Tài liệu Oracle Unleashed- P21 doc

Personal Oracle7 is bundled with a set of Oracle database administration tools or the Personal Oracle7 Navigator for Windows 95, Oracle backup and recovery tools, Oracle utilities, Oracl

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● 56

❍ Personal Oracle7

■ Overview of Personal Oracle7

■ Personal Oracle7 Components

■ Database Password Manager for Windows

■ The User Manager

■ The Object Manager

■ The Session Manager

■ The Database Expander

■ Personal Oracle7 Navigator for Windows 95

■ Database Backup and Recovery Tools

■ The Backup Manager

■ The Recovery Manager

■ The Export, Import, and SQL*Loader Utilities

■ The Database Exporter and Database Importer

■ SQL*Loader

■ SQL Products

■ Middleware

■ Oracle Objects for OLE

■ Oracle7 ODBC Driver

■ Personal Oracle7 Database Options and Networking Software

■ Distributed Options

■ The Symmetric Replication Option

■ SQL*Net and Network Manager

■ When To Use Personal Oracle7

Personal Oracle7 for Windows 95

● Personal Oracle7 for Microsoft Windows

● Personal Oracle7 for OS/2

● Personal Oracle7 for Power Macintosh

Currently, you can download the 90-day free trial software from the Oracle World Wide Web server at http://www.oracle.com Personal Oracle7 is bundled with a set of Oracle database administration tools or the Personal Oracle7 Navigator for Windows 95, Oracle backup and recovery tools, Oracle utilities, Oracle Objects for OLE, Oracle7 ODBC driver, and Oracle online documentation

This chapter presents the overview of Personal Oracle7, the system requirements for installing Personal Oracle7, and how it differs from other Oracle packages It also introduces you to the major components of Personal Oracle7

Although Personal Oracle7 shares many features with the Oracle7 Server, which functions as a database server and supports a large number of clients, Personal Oracle7 is designed for a single user or developer This chapter explains when using Personal Oracle7 is appropriate and how Personal Oracle7 meets your business and technical needs

Overview of Personal Oracle7

Oracle7 runs on many operating systems and it scales well on a wide range of hardware platforms, including personal computers, Macintosh, workstations, midrange computers, and mainframe computers Personal Oracle7 is a single-user database, and it is designed for users who want to use or to develop Oracle7 database on Windows 95, Microsoft Windows, OS/2, or Power Macintosh It supports up to 25 concurrent database sessions, but it is not designed to be a database server The scalability of Oracle7 enables developers to port their applications developed on Personal Oracle7 to other operating systems on different hardware platforms

Personal Oracle7 Components

Personal Oracle7 includes the Oracle7 database, Oracle database tools, Oracle utilities, SQL products, Oracle Objects for OLE, Oracle7 ODBC driver, Oracle networking software, SQL*Net version 1 and version 2, and online documentation Personal Oracle7 for Windows 95 includes the Personal Oracle7 Navigator, which replaces a portion of the Oracle database tools, such as the Database Manager The current major components of Personal

Oracle7 are summarized in Table 56.1 For additional information about the Personal Oracle7 components, please refer to your Personal Oracle7 Installation and User's Guide

Table 56.1 Personal Oracle7 Components.

Components Descriptions Personal Oracle7 for Windows 95 Personal Oracle 7 for MS Windows Personal Oracle 7 for OS/2 Personal Oracle 7 for Power Macintosh

queries and updates, read- only

User Manager

Create and manage user accounts,

roles, and privileges

View and kill

Database

Expander

Expand the size

Password

Manager

Change the database password

Backup and Recovery Tools

to an

export file

Import Import data into

database from an export file

SQL*Loader Load data from

into your Oracle7 database

SQL Products

PL/SQL

Oracle procedural language

extension to SQL

SQL*DBA

Administer the database, including

areas that cannot

be managed with the

database administration tools

SQL*Plus

A command language interface

enables you to execute SQL and

PL/SQL commands and scripts

Networking Software

SQL*Net

Oracle network interface to enable

clients to connect to and access the

to work with Oracle7 database

System Requirements

Before you install Personal Oracle7, make sure that your system meets the following minimum hardware and software requirements Refer to your Personal Oracle7 Installation and User's Guide for additional information on

how to determine your system requirements This section also gives you several tips on installing and using Personal Oracle7

