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ORA-01034: ORACLE Not Available

Fecha de publicación: Feb 19, 2026
Descripción
When connecting to an Oracle data source, the following error occurs:
ORA-01034: ORACLE not available ORACLE 27101: shared memory realm does not exist Linux-x86 Error: 2: No such file or directory

Cause

Oracle was not started up. Possible causes include the following:
  • The SGA requires more space than was allocated for it.
  • The operating-system variable pointing to the instance is improperly defined.
Solución
Work with your DBA to initialize the Oracle database. Refer to accompanying messages for possible causes and correct the problem mentioned in the other messages.
If Oracle has been initialized, verify that Oracle was linked correctly. 
Recursos adicionales

ORA-01034: ORACLE NOT AVAILABLE at Ask the Oracle Masters (AskTOM)

 


Número del artículo de conocimiento

001473536

 
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