How do I fix Ora-01034?

To resolve ORA-01034, be sure that the ORACLE_HOME and ORACLE_SID properly match within the files /etc/oratab or /var/opt/oracle/oratab . As a last step in solving your ORA-01034 problem and running DBUA, make sure that ORACLE_HOME is set to ‘old’ home, not ‘new’ home.

How do you resolve ORA-01034 Oracle not available ORA-27101 shared memory realm does not exist?

ORA-27101 is often thrown along with ORA-01034 during database installation. ORA-27101 is also seen after installation is complete, when attempting to use SQL*Plus. To resolve this issue with ORA-27101, you should be sure that ORACLE_HOME and ORACLE_SID are correct, and ORACLE_HOME should not have trailing slash.

How do I resolve ORA 27102 out of memory?

Solution: Increase the value of shmall as well. Shmall indicates the total amount of shared memory that the system can use at one time (measured in pages). Make sure that the shmall is larger, not identical, than the setting of your SGA.

How do I find Oracle SID?

The location path of your Oracle Home Registry is as follows:

HKEY_LOCAL_MACHINE >> SOFTWARE >> ORACLE>>
Oracle_SID will show your SID.
Oracle_Home will show the location of your DB Home.
Oracle_BUNDLE_NAME will show the edition of your Oracle Database.
Oracle_SVCUSER will show the windows user for your Oracle Database.

Can’t connect to the database ORA 01034 Oracle not available?

An ORA-01034 error is triggered due to the Oracle system not being available or started up. This could derive from the System Global Area (SGA) necessitating more storage space than what is currently being allocated for your Oracle database. The error could also result during an upgrade of your Oracle systems.

How do I resolve ORA 00845 Memorytarget not supported on this system?

If Automatic Memory Management is not supported If Automatic Memory Management and the MEMORY_TARGET parameter are not supported on the target operating system, remove the MEMORY_TARGET parameter from your VDB Configuration Template and use the SGA configuration parameters SGA_TARGET and SGA_MAX_SIZE instead.

How do I find the SID?

Type WMIC useraccount get name,sid . This is the command to display the SIDs of all user accounts on the system. If you know the person’s username, use this command instead: wmic useraccount where name=”USER” get sid (but replace USER with the username).

What is the default oracle SID?

Table 8-2 Oracle9i Default Accounts and Passwords

Username	Password	More Information
CTXSYS	CTXSYS	Oracle Text Reference
DBSNMP	DBSNMP	Oracle Intelligent Agent User’s Guide
LBACSYS	LBACSYS	Oracle Label Security Administrator’s Guide
MDSYS	MDSYS	Oracle Spatial User’s Guide and Reference