Hardware Requirements

This section describes the minimum hardware requirements for installing and running Personal Oracle7

● A 486-based (or higher) IBM, COMPAQ, 100-percent compatible PC, or a Power Macintosh computer

● A minimum of 16MB of RAM; 32MB is recommended

The ORA-9368 error message is usually caused by not having enough memory to run the Personal Oracle7 database

● A minimum of 50MB of free disk space Certain Personal Oracle7 installation options might require additional free disk space

● Access to a CD-ROM drive (local or network) from your PC A CD-ROM drive is not required if you download the software from the Web site

● A compatible network interface card (NIC) for Oracle products to communicate with each other over a network through SQL*Net If you are not planning to connect to Oracle products over a network, you may not need the NIC

Software Requirements

This section describes the minimum software requirements for installing and running Personal Oracle7

● Personal Oracle7 for Windows 95 requires Microsoft Windows 95

Personal Oracle7 for Windows requires Microsoft Windows 3.1 or Windows for Workgroups 3.11

Personal Oracle7 for OS/2 requires IBM OS/2 version 2.1 or IBM OS/2 Warp version 3

Personal Oracle7 for Power Macintosh requires Macintosh operating system version 7.5 or greater

Personal Oracle7 for Windows is not designed to run under OS/2 or Windows NT Therefore, running Personal Oracle7 for Windows under a WinOS/2 session or Windows 3.1 emulation of Windows NT is not supported

● Personal Oracle7 for Windows requires Microsoft Win32s, which is included on the Personal Oracle7 for Windows CD-ROM (both editions) Win32s is Microsoft's 32-bit extension to Microsoft Windows 3.1 Because Personal Oracle7 is a 32-bit database, you need to install Win32s first and make sure it is working properly before you install Personal Oracle7 for Windows

If you experience the stack overflow error, the follow steps might help you resolve it:

You might need to change STACKS=9,256

to STACKS=36,256 in the CONFIG.SYS

file

Certain display drivers, such as

STBVISN.DRV, might not be compatible

with Win32s and might cause stack

overflow errors Replacing the display

driver might solve the problem

● Network transport protocol software (Named Pipes, SPX, TCP/IP, or AppleTalk), which is required to be supported by Oracle SQL*Net version 1 or version 2 if you are planning to connect to Oracle products through SQL*Net

Database Administration Tools

This section introduces you to the database administration tools of the Personal Oracle7 These graphical database tools enable you to perform the common database administration tasks and to maintain and customize your

database For step-by-step instructions on how to use the database administration tools, please refer to your Personal Oracle7 Installation and User's Guide and the Oracle Database Tools User's Guide

Database Manager

The Database Manager enables you to start or shut down the database, check the status of the database, customize the database configurations, and modify aliases for the database Figure 56.1 shows the Oracle Database Manager dialog box

Figure 56.1 The Oracle Database Manager dialog box.

Before you select any dialog element in the Database Manager, you want to make sure the Database dialog box contains a correct database name and the Configuration dialog box shows the appropriate configuration name for the database you have selected The database name for the local Personal Oracle7 database is 2: (the number two followed by a colon) You can assign a database alias for it You can also select a remote database name

A configuration is equivalent to an initialization parameter file Therefore, if you modify any initialization parameter using the Configure dialog box, then you need to make the same change in your initialization parameter file if you are going to use SQL*DBA to start or shut down your database When you use the Configure dialog box to customize and set the initialization parameters, the changes are saved in VS10.INI The Database Manager uses

Database Password Manager for Windows

The Database Password Manager enables you to change the database password to protect your database The database password is the same as the password for INTERNAL The default database password is ORACLE in Personal Oracle7 for Windows The initial database password in Personal Oracle7 for OS/2 is assigned by you during the installation

Shut down the database before you use the Password Manager to change the database password Otherwise, you will not be able to shut down the database from the Database Manager because the database will not accept any password If your database is started up with an initialization parameter REMOTE_LOGIN_PASSWORDFILE=SHARED in the configuration, you can change the database password while the database is up

