Oracle® Database Platform Guide 10g Release 2 (10.2) for Microsoft Windows (x64) Part Number B15688-03 |
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Oracle Database for Windows includes various tools to perform database functions. This chapter describes preferred tools to perform common database administration tasks and explains how tools can be started.
Unless otherwise noted, features described in this guide are common to Oracle Database Enterprise Edition, Oracle Database Standard Edition, and Oracle Database Personal Edition.
This chapter contains these topics:
Database tools is a collective term for tools, utilities, and assistants that you can use to perform database administration tasks. Some database tools perform similar tasks, though no one database tool performs all database administration tasks. The following sections indicate which database tools can be used on particular operating systems and preferred tools to use for common database administration tasks.
Note:
Oracle Server Manager is no longer shipped as of Oracle9i release 2 (9.2). All Server Manager text and examples have been replaced with SQL*Plus equivalents.Additionally, connecting to the database as CONNECT INTERNAL
is no longer supported.
SQL> CONNECT INTERNAL/password@tnsalias
has been replaced by:
SQL> CONNECT SYS/password@tnsalias AS SYSDBA
Almost all database tools are available on all supported versions of Windows. The following are not supported on Oracle Database for 64-bit Windows:
Pro*COBOL
Oracle Portal
Oracle Migration Workbench
Oracle Objects for OLE
Oracle Open Gateways
Oracle Transparent Gateways
SQL*Plus Worksheet
Database Upgrade Assistant
See Also:
Oracle Database Release Notes for Microsoft Windows (x64) for a complete list of unsupported features in Oracle Database for 64-bit WindowsOracle Enterprise Manager and its optional management packs have additional integrated tools to assist in managing databases. See Oracle Enterprise Manager Concepts for more information.
Table 2-1 lists various database tools you can use to perform common database administration tasks. Oracle recommends you use tools listed in the "Preferred Database Tool" column of the table. After choosing a tool to perform a task, go to Table 2-2, for instructions on how to start the tool.
Note:
TheVOLSIZE
parameter for Export and Import utilities is not supported on Windows. If you attempt to use the utilities with the VOLSIZE
parameter, then error LRM-00101 occurs. For example:
D:\> exp system/manager full=y volsize=100m; LRM-00101: unknown parameter name 'volsize' EXP-00019: failed to process parameters, type 'EXP HELP=Y' for help EXP-00000: Export terminated unsuccessfully
Table 2-1 Preferred Database Tools
Administration Task | Preferred Tool | Other Tools |
---|---|---|
Create a database |
Database Configuration Assistant |
None |
Delete database services |
Database Configuration Assistant |
ORADIM |
Start a database |
Oracle Enterprise Manager Console |
SQL*Plus |
Shut down a database |
Oracle Enterprise Manager Console |
Control Panel SQL*Plus |
Change database passwords |
ORAPWD |
ORADIM |
Migrate database users to a directory |
User Migration Utility |
None |
Migrate a database |
Upgrade Information Tool |
None |
Upgrade a database |
Run provided scripts in SQL*Plus |
None |
Export data |
Data Pump Export (EXPDP) |
Export (EXP) |
Import data |
Data Pump Import (IMPDP) |
Import (IMP) |
Load data |
Oracle Enterprise Manager Load Wizard |
SQL*Loader (SQLLDR) |
Back up database |
Oracle Enterprise Manager Backup Wizard |
Recovery Manager (RMAN) OCOPY |
Recover database |
Oracle Enterprise Manager Recovery Wizard |
Recovery Manager (RMAN) OCOPY |
Authenticate database administrators and users |
Oracle Enterprise Manager Console |
SQL*Plus Windows operating system Oracle Administration Assistant for Windows |
Store encrypted and decrypted Oracle Wallet (Oracle Advanced Security and Oracle PKI integration) |
Oracle Wallet Manager |
None |
Grant database roles |
Oracle Enterprise Manager Console |
Local Users and Groups User Manager SQL*Plus |
Create database objects |
Oracle Enterprise Manager Console |
SQL*Plus |
The following points refer to tools listed in Table 2-1, "Preferred Database Tools":
ORADIM can only set a password when none was previously set. If a password has been previously set, then ORADIM can change it only by deleting and re-creating Oracle Database services.
User Migration Utility can migrate local or external users to enterprise users. For more information, see "Using the User Migration Utility" in Oracle Database Advanced Security Administrator's Guide.
Data Pump Export and Data Pump Import are preferred for Oracle Database 10g Release 1 (10.1) and later data; Export and Import are preferred for earlier data.
If you back up files while you are shutting down the database, then your backup will be invalid. You cannot use an invalid backup to restore files at a later date.
