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What is executive plan?
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What is a SQL * NET?
What is the difference between primary key and secondary key?
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What types of questions are asked in NIC(Natinal Informatics Centre)'s interview?If any one has any information about this,I would be very thankful to him/her.....
Let?s say you have 100,000 records and you want to delete 95,000 at a time and keep only 5 thousand. But in local memory you don?t have enough space for 95,000 records. What do you do in this case? How do you delete without any problem with time and performance?
What is the use of FILE option in EXP command ?
Which is the best database?
What is the difference between multiload and fastload interms of performance?
What is building blocks of client/server?
Who proposed the relational model?
When connection to database is failed, Which exception will be thrown?
Why are recursive relationships are bad? How do you resolve them?
Can Full Backup be performed when the database is open ?
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