In Personal Oracle7 for Windows, if you add DBA_AUTHORIZATION=BYPASS in \WINDOWS\ORACLE.INI and restart Windows, when you start the database in the Database Manager, it will not prompt you to input the database password Similarly, for Personal Oracle7 for Windows 95, you can add DBA_AUTHORIZATION=PASS in the Windows 95 Registry

The User Manager

The User Manager enables you to create and delete user accounts and roles, grant user and role privileges, and change a user's password

When you create a new user using the User Manager, the default tablespace for the new user is USER_DATA and the temporary tablespace is TEMPORARY_DATA If any one of the tablespaces does not exist, you will receive a warning dialog box If you select OK to continue, the User Manager will use the SYSTEM tablespace The workaround is to use SQL*DBA to create new users by specifying a default tablespace and a temporary tablespace in the CREATE USER statement for each new user

The Object Manager

The Object Manager enables you to create and modify database objects, including tables, indexes, synonyms, database links, views, and snapshots You can also use the Object Manager to grant object privileges to users or roles

The Session Manager

The Session Manager enables you to view all the sessions, the session IDs, serial number, and the status of each connected session The Session Manager also enables you to disconnect or terminate sessions

The Database Expander

When the database is 75 percent full, you should expand the database The Database Expander enables you to view the current free and used space in each tablespace After you select a tablespace that you need to expand, you can input the size (in KB) you want to add and click the Expand button to expand the tablespace In Personal Oracle7 for Windows, the Database Expander adds a new data file in the \ORAWIN\BIN directory However, the original data files are stored in the \ORAWIN\DBS directory For the Database Expander to add new data files in the \ORAWIN\DBS directory, you can change the working directory of the Database Expander to \ORAWIN

\DBS in the Properties option of the Database Expander icon

Personal Oracle7 Navigator for Windows 95

The Personal Oracle7 Navigator for Window 95 enables you to access all of your projects, database connections, and database objects It functions like the database administration tools and enables you to create, modify, and

delete database objects You can create a new project and administer the database using the Oracle7 Navigator menu bar or the Oracle7 Navigator toolbar Figure 56.2 shows the Personal Oracle7 Navigator dialog box

Figure 56.2 The Personal Oracle7 Navigator dialog box.

Database Backup and Recovery Tools

This section gives an overview of the Backup Manager and the Recovery Manager for Windows For instructions on using these tools, refer to your Personal Oracle7 Installation and User's Guide and the Oracle Database

Tools User's Guide

The Backup Manager

The Backup Manager enables you to do an online (hot) backup of a selected tablespace and the control file and an offline (cold) backup of the entire database to a tape or selected directory The Online - Selected Tablespace option is available only when the database is running and in ARCHIVELOG mode

The Recovery Manager

After a database failure, you can use the Recovery Manager to recover your database The Recovery Manager enables you to do Automatic Recovery, Restore from full database backup, Restore data file, and then do recovery,

or Restore control file, and then do recovery

The Export, Import, and SQL*Loader Utilities

This section describes the characteristics of the Database Exporter, Database Importer, and SQL*Loader utilities It also provides several tips for using these utilities

The Database Exporter and Database Importer

When you want to move data between Oracle databases, you can use the Database Exporter to export tables, users, or the full database to a transportable file Then, you can use the Database Importer to read data from the transportable file back into an Oracle database This transportable file can be used as a database backup These export and import utilities are available for various platforms That means the transportable file generated by the Database Exporter from the Windows environment could be used to import the data into an Oracle7 database in another platform

SQL*Loader

The SQL*Loader utility enables you to load data from external files in ASCII format into Oracle database tables Before using the SQL*Loader utility, you might need to create a SQL*Loader control file, which is used by the SQL*Loader utility to interpret the data file

SQL Products

Personal Oracle7 includes the following SQL products:

● PL/SQL Procedural Language/Structured Query Language is the procedural language extension to SQL

● SQL*DBA The SQL*DBA utility enables you to execute SQL scripts and perform database administration tasks Certain database administration tasks can only be performed using the SQL*DBA utility For example,

to create a new database, you can use the SQL*DBA utility Currently, the GUI implementation of SQL*DBA does not support the monitor functions, such as MONITOR SESSION

