[oracle@localhost ~]$ oerr ora 1034
01034, 00000, "ORACLE not available"
// *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.
// *Action: Refer to accompanying messages for possible causes and correct
//          the problem mentioned in the other messages. 
//          If Oracle has been initialized, then on some operating systems,
//          verify that Oracle was linked correctly. See the platform
//          specific Oracle documentation.

orclz>
orclz> shu abort
ORACLE instance shut down.
orclz>
orclz>
orclz>
orclz> conn scott/tiger
ERROR:
ORA-01034: ORACLE not available
ORA-27101: shared memory realm does not exist
Process ID: 0
Session ID: 0 Serial number: 0


Warning: You are no longer connected to ORACLE.
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