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ORA-01034: ORACLE not available
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ORA-01034: ORACLE not available
There are many reasons for ORA-01034, some of them are listed below :
One of the most common reason for
ORA-01034
is Oracle Instance is down.
ORACLE_SID or ORACLE_HOME or both are not properly defined.
Size of SGA is smaller than an Oracle Instance requires.
due to improper configuration of Listener , Remote user may face it.OracleDba•