当尝试打开数据库时，"ORA-01109:数据库未打开“

Question

我能找到的关于ORA-01109的所有东西都写着“运行alter pluggable database XXX open;"，但是我在运行该命令时得到了ORA-01109！

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

Answer 1

这不是打开根容器的方法(它不是一个可插拔的数据库)。只需使用：

alter database open;