Download 5 - Elte

Controlling the Database
Copyright © 2004, Oracle. All rights reserved.
Objectives
After completing this lesson, you should be able to do
the following:
• Start and stop iSQL*Plus
• Start and stop Enterprise Manager Database
Control
• Start and stop the Oracle Listener
• Start up and shut down Oracle Database 10g
5-2
Copyright © 2004, Oracle. All rights reserved.
Starting and Stopping iSQL*Plus
5-3
$ isqlplusctl start
iSQL*Plus 10.1.0.2.0
Copyright (c) 2004 Oracle.
Starting iSQL*Plus ...
iSQL*Plus started.
All rights reserved.
$ isqlplusctl stop
iSQL*Plus 10.1.0.2.0
Copyright (c) 2004 Oracle.
Stopping iSQL*Plus ...
iSQL*Plus stopped.
All rights reserved.
Copyright © 2004, Oracle. All rights reserved.
Management Framework
The three components of the Oracle Database 10g
management framework are:
• Database instance
• Listener
• Management interface
– Database Control
– Management agent (when using Grid Control)
Management
agent
-or-
Database
Control
Management interface
5-4
Listener
Copyright © 2004, Oracle. All rights reserved.
Starting and Stopping Database Control
$ emctl start dbconsole
TZ set to US/Pacific
Oracle Enterprise Manager 10g Database Control Release 10.1.0.2.0
Copyright (c) 1996, 2004 Oracle Corporation. All rights reserved.
http://edrsr9p1.us.oracle.com:5500/em/console/aboutApplication
Starting Oracle Enterprise Manager 10g Database Control
...................... started.
-----------------------------------------------------------------Logs are generated in directory
/u01/app/oracle/product/10.1.0/db_1/edrsr9p1.us.oracle.com_orcl/sys
man/log
$ emctl stop dbconsole
TZ set to US/Pacific
Oracle Enterprise Manager 10g Database Control Release 10.1.0.2.0
Copyright (c) 1996, 2004 Oracle Corporation. All rights reserved.
http://edrsr9p1.us.oracle.com:5500/em/console/aboutApplication
Stopping Oracle Enterprise Manager 10g Database Control ...
... Stopped.
5-5
Copyright © 2004, Oracle. All rights reserved.
Accessing Database Control
5-6
Copyright © 2004, Oracle. All rights reserved.
SYSOPER and SYSDBA
5-7
Copyright © 2004, Oracle. All rights reserved.
Database Home Page
5-8
Copyright © 2004, Oracle. All rights reserved.
Changing the Listener Status
5-9
Copyright © 2004, Oracle. All rights reserved.
Startup and Shutdown
Click Advanced Options
to select startup options
and shutdown mode
5-10
Copyright © 2004, Oracle. All rights reserved.
Starting Up a Database
NOMOUNT
OPEN
STARTUP
MOUNT
NOMOUNT
Instance
started
SHUTDOWN
5-11
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Starting Up a Database
MOUNT
OPEN
STARTUP
MOUNT
NOMOUNT
Control file
opened for this
instance
Instance
started
SHUTDOWN
SHUTDOWN
5-12
Copyright © 2004, Oracle. All rights reserved.
Starting Up a Database
OPEN
OPEN
STARTUP
MOUNT
NOMOUNT
All files opened as
described by the control
file for this instance
Control file
opened for this
instance
Instance
started
SHUTDOWN
SHUTDOWN
5-13
Copyright © 2004, Oracle. All rights reserved.
Shutting Down the Database
Shutdown Mode
A
I
T
N
Allow new connections
No
No
No
No
Wait until current sessions end
No
No
No
Yes
Wait until current transactions end
No
No
Yes
Yes
Force a checkpoint and close files
No
Yes Yes
Yes
Shutdown mode:
• A = ABORT
• I = IMMEDIATE
• T = TRANSACTIONAL
• N = NORMAL
5-14
Copyright © 2004, Oracle. All rights reserved.
SHUTDOWN Options
During
On the way down:
• Database
buffer cache
written to
the data files
• Uncommitted
changes rolled
back
• Resources
released
SHUTDOWN
NORMAL
or
SHUTDOWN
TRANSACTIONAL
or
SHUTDOWN
IMMEDIATE
Consistent database
(clean database)
5-15
Copyright © 2004, Oracle. All rights reserved.
On the way up:
• No
instance
recovery
SHUTDOWN Options
On the way down:
• Modified
buffers
are not
written to the
data files
• Uncommitted
changes are
not rolled
back
On the way up:
• Online redo
SHUTDOWN ABORT
log files used
or
to reapply
Instance Failure
changes
or
STARTUP FORCE
• Undo
segments
used to roll
back
uncommitted
changes
• Resources
Inconsistent database
released
(dirty database)
5-17
During
Copyright © 2004, Oracle. All rights reserved.
Initialization Parameter Files
spfiledb01.ora
5-18
Copyright © 2004, Oracle. All rights reserved.
Viewing Initialization Parameters
5-19
Copyright © 2004, Oracle. All rights reserved.
Viewing the Alert Log
5-20
Copyright © 2004, Oracle. All rights reserved.
Summary
In this lesson, you should have learned how to:
• Start and stop iSQL*Plus
• Start and stop Enterprise Manager Database
Console
• Start and stop the listener
• Start up and shut down the database
5-21
Copyright © 2004, Oracle. All rights reserved.
Practice 5:
Controlling the Database
This practice covers the following topics:
• Connecting to the database using SQL*Plus and
iSQL*Plus
• Stopping and starting Enterprise Manager
Database Control
• Stopping and starting the database
• Stopping and starting iSQL*Plus
5-22
Copyright © 2004, Oracle. All rights reserved.