- 06 Sep, 2023
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ORA-01034: ORACLE not available
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.