On opening sqlplus, I get the error:
“Oracle not available”
“Shared memory realm does not exist”
Solution done by me after searching Google:–
1.> In cmd type "sqlplus conn / as sysdba" without quotes
2.> startup nomount;
It shows the message
ORACLE instance started.
Total System Global Area (some value) bytes
Fixed Size (some value) bytes
Variable Size (some value) bytes
Database Buffers (some value) bytes
Redo Buffers (some value) bytes
3.>alter database mount;
4.> alter database open;
Now your data base is ready to use.
I just posted it here because it will be easier for me to access if the error repeats...