Oracle19C配置MAX_STRING_SIZE
问题
在oracle19C数据库恢复完成后，进行PDB得启动未成功，报错了。
SQL> show pdbs;
CON_ID CON_NAME OPEN MODE RESTRICTED
---------- ------------------------------ ---------- ----------
2 PDB$SEED READ ONLY NO
4 TEST MOUNTED
SQL> alter pluggable database TEST open;
alter pluggable database TEST open
*
ERROR at line 1:
ORA-14694: database must in UPGRADE mode to begin MAX_STRING_SIZE migration