Oracle Database for 64-bit Windows supports enterprise users and roles stored in Oracle Internet Directory, but administration tools must be run from a 32-bit computer.
You cannot use earlier versions of Oracle Wallet Manager to manage Oracle Database 10g Release 1 (10.1) or later wallets that contain password-based credentials for authentication to Oracle Internet Directory. These credentials are placed in the wallet when an Oracle Database server is registered in Oracle Internet Directory.
The database wallet that Database Configuration Assistant automatically generates during database registration can only be used with an Oracle Database 10g Release 1 (10.1) or later server. You cannot use this database wallet for earlier versions of the database, nor can you use it for Oracle Internet Directory Release 9.0.4 or earlier.
For guidelines on creating database objects, see Oracle Database Administrator's Guide.
Oracle Enterprise Manager Grid Control can manage a 64-bit Windows database from a remote Linux or Windows 32-bit computer.
Oracle Enterprise Manager Console is not supported in Oracle Database for 64-bit Windows.
This section describes how to start each of the database tools in the following categories:
If you have multiple Oracle homes on your computer from previous releases, then see Appendix B, "Optimal Flexible Architecture", in Oracle Database Installation Guide for Microsoft Windows (x64) for a description of differences between Oracle homes in different releases.
Beginning in Oracle8i release 8.1.3, each Oracle home, including the first Oracle home you create on your computer, has a unique HOME_NAME. To start Oracle Administration Assistant for Windows from any Oracle home, choose Start >
Programs >
Oracle - HOME_NAME >
Configuration and Migration Tools >
Administration Assistant for Windows.
Table 2-2 describes how to start assistants and other tools from the Start Menu. It also tells where to go for further information on using these products.
Note:
When you use an assistant, you must have read and write access to the directory where database files will be moved or created. To create an Oracle Database, you must have an administrative privilege. If you run Database Configuration Assistant from an account that is not part of the Administrators group, then the tool exits without completing the operation.Note:
All Start Menu paths begin with choose Start > Programs > Oracle - HOME_NAME >.Table 2-2 Starting Database Tools from the Start Menu
Tool | Start Menu Path | More Information |
---|---|---|
Configuration and Migration Tools |
Chapter 8, "Authenticating Database Users with Windows" |
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Configuration and Migration Tools |
"Creating a Database on Windows Using Database Configuration Assistant" |
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Enterprise Manager Console |
Oracle Enterprise Manager Console is available from the Start Menu only with Oracle Database Client. |
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Configuration and Migration Tools |
Oracle Database Globalization Support Guide |
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Configuration and Migration Tools |
Microsoft ODBC Administration online help |
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Configuration and Migration Tools |
Oracle Database Net Services Administrator's Guide |
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Configuration and Migration Tools |
Oracle Database Net Services Administrator's Guide |
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Integrated Management Tools |
Oracle Internet Directory Administrator's Guide |
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Configuration and Migration Tools |
To install Oracle Counters for Windows Performance Monitor, choose Advanced Installation and then the Custom installation type. |
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Application Development |
SQL*Plus User's Guide and Reference "Starting and Shutting Down a Database with SQL*Plus" |
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Integrated Management Tools |
Oracle Database Advanced Security Administrator's Guide |
Note:
After installing Oracle Database 10g Companion Products, Oracle Wallet Manager is not available from the Start menu. See Table 2-3, "Starting Database Tools from the Command Line" for instructions on starting Oracle Wallet Manager from the command line.Table 2-3 describes how to start Oracle Database tools from the command line, and where to go for further information on using these products.
