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I'm getting the error "ORA-01109: database not open" in Oracle SQL Developer, in Oracle Database 19c and SQL Developer 21.2.1 Windows 64-bit.

I've gone into SQL Plus to open the database and used commands like "ALTER DATABASE OPEN;" and shut down/restart the instance to open the database. It was originally on Status "MOUNTED," but it now says Status is "OPEN" when entering the command "select instance_name, status from v$instance;" (instance_name is listed as "orcl"). However, I still get the same ORA-01109 error when opening my database, "CS4347" in Oracle SQL Developer. How can I open this database in Oracle SQL developer? This error occurs when I try to expand the database or connect to it.

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  • If multitenant, check the status of your pluggable databases: SQL>show pdbs Commented Dec 1, 2021 at 19:49
  • @BjarteBrandt i got: SQL> show pdbs; CON_ID (2, 3) / CON_NAME (PDB$SEED, ORCLPDB) / OPEN MODE (READ ONLY, MOUNTED) / RESTRICTED (NO); Is "MOUNTED" corresponding to ORCLPDB the problem here? Commented Dec 1, 2021 at 20:04
  • please update your question and format your findings. Commented Dec 1, 2021 at 20:34
  • Its already opened but still getting the same error while making connection in Oracle SQL Developer software. stackoverflow.com/questions/70706962/… Commented Jan 14, 2022 at 7:09

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With Oracle multitenant your can open the pdb and save the state:

sqlplus / as sysdba # to the CDB alter pluggable database orclpdb open; alter pluggable database orclpdb save state;
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