Answer / guest

Cause: While looking for prior declarations of a variable or
constant, the compiler found another object with the same
name in the same scope. Or, the headers of subprogram in a
package specification and body are not identical.

Action: Check the spelling of the variable or constant name.
Also check the names of all parameters and exceptions
declared in the same scope. Then, remove or rename the
object with the duplicate name. Or, change the headers of
the packaged subprogram in the package specification or body
so that they are identical.

Please add more information about this Error

ORA-39140: dump file "string" belongs to job string

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TNS-04086: Invalid value for the event string.

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TNS-01416: Process ID string

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ORA-22901: cannot compare nested table or VARRAY or LOB attributes of an object type

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ORA-01239: database must be in ARCHIVELOG mode to use external cache

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NNL-00812: Slowest query processing time: string

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ORA-12724: regular expression corrupt

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RMAN-06082: datafilecopy tag string is ambiguous

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ORA-16502: the Data Guard broker operation succeeded with warnings

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ORA-06978: X.25 Driver: Too many callback tries

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PLS-00313: 'string' not declared in this scope

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RMAN-06581: option string not supported

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