If you receive the ORA-01991 error while you are creating a new database using the SQL*DBA utility, you might need to change the setting of the REMOTE_LOGIN_PASSWORDFILE parameter in the configuration

to SHARED Its default setting is EXCLUSIVE

● SQL*Plus SQL*Plus is a command language interface that enables you to run SQL and PL/SQL scripts and commands

The SQL products are discussed in detail in Chapters 5 to 7

Middleware

This section describes the additional components that are included with Personal Oracle7: Oracle Objects for OLE and Oracle7 ODBC driver

Oracle Objects for OLE

Oracle Objects for OLE is a set of programmable objects (dynaset objects) that enables you to develop C++, Microsoft Visual Basic, and OLE 2 scripting-enabled applications to access the data of an Oracle database and the advanced Oracle7 features It supports Borland C++ 4.0 or higher, Microsoft Visual C++ 1.5 or higher, Microsoft Visual Basic 3.0 or higher, Visual Basic for Applications, and any other Windows-based application that supports OLE 2 scripting Part VIII of this book gives an overview of Oracle Objects for OLE and discusses the OLE Server and Data Control

Oracle7 ODBC Driver

The Oracle7 ODBC driver is a program that can function as an interpreter between the ODBC interface and the native interface to an Oracle7 database It enables the direct access between the ODBC-compliant database applications and the Oracle7 database For example, the Oracle7 ODBC driver enables you to use Microsoft Access to retrieve and modify data from your Oracle7 database

Before you use the Oracle7 ODBC driver, you might need to use the ODBC Administrator to configure it properly The following steps illustrate how to configure the current Oracle7 ODBC driver:

1 Select the ODBC Administrator icon

2 In the Data Source dialog box, select the Add button

3 In the Add Data Source dialog box, select the appropriate Oracle database version from the Installed ODBC Driver list, and then select OK

4 The Oracle7 ODBC Setup dialog box appears on the screen; enter the required information Figure 56.3 shows the Oracle7 ODBC Setup dialog box

Figure 56.3 The Oracle7 ODBC Setup dialog box.

When you access the local Personal Oracle7 database, you can use 2: as the SQL*Net connect string

Personal Oracle7 Database Options and Networking Software

This section describes the database options that are available in Personal Oracle7 It includes the distributed options and Symmetric Replication option

Distributed Options

The distributed options enable you to develop and deploy distributed databases Personal Oracle7 enables you to create database links to access remote databases, create distributed queries to retrieve information from remote databases, do distributed updates to modify data in remote databases, and create read-only table snapshots to replicate data from remote databases

The Symmetric Replication Option

The Symmetric Replication option supports "update anywhere," which means all copies of data at different sites can be updated and the updates are applied to all other copies The update can be made at the data level or schema

level The Oracle7 Symmetric Replication option also supports both conflict avoidance and conflict detection and resolution For more information on symmetric replication, refer to the Oracle7 Server Distributed Systems,

Volume II: Replicated Data

SQL*Net and Network Manager

SQL*Net is the Oracle network interface that enables the clients to connect to the Oracle database servers and enable the connectivity among the Oracle database servers in a distributed environment The Network Manager is a GUI tool that enables you to create and modify your SQL*Net V2 configurations Chapter 53 contains additional information about SQL*Net

When To Use Personal Oracle7

Personal Oracle7 is preconfigured and easy to install, maintain, use, and manage with a set of GUI database tools If you are an application developer and you develop applications for an Oracle7 database using Windows based, Windows-based, or OS/2-based tools, you can install and run Personal Oracle7 on the same system Personal Oracle7 is cost-effective because it delivers all the power and functionality of Oracle7 at a lower cost Personal Oracle7 is appropriate for mobile, on-site, or remote users who require a local database on the same machine

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57

Workgroup 2000

Oracle announced the Workgroup/2000 suite of integrated client/server tools in January, 1995 The available product list

in the Oracle Workgroup/2000 suite is growing Information about the Oracle Workgroup/2000 suite is available on the Oracle World Wide Web server Currently, you can download the 90-day free trial software from the Oracle World Wide Web server at http://www.oracle.com

