what is the use of ocr?
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how do we explain a project in cognos in an interview? please help me. Also how do we perform testing in cognos after creating reports?
What is the difference between clustered and non-clustered index? : sql server DBA
what do you understand by flashback feature of oracle?
What is the cache hit ratio, what impact does it have on performance of an Oracle database and what is involved in tuning it?
What are the operating modes in which database mirroring runs? : sql server DBA
Other than making use of the statspack utility, what would you check when you are monitoring or running a health check on an Oracle 8i or 9i database?
How do you switch from an init.ora file to a spfile?
Explain the difference between a hot backup and a cold backup and the benefits associated with each?
Oracle client is not able to connect to Oracle server although tnsnames.ora file has valid enteries. Oracle error message is “ cannot resolve net service name”. Mention any three reasons.
How do you tell what your machine name is and what is its IP address?
which background process invoke at the time of upgradation tell me???
How does Oracle guarantee data integrity of data changes?
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