Why does Oracle not permit the use of PCTUSED with indexes?

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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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What are the new features in sql server 2005 when compared to sql server 2000? : sql server DBA

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Describe what redo logs are.

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What do the 9i dbms_standard.sql_txt() and dbms_standard.sql_text() procedures do?

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what are the performance views in an oracle rac environment?

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Which dictionary tables and/or views would you look at to diagnose a locking issue?

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In which dictionary table or view would you look to determine at which time a snapshot or MVIEW last successfully refreshed?

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How would you edit your CRONTAB to schedule the running of /test/test.sh to run every other day at 2PM?

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What are the different types of upgrades that can be performed in sql server? : sql server DBA

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Assuming today is Monday, how would you use the DBMS_JOB package to schedule the execution of a given procedure owned by SCOTT to start Wednesday at 9AM and to run subsequently every other day at 2AM.

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Explain what partitioning is and what its benefit is.

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