How to make a replica of existing oracle server to another server?

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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.

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I got an error SQL1042C. An unexpected system error occurred. Explanation: A system error occurred. One possible reason for this error is that the database manager is not installed correctly or the environment is not set up correctly. On OS/2, while trying to start the database manager, a very common reason for this error is a corrupted NET.ACC file. The command cannot be processed. The tables and views would not be opened. What is the way to open the dataase? pls help me

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What is fill factor? : sql server DBA

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What is the default port no on which sql server listens? : sql server DBA

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currently iam working in mnc as a oracleappsdba,please send the EXPERIENCE RESUME those who r worked as a oracle apps dba

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what is logical system in sap basis

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which background process will run @ the time of creation of catalog database

1 Answers   CSC,

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Explain the difference between a FUNCTION, PROCEDURE and PACKAGE.

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What is the difference between dropping a database and taking a database offline? : sql server DBA

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What would you do with an "in-doubt" distributed transaction?

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What view would you use to determine free space in a tablespace?

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