization ?
What is merge statement used for?
What is the difference between a primary key & a unique key?