Please enter the user name: Scott/tiger
ERROR:
ORA - 01034: ORACLE not available
ORA - 27101: Shared memory realm does not exist
Yesterday also can enter oracle under DOS with up sqlplus
Can't get into today, with pl/SQL also can't get into what's going on?
CodePudding user response:
First, check your ORACLE_HOME or is set correctly or not.Second, check whether oracle has started, select the status from v $instances
CodePudding user response:
-- a sign to see what
SQL> The alter database open;
CodePudding user response:
We haven't should be a databaseCodePudding user response:
Use the command line tools, use the default SYS user login tryStart the mount state
Then OPEN the
What specific cast error
CodePudding user response:
Didn't up should be a database,CodePudding user response:
The database instance didn't start up! The command log in as an administrator to up sqlplus and then startup,