Everything I can find about ORA-01109 says "run
alter pluggable database XXX open;", but I’m getting ORA-01109 when running that command!
select name, open_mode from v$ containers;
NAME OPEN_MODE ------------ ---------- CDB$ ROOT MOUNTED PDB$ SEED MOUNTED XEPDB1 MOUNTED
alter pluggable database cdb$ root open;
Error starting at line : 2 in command - alter pluggable database cdb$ root open Error report - ORA-01109: database not open 01109. 00000 - "database not open" *Cause: A command was attempted that requires the database to be open. *Action: Open the database and try the command again