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Copyright © 2004, Oracle. All rights reserved.

Controlling the Database


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


Starting and Stopping iSQL*Plus

$ isqlplusctl startiSQL*Plus 10.1.0.2.0Copyright (c) 2004 Oracle. All rights reserved.Starting iSQL*Plus ...iSQL*Plus started.

$ isqlplusctl stopiSQL*Plus 10.1.0.2.0Copyright (c) 2004 Oracle. All rights reserved.Stopping iSQL*Plus ...iSQL*Plus stopped.


Management Framework

The three components of the Oracle Database 10gmanagement framework are:• Database instance • Listener• Management interface

– Database Control– Management agent (when using Grid Control)

ListenerDatabase Control

Managementagent

Management interface

-or-


Starting and Stopping Database Control

$ emctl start dbconsoleTZ set to US/PacificOracle Enterprise Manager 10g Database Control Release 10.1.0.2. 0Copyright (c) 1996, 2004 Oracle Corporation. All rights reserve d.http://edrsr9p1.us.oracle.com:5500/em/console/aboutApplicationStarting 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/ sysman/log

$ emctl stop dbconsoleTZ set to US/PacificOracle Enterprise Manager 10g Database Control Release 10.1.0.2. 0Copyright (c) 1996, 2004 Oracle Corporation. All rights reserve d.http://edrsr9p1.us.oracle.com:5500/em/console/aboutApplicationStopping Oracle Enterprise Manager 10g Database Control ...... Stopped.


Accessing Database Control


SYSOPER and SYSDBA


Database Home Page


Changing the Listener Status


Startup and Shutdown

Click Advanced Options to select startup options

and shutdown mode


Starting Up a DatabaseNOMOUNT

OPEN

MOUNT

NOMOUNT

SHUTDOWN

Instance started

STARTUP


Starting Up a DatabaseMOUNT

OPEN

MOUNT

NOMOUNT

SHUTDOWN

Control file opened for this instance

Instance started

STARTUP

SHUTDOWN


Starting Up a DatabaseOPEN

OPEN

MOUNT

NOMOUNT

SHUTDOWN

All files opened as described by the control file for this instance

Control file opened for this instance

Instance started

STARTUP

SHUTDOWN


Shutting Down the Database

Shutdown mode:• A = ABORT• I = IMMEDIATE• T = TRANSACTIONAL• N = NORMAL

A

No

No

No

No

T

No

No

Yes

Yes

I

No

No

No

Yes

Shutdown Mode

Allow new connections

Wait until current sessions end

Wait until current transactions end

Force a checkpoint and close files

N

No

Yes

Yes

Yes


SHUTDOWN Options

On the way down:• Database

buffer cache written tothe data files

• Uncommitted changes rolledback

• Resources released

On the way up:• No

instance recovery

During

SHUTDOWN NORMAL

orSHUTDOWN

TRANSACTIONALor

SHUTDOWN IMMEDIATE

Consistent database(clean database)


SHUTDOWN Options

On the way down:• Modified

buffersare not written to the data files

• Uncommitted changes are not rolled back

On the way up:• Online redo

log files used to reapply changes

• Undo segments used to roll back uncommitted changes

• Resources released

During

SHUTDOWN ABORTor

Instance Failureor

STARTUP FORCE

Inconsistent database(dirty database)


spfiledb01.ora

Initialization Parameter Files


Viewing Initialization Parameters


Viewing the Alert Log


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


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

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