Table 2-3 Starting Database Tools from the Command Line
Tool | Enter at Prompt | More Information |
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Oracle Enterprise Manager Console is installed only with Oracle Database Client |
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DBVERIFY starts and prompts you for a filename parameter. To obtain a list of parameters, enter:
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EXPDP starts and prompts you for parameters. To obtain a list of these parameters, enter:
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Oracle Database Utilities for instructions on use of Data Pump Export Oracle Database Error Messages for information on error messages |
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IMPDP starts and prompts you for parameters. To get a list of these parameters, enter:
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Oracle Database Utilities for instructions on use of Data Pump Import Oracle Database Error Messages for information on error messages |
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Database Configuration Assistant |
DBCA wizard starts in interactive mode. For silent options and other command line options enter:
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"Using DBCA" in Oracle Database 2 Day DBA |
EXP starts and prompts you for parameters. To obtain a list of these parameters, enter:
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Oracle Database Utilities for instructions on use of Export Oracle Database Error Messages for information on error messages |
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Import |
IMP starts and prompts you for parameters. To get a list of these parameters, enter:
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Oracle Database Utilities for instructions on use of Import Oracle Database Error Messages for information on error messages |
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"Modifying Oracle Counters for Windows Performance Monitor Parameters" |
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Oracle Wallet Manager |
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Chapter 10, "Storing Oracle Wallets in the Windows Registry" |
To get a list of ORADIM options, enter either of the following:
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"Using ORADIM to Administer an Oracle Database Instance" |
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Password file is hidden. Use Windows Explorer to see it in a file list. Choose View > Options > View > Show All Files |
"Creating and Populating Password Files" |
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Oracle Database Backup and Recovery Basics |
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SQL*Loader displays a Help screen with available keywords and default values. |
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User Migration Utility |
To get a list of parameters, enter:
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"Using the User Migration Utility" in Oracle Database Advanced Security Administrator's Guide |
Note:
Three special conditions apply when running Export or Import utilities on Windows. First, default values forBUFFER
and RECORDLENGTH
parameters are 4 KB and 2 KB respectively. This default RECORDLENGTH
parameter does not depend on the value of BUFSIZ
defined in the system header file. If you specify a value larger than USHRT_MAX
(64 KB), you will get a warning message. Second, the VOLSIZE
parameter is not supported. Third, to export an entire database, you must use the EXP_FULL_DATABASE
role.Table 2-4 describes how to start each Windows tool and where to go for more information on using these products.
Table 2-4 Starting Windows Tools
Tool | Start Procedure | More Information |
---|---|---|
Choose Start |
"Using Event Viewer to Monitor a Database" Your operating system documentation |
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Microsoft Management Console (MMC)Foot 1 |
Choose Start |
Your operating system documentation |
Choose Start |
"Using Oracle Counters for Windows Performance Monitor" Your operating system documentation |
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At the command prompt enter: C:\> regedt |
"Using Registry Editor to Modify Configuration Information" Chapter 14, "Configuration Parameters and the Registry" Your operating system documentation |
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Right-click the Task Bar and choose Task Manager |
"Using Task Manager to Monitor Applications and Processes" Your operating system documentation |
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Local Users and Groups |
Choose Start |
"Using Local Users and Groups to Manage Users and Groups" Your operating system documentation |
Choose Start |
Chapter 8, "Authenticating Database Users with Windows" Your operating system documentation |
Footnote 1 MMC is started whenever Oracle Administration Assistant for Windows is started.
This section describes Windows-specific information for using SQL*Loader (SQLLDR
).
This section discusses possible values for the operating system dependent file processing specifications string option (os_file_proc_clause
), referred to in "Specifying Datafile Format and Buffering" in Chapter 8, "SQL*Loader Control File Reference", in Oracle Database Utilities.
Stream record format in which each record is terminated by a record terminator. If "str terminator_string" is not specified, then the record terminator defaults to either the Windows-style record terminator (the two-character sequence carriage return, \r, followed by line feed, \n) or the UNIX-style record terminator (single-character line feed, \n). Maximum record size is 48 KB.
When processing stream format data files, SQL*Loader can usually recognize record terminators automatically, whether they are Windows-style or UNIX-style. So you usually do not need to specify which record terminator you are using.
For external table loads, however, only Windows-style record terminators are recognized automatically. If your data file contains UNIX-style record terminators, you must specify the record terminator. If you are using SQL*Loader (with external_table
option), then specify the UNIX-style record terminator by specifying "str
'\n'"
on the INFILE
line in the SQL*Loader control file. For example:
INFILE mydata.dat "str '\n'"
You can also specify the record terminator in hex, by specifying "str x'0a'"
(assuming an ASCII-based character set). For example:
INFILE mydata.dat "str x'0a'"
Note that the "0
" (zero) before the "a
" is required. If you are using SQL with an access parameter list to create the external table, then you must specify '\n'
in a RECORDS
DELIMITED
BY
clause. For example:
RECORDS DELIMITED BY '\n'
You can also use a hex string in this case. For example:
RECORDS DELIMITED BY 0x'0a'
Note that in this case, the "0" (zero) before the "x" and the "0" (zero) before the "a" are both required.
Fixed record format in which each record is exactly n
bytes long. Record terminators are not required with fixed record format. If the record includes a record terminator, then the record terminator bytes are included in the number of bytes n
.