This chapter gives an overview of what is included in the Oracle Workgroup/2000 suite, the system requirements for Oracle Workgroup Server, and the differences among Oracle Workgroup Server and other Oracle packages This chapter concentrates on the Oracle7 Workgroup Server, which is part of the Oracle Workgroup/2000 suite It also discusses what tools and utilities are included and their major components This chapter explains when it is appropriate to use the Oracle Workgroup Server and how it meets your business and technical needs

Overview of the Oracle Workgroup/2000 Suite

The Oracle Workgroup/2000 suite is targeted for the workgroup client/server environment in which the users and

developers have easy access and control of their database with integrated graphical tools and utilities The following products are part of the Oracle Workgroup/2000 suite:

Personal Oracle7 is presented in Chapter 56, "Personal Oracle7," Oracle Objects for OLE is discussed in detail in Part IX

of this book, and Part VIII gives an in-depth look at Oracle Power Objects This section gives an overview of the

Oracle7 Workgroup Server

How Oracle7 Workgroup Server Differs From Other Oracle Packages

The Oracle7 server supports large-scale and distributed database environments, whereas the Oracle7 Workgroup Server

is designed for small to medium-sized workgroups that require powerful client/server solutions with the advantages of easy installation, ease-of-use, and simplified database administration and management The Oracle7 Workgroup Server

is a full-functioning, multiuser Oracle7 server It is designed to meet the needs of workgroups to access data within a personal computer local area network environment

Certain Oracle7 features are currently not available in the Oracle7 Workgroup Server version 7.1, such as the distributed options, data replication, two-phase commit, parallel options, symmetric data replication, and the parallel server option Some of them are not implemented in the Oracle7 Workgroup Server because most of the independent workgroups do not require real-time access to the data from their distributed databases

The Oracle7 Workgroup Server is based on the Oracle7 architecture It is completely scaleable because it shares the same Oracle7 code base as the Oracle7 Server that runs on over 80 different hardware and operating system platforms, from desktop to mainframe Therefore, when you scale your Oracle7 database and applications from one platform to another, it is transparent to the users

The Oracle7 Workgroup Server is bundled with a set of graphical database administration tools to enable you to perform the common database administration tasks in a graphical user interface environment An authorized administrator can easily manage and maintain the database with these tools without typing in any SQL command

The Oracle7 Workgroup Server also comes with an initial or seed database that has been preconfigured for the

workgroup environment The initial database contains four tablespaces: SYSTEM, USER_DATA,

TEMPORARY_DATA, and ROLLBACK_DATA When you use the User Manager tool to create a new database user account, its default tablespace will be USER_DATA and its temporary tablespace will be TEMPORARY_DATA The initial database defaults to NOARCHIVELOG mode You can change it to ARCHIVELOG mode to archive redo log files

The Oracle7 Workgroup Server is tightly integrated with the operating system (OS) to produce the optimal performance The Oracle7 Workgroup Server supports symmetric multiprocessing (SMP), asynchronous I/O, and the direct file system support on most of the Desktop and Intel UNIX platforms It also supports OS registry on Windows NT and OS threads

on the Windows NT, NetWare, and OS/2 platforms Table 57.1 summarizes the current operating system integration support

Table 57.1 Operating system integration support.

Oracle7 Workgroup Server version 7.1 for

Windows NT NetWare OS/2 UnixWare

Symmetric multiprocessing Yes N/A Yes Yes

OS threads Yes Yes Yes N/A

Direct file system support Yes Yes Yes Yes

Integrated OS authentication Yes Yes Yes Yes

Native graphical administration tools Yes N/A Yes Yes

OS registry support Yes N/A N/A

N/A

Oracle7 Workgroup Server Components

The Oracle7 Workgroup Server includes the Oracle7 database, Oracle database tools, Oracle utilities, SQL products, SQL*Net, Oracle Objects for OLE, Oracle7 ODBC driver, and online documentation These Oracle7 Workgroup Server components can be categorized into the server or client software The primary components of the Oracle7 Workgroup

Server are summarized in Table 57.2 For a complete list of all components and their detailed description, refer to your

Oracle7 Workgroup Server User's Guide

Table 57.2 Oracle7 Workgroup Server Components.

