Check the last time database was shutdown

Question

how do I check to see the last time the database was shutdown?

Answer 1

alert log is good source
you can first create a external table base on alert log
something like this
CREATE TABLE alert_ext
text_line varchar2(255)
ORGANIZATION EXTERNAL
TYPE ORACLE_LOADER
DEFAULT DIRECTORY bdump_dir
ACCESS PARAMETERS
records delimited by newline
fields
REJECT ROWS WITH ALL NULL FIELDS
LOCATION
'alert_etest.log'
Then run this query (credit to Tom)
SQL> l
1 select last_time, start_time, start_time-last_time days
2 from (
3 select to_date(last_time, 'Dy Mon DD HH24:MI:SS YYYY') last_time,
4 to_date(start_time,'Dy Mon DD HH24:MI:SS YYYY') start_time
5 from (
6 select text_line,
7 lag(text_line,1) over (order by r) start_time,
8 lag(text_line,2) over (order by r) last_time
9 from (
10 select rownum r, text_line
11 from alert_ext
12 where text_line like '___ ___ __ __:__:__ 20__'
13 or text_line like 'Starting ORACLE instance %'
14 )
15 )
16 where text_line like 'Starting ORACLE instance %'
17* )
SQL> /
LAST_TIME START_TIME DAYS
SEP 07 2005 15:38:09
OCT 12 2005 17:46:08 OCT 12 2005 17:47:47 .001145833
MAY 16 2006 14:30:22 MAY 16 2006 14:30:39 .000196759
MAY 31 2006 16:25:17 MAY 31 2006 17:22:05 .039444444
JUN 21 2006 18:50:45 JUN 21 2006 18:50:56 .000127315
JUL 10 2006 12:07:53 JUL 10 2006 12:08:00 .000081019
JUL 10 2006 12:08:07 JUL 10 2006 12:23:06 .010405093
7 rows selected.