What is an Oracle Instance?
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What is partitioned table in Oracle?
How many types of auditing in Oracle?
What is the use of Redo Log Information ?
Explain integrity constraints?
How do you ensure database security?
Who i will insert 1 lacks record in a Database table
primary key is foreign key for the same table?
How can we manage the gap in a primary key column created by a sequence? Ex:a company has empno as primary key generated by a sequence and some employees leaves in between.What is the best way to manage this gap?
How to work with data objects interactively?
what is the difference between joins and set operators.i am always confusing with two,can u pls kindly help me .
how to retrieve 1st and last row of table without using group functions??
What are the differences between char and varchar2 in oracle?