Oracle7 Workgroup Server version 7.1 for

Components Windows NT NetWare OS/2 SCO, Solaris x86, UnixWare

Server Software

Oracle7 Workgroup Server Yes Yes Yes Yes

SQL*Net V1 and/or V2

Oracle Names Server Yes Yes Yes Yes

Oracle Network Manager N/A N/A N/A Yes

Oracle Database Tools

Database Password Manager Yes N/A N/A Yes

Start Oracle Networks N/A N/A N/A Yes

Stop Oracle Networks N/A N/A N/A Yes

Maintenance Manager N/A N/A N/A Yes

Oracle Book Online Documentation Yes N/A Yes Yes

Client Software for Windows

SQL*Net V1 and/or V2

Oracle Network Manager Yes Yes Yes Yes

Oracle Database Tools

Oracle Objects for OLE Yes Yes Yes Yes

Oracle7 ODBC Driver Yes Yes Yes Yes

Oracle Book Online Documentation Yes Yes Yes Yes

Client Software for OS/2

Oracle Database Tools N/A N/A Yes N/A

SQL*Net V1 and/or V2

Client Software for Intel UNIX N/A N/A N/A Yes

SQL*Net, Oracle Database

Tools, and Oracle Book Online

Documentation

Client Software for DOS

SQL*Net Named Pipes V1 Yes N/A N/A

N/A

System Requirements

This section specifies the minimum hardware and software requirements to install the Oracle7 Workgroup Server The hardware and software requirements depend on many factors, such as the size of the Oracle database System Global Area (SGA), the number of current client connections, and the applications installed on the system You need to refer to

your Oracle7 Workgroup Server User's Guide for detailed information on how to determine your system requirements

This section also provides several tips on installing and using the Oracle7 Workgroup Server

Server Hardware Requirements

This section describes the minimum server hardware requirements for installing and running the Oracle7 Workgroup Server

primarily on the size of the Oracle database SGA, the number of concurrent user connections, the type of client/server transactions, and the applications installed on the server

During the installation of the Oracle7 Workgroup Server for Intel UNIX, the relinking process requires swap space, which should be at least twice the size of the total physical memory installed in your server For example, if you have 32 MB of RAM in your server, the swap space should be at least 64 MB

Before you install the Oracle7 Workgroup Server for NetWare, you might want to make sure the NetWare operating system recognizes all the memory that you install on the server You can issue the MEMORY command at the server console prompt to find out how much memory is recognized by NetWare

If the installation of the Oracle7 Workgroup Server for Intel UNIX fails because of lack of disk space, you might need to remove any partially installed products from the Oracle home directory If you install the Oracle7 Workgroup Server from a temporary stage home directory, you might need to delete that directory and rebuild it Remember that the Oracle Installer does not recognize any symbolic links in the Oracle home directory when the Oracle Installer calculates free disk space If you are sure that you have enough free disk space to complete the installation, you can ignore the insufficient space warning from the Oracle Installer

Server Operating System Requirements

This section describes the minimum server operating system requirements for installing and running the Oracle7

Workgroup Server

2.4 or higher, or SCO Open Server 3.0 or higher

To avoid a possible server crash or abend problem, before you install the Oracle7 Workgroup Server for NetWare, you might need to apply the latest NetWare operating system patches from Novell You might also need to install the latest disk driver(s) (.DSK) for your disk controller and the latest LAN (.LAN) driver(s) for the network interface card(s) (NIC) on your NetWare server The "Novell Server Library NLM Updates" release notes for the

Oracle7 Workgroup Server for NetWare list the required patch files from Novell

When you are installing the Oracle7 Workgroup Server for Intel UNIX and it fails in the relinking phase, you might not have the make utility or the networking software libraries installed on your system You can verify the make utility by following one of the steps below:

UnixWare: Make sure that /usr/bin/make is

linked to /opt/oracle/bin/make

SCO: Make sure that the make utility is

installed under the /bin directory The make

utility is automatically installed with the

SCO Development System installation

Solaris x86: Make sure that the make utility

is in the /usr/ccs/bin directory

For the Oracle7 Workgroup Server for Intel UNIX, the ORACLE_HOME, ORACLE_SID, ORACLE_TERM, PATH, SHELL, and DISPLAY environment should be set properly in the profile or login file

