When I enabled Extended Data Types on my multi tenant test database i have faced with problem some of pdbs successfully upgraded and opened but some pdbs not.
now i can't open them, it error like bellow. If someone now how to disable Extended Data Types or have solution for this problem please help.
SQL> show pdbs
CON_ID CON_NAME OPEN MODE RESTRICTED
---------- ------------------------------ ---------- ----------
2 PDB$SEED READ ONLY NO
3 DB1 READ WRITE NO
4 DB2 MOUNTED
5 DB3 READ WRITE NO
6 DB4 READ WRITE NO
7 DB5 READ WRITE NO
8 DB6 MOUNTED
SQL> alter session set container=DB2;
Session altered.
SQL> startup;
ORA-14696: MAX_STRING_SIZE migration is incomplete for pluggable database DB2
SQL> alter session set container=DB6;
Session altered.
SQL> alter pluggable database open;
alter pluggable database open
*
ERROR at line 1:
ORA-14696: MAX_STRING_SIZE migration is incomplete for pluggable database DB6