ORA-01219: database not open: queries allowed on fixed tables/views only

问题

I Am using oracle 11g and SQL developer tool. When i tried to retrieve rows from db i am getting error message as :-

ORA-01219: database not open: queries allowed on fixed tables/views only)

I looked for sgadef.dbf file and it was missing in home directory.. Can someone help me to make it working.

回答1:

First of all check the status of the instance you work with (this may need to connect under administrator account):

select status from v$instance;

Probably you will get

STATUS
------------
MOUNTED

Under sys account try to complete

ALTER DATABASE OPEN;

and check that it's completed successfuly. If not - please share the result of output and alert log in your question.

回答2:

just in case if someone comes to here for this question

RECOVER DATABASE; and then ALTER DATABASE OPEN;

fixed my issue.

回答3:

SQL>

ALTER DATABASE OPEN;
ALTER DATABASE OPEN *

ERROR at line 1:
ORA-01113: file 1 needs media recovery
ORA-01110: data file 1: 'C:\APP\ADMINISTRATOR\ORADATA\WIND\SYSTEM01.DBF'

来源：https://stackoverflow.com/questions/22940636/ora-01219-database-not-open-queries-allowed-on-fixed-tables-views-only