Client System Requirements

This section describes the minimum client system requirements for installing and running the client system of the Oracle7 Workgroup Server

free disk space, and a CD-ROM drive

space, and a CD-ROM drive

disk space

● Intel UNIX: UnixWare 2.0 or higher, Solaris x86 2.4 or higher, or SCO Open Desktop 3.0 or higher, minimum

of 4 MB of RAM; 8 MB is recommended, minimum of 100 MB of free disk space, and a CD-ROM drive

Oracle7 Workgroup Server Tools and Utilities

The Oracle7 Workgroup Server tools and utilities are listed in Table 57.2 Most of the Oracle database user tools are discussed in Chapter 56 Some of them, such as Start Oracle, Stop Oracle, and the Maintenance Manager, are specific to the Intel UNIX servers They are introduced in the following sections This section also introduces the Network Manager

for Windows For a detailed description, refer to your Oracle7 Workgroup Server User's Guide and the Oracle Database

Tools User's Guide

In the Oracle7 Workgroup Server for the Intel UNIX, most of the database administration tools can be executed from the Oracle Admin toolbar You can bring up the Oracle Admin toolbar from an xterm window by entering the following command at the operating system prompt:

$ otoolbar

The Oracle Admin toolbar contains the icons for most of the database tools, such as the Database Manager, Database Expander, Object Manager, User Manager, Backup Manager, and Start Oracle Networks

Start Oracle Networks for Intel UNIX

You use the Start Oracle Networks to start up the SQL*Net listener on your Oracle7 Workgroup Server to accept

SQL*Net client connections You can execute this utility by clicking the Start Oracle Networks icon from the Oracle Admin toolbar The processes start running in the background, and a minimized xterm window appears at the bottom of your screen If you want to see what processes are running, you can maximize the xterm window at the bottom of your screen The xterm window disappears when all its processes are completed

After the Oracle7 Workgroup Server installation, it is not necessary to use Start Oracle Networks to start up the

SQL*Net listener You might need to use the Start Oracle Networks utility to activate the SQL*Net listener after you install a patch, reconfigure your networks, or after a system crash

Stop Oracle Networks for Intel UNIX

The Stop Oracle Networks utility is for shutting down the SQL*Net listener After the SQL*Net listener has been shut down, the database will not receive any SQL*Net client connections You can execute this utility by clicking the Stop Oracle Networks icon from the Oracle Admin toolbar The processes start running in the background and a minimized xterm window appears at the bottom of your screen If you want to see what processes are running, you can maximize the xterm window at the bottom of your screen The xterm window disappears when all Stop Oracle Networks processes are completed It is appropriate to use the Stop Oracle Networks utility to shut down the SQL*Net listener before you reconfigure your networks and install a patch

Maintenance Manager for Intel UNIX

The Maintenance Manager is used to install or remove patches for Oracle from your Oracle7 Workgroup Server A patch may be in the form of a file (which can be downloaded from an online bulletin board), or a cartridge tape released by Oracle There is no icon for the Oracle Maintenance Manager on the Oracle Admin toolbar You can start the

Maintenance Manager from an xterm window by entering the following command at the operating system prompt:

$ mainmgr

The Update button in the Maintenance Manager is used to install patches and the Rollback button is used to remove

patches You can install a patch from a file or from a tape depending on the format and media of the patch

Network Manager for Windows

Before you start using SQL*Net Version 2, you might need to create or modify several configuration files, such as LISTENER.ORA and TNSNAMES.ORA These files are not easy to create or modify manually because they need to follow certain syntax for different network protocols The Network Manager for Windows is a graphical tool, and it enables you to create these configuration files by entering the necessary information on the screen Before the Network Manager generates the configuration files, it validates the information that you enter and warns you if it discovers any inconsistency Figure 57.1 shows the Network Manager dialog box

Figure 57.1 The Oracle Network Manager dialog box.

