How to open a cursor variable?
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1.how to extract the second highest salary from emp table having sal as a column which contains the salary of all employee of an organisation.
What is a initialization parameter file in oracle?
What does COMMIT do ?
How would you go about verifying the network name that the local_listener is currently using?
Explain the use of record length option in exp command.
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?
What is the difference between a hot backup and a cold backup in oracle?
Difference between hot backup vs. Cold backup?
Explain what are the characteristics of data files?
What do you mean by merge in oracle?
What is clusters ?
What is TNS File