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Find out the errors with concurrent managers
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Manage the concurrent manager queues on instances
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Take steps to prevent overloading of the managers and resources
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Check the disk utilization
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Maximize the performance by scripts and periodic maintenance
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Look to maximize the space on the disk
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Eliminate log files that build up very fast
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Pinpoint the errors with the packages /procedures
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Use the dynamic tables
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Backup/restore database with cold backup
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Backup/restore database with hot backup
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Monitor rollbacks
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Write rollback statements where there are periodic constraints
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Manage tablespaces
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Effectively run scripts that give the performance of db
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Use different utilities of the database for appls
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Run adodfcmp
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Run concsub
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Run adrelinks
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Run adpatch
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Run adadmin
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Monitor alert logs
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Manage the db
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Run the trace(s)
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Tune the trace(s)
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Writing effective ddls
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Edit and effectively manage the tnsnames /listener files on the server
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Use the client monitors
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Stop and start concurrent managers
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Stop and start listeners
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Stop and start databases
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Monitor users on the systems
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Export and import databases
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Set up the Unix environments
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Set up the Applications environments
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Set up the Oracle environments
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Monitor file systems
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Schedule reboots on the systems
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Check the patch availability of operating system
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Check the patch availability for Oracle apps
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Recompile reports for applications
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Recover database files and manage database recovery - outlining the faster