When To Use Oracle7 Workgroup Server

Because of the similarities among the Oracle7 Server, Oracle7 Workgroup Server, and Personal Oracle7, it is not

obvious which product meets the needs of your client/server applications This section suggests when it is appropriate to use the Oracle7 Workgroup Server and how Oracle7 Workgroup Server meets your business and technical needs

The Oracle7 Workgroup Server is appropriate in the following situations:

together in a local area network using one or more of the following network protocols: Named Pipes, SPX/IPX, TCP/IP, IBM's APPC, and NETBIOS If you want the power and functionality of the Oracle7 database, it is appropriate to use the Oracle7 Workgroup Server because it is designed and optimized in the workgroup environment, and it supports the common network protocol for the desktop and Intel UNIX platforms

multiuser Oracle7 database, and it integrates with a set of client/server tools to the desktop platform Combining with the preconfigured initial database, the Oracle7 Workgroup Server is optimized for developing and

deploying decision support and online transaction processing (OLTP) applications in the workgroup environment

scalability, and openness for an independent workgroup in developing and deploying applications that do not require the distributed options It offers flexibility to a workgroup by making the Oracle7 Workgroup Server available on all the major desktop and Intel UNIX platforms The advantage of scalability enables you to port your Oracle applications and data to other systems and platforms transparently It meets the needs of a workgroup that needs data to be migrated between Oracle databases Openness means it is compliant with and supports the industry standards, such as ODBC and OLE

tools to simplify the database administration tasks For example, You can start a database by clicking a single Startup button in the Database Manager dialog box This advantage meets the needs of an independent workgroup that does not have a database administrator with extensive database administration experience With the Oracle7 Workgroup Server, a database administrator can use the User Manager to create a new database user account or use the Database Expander to expand the database without writing a single SQL statement

57.1 shows the operating system integration support Therefore, no matter which platform you select, the Oracle7 Workgroup Server is designed to take advantage of the operating system architecture By providing the client tools, the Oracle Workgroup Server is also appropriate for a workgroup with client machines on various platforms, including NT, Windows, OS/2, DOS, and Intel UNIX

Server provide ease-of-use and therefore reduce the training time It also increases the productivity of the users

by making the look and feel of the graphical user interface tools and utilities uniform across the NT, OS/2, Windows, and Intel UNIX clients Therefore, the Oracle7 Workgroup Server is appropriate for users who do not have extensive database tools and utilities training and who are under time constraints to complete a workgroup project that is developed and deployed across all major desktop and Intel UNIX platforms

Summary

This chapter discussed the Oracle7 Workgroup Server, the major server and client components of the Oracle7

Workgroup Server, and the system requirements We have compared the Oracle7 Workgroup Server with other Oracle packages and explained when it is appropriate to use the Oracle7 Workgroup Server The Oracle7 Server for the desktop platform is discussed in the next chapter

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This chapter presents the overview of Oracle7 Server and its major components The Oracle7 Server is different from the Personal Oracle7 and the Oracle7 Workgroup Server This chapter compares these three Oracle packages and discusses how Oracle7 Server differs from the other two Oracle packages Each of the Oracle packages is tailored to meet specific client/server application development and deployment needs This chapter explains when it is appropriate to use the Oracle7 Server and how it meets your business and technical needs

Overview of the Oracle7 Server

an overview of the Oracle7 Server and how it differs from other Oracle packages It also discusses what components are included in the Oracle7 Server

Oracle7 Server Components

The Oracle7 Server includes the multiuser Oracle7 database with the distributed options, Oracle database utilities, graphical tools, SQL products, SQL*Net, Secure Network Services, Oracle Objects for OLE, Oracle7 ODBC driver, and online documentation The Oracle7 Server components are categorized into the server or client software Table 58.1 summarizes the primary components of server software of the Oracle7 Server For a complete list of all components and

the detailed description, refer to your Oracle7 Server User's Guide

Table 58.1 Oracle7 Server components.

Oracle7 Server version 7.2 for

Components Windows NT NetWare OS/2

Server Software

Server Options (purchased separately)

(for NetWare 4.1)

Symmetric Replication Option or Yes Yes Yes

Advanced Replication Option (for NetWare 4.1)

Export Yes Yes Yes

SQL*Net V1 and/or V2

Oracle Performance Monitor Yes N/A N/A

Oracle Database Tools

Database Password Manager Yes Yes N/A