I faced this issue while creating database using DBCA in one of the UAT database server. Issue was with just DBCA , I was able to create database manually without any issues.
Each attempt of creating database with DBCA utility was failing with ORA-01034: ORACLE not available.
After putting lots of efforts, I started concentrating on error itself ORA-01034: ORACLE not available.
What is the possibility of getting ORA-01034 in normal scenario:
- Database is down & u r trying execute some sql statement on it
Simple… I am creating my database, means database is not open, & what is the possibility of someone executing any query on my database….
one and only glogin.sql is the culprit.
What Oracle documentation says about glogin.sql
There’s a script in ORACLE_HOME/sqlplus/admin which is called glogin.sql. This script is automatically run when the user starts SQL*PLUS or uses the Connect command, hence any command added to it will be executed.
I found following sql was present in glogin.sql:
select name,open_mode from v$database;After removing all entries from glogin.sql, I was able to create database using DBCA without issues.
..
Hope so this post will be useful for u 🙂
Cheers
Regards,
Adityanath
Categories: ORA errors
Adityanath's Oracle Blog 
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Adi
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