Variable record format in which the length of each record in a character field is included at the beginning of each record in the datafile. Record terminators are not required with the variable record format. This format provides some added flexibility over the fixed record format and a performance advantage over the stream record format. You can specify a datafile that is to be interpreted as being in variable record format as follows:
INFILE "mydata.dat" "var n"
In this example, n
specifies the number of bytes in the record length field. If n
is not specified, SQL*Loader assumes a length of 5 bytes. Specifying n
larger than 40 will result in an error. Lengths are always interpreted in bytes, even if character-length semantics are in effect for the file. This is necessary because the file could contain a mix of fields, some processed with character-length semantics and others processed with byte-length semantics.
The distribution media for SQL*Loader contains case study files for control files, datafiles, and setup files in ulcase1,...ulcase11
in the following directory: Oracle_Home
\rdbms\demo.
When SQL*Loader executes, it can create a file called a bad file or reject file in which it places records that were rejected because of formatting errors or because they caused Oracle Database errors. If you have specified that a bad file is to be created, it overwrites any existing file with the same name; ensure that you do not overwrite a file you wish to retain.
When preparing SQL*Loader control files (.ctl
), you must follow certain syntax and notational conventions.
In full path descriptions, backslashes do not require escape characters or other special treatment. When embedding a single or double quotation mark inside a string delimited by double quotation marks, place a backslash escape character before the embedded quotation mark.
When specifying datatypes in the SQL*Loader control file, note that the default sizes of native datatypes shown in Table 2-5 are specific to Windows. These datatypes can be loaded with correct results only between systems where they have the same length in bytes. You cannot override these defaults in the control file. If the byte order is different between the systems, you can indicate the byte order of the data with the BYTEORDER
parameter, or you can place a byte-order mark (BOM) in the file.
Table 2-5 Default Sizes of Native Datatypes
Native Datatypes | Default Field Length |
---|---|
DOUBLE |
8 |
FLOAT |
4 |
INTEGERFoot 1 |
4 |
SMALLINT |
2 |
Footnote 1 The default listed is correct if INTEGER is specified without a size. But INTEGER(n) is also allowed. In that case, n specifies the size of the INTEGER field in bytes.
See Also:
Oracle Database Utilities for a complete list of options and instructions on using SQL*LoaderYou can use Windows tools in various ways to manage Oracle Database:
Event Viewer lets you monitor events in your system. An event is an important occurrence in the system or application (such as Oracle Database) that requires user notification. While messages for major events can appear on-screen as you work at your computer, events not requiring your immediate attention are recorded by Windows in the Event Viewer log file. You can then view this information at your convenience.
Event Viewer can be used to monitor Oracle Database events, such as:
Initialization of System Global Area for active instance
Initialization of Program Global Area (PGA) for background processes of active instance
Connection to Oracle Database using AS
SYSDBA
In addition, the operating system audit trail is logged to Event Viewer.
See Also:
Chapter 6, "Monitoring a Database on Windows" for specific instructions on accessing and using Event Viewer to monitor Oracle Database eventsMicrosoft Management Console provides a central location for network administration. Microsoft Management Console hosts applications (called snap-ins) that administrators can use to manage their networks. Oracle snap-ins enable database administrators to:
Configure Oracle Database administrators, operators, users, and roles so the Windows operating system can authenticate them
Configure OracleServiceSID
Modify registry parameters for all Oracle homes on the computer
Modify the computer hostname, username, and password for the database being monitored by Oracle Counters for Windows Performance Monitor
View and terminate an Oracle Database thread
Oracle Counters for Windows Performance Monitor is integrated into Windows Performance Monitor. This tool enables you to view performance of processors, memory, cache, threads, and processes. Performance information provided includes device usage, queue lengths, delays, throughput measurements, and internal congestion measurements. This information is provided as charts, alerts, and reports.
You can use Oracle Counters for Windows Performance Monitor to monitor key Oracle Database information, such as:
Library cache
Buffer cache
Data dictionary cache
Redo log buffer cache
Thread activity
You can use your findings to improve database performance.
See Also:
"Using Oracle Counters for Windows Performance Monitor" for specific instructions on accessing and using Oracle Counters for Windows Performance Monitor to monitor Oracle Database performanceOracle Database stores its configuration information in a structure known as the registry. You can view and modify this configuration information through Registry Editor. The registry contains configuration information for your computer and must not be accessible for editing by inexperienced users. Only experienced administrators should view and change this information.
Registry Editor displays configuration information in a format similar to Windows Explorer. In the left-hand window is a tree-like format consisting of keys (or folders). When one of these keys is highlighted, parameters and values assigned to that key are displayed in the right-hand window.
When you install products from your CD-ROM, configuration parameters are automatically entered in the registry. These parameters are read each time your Windows computer is started and whenever an Oracle Database product is started. These parameters include settings for:
Oracle home directory
Language
Company name
Oracle home subdirectories for individual products
Individual products such as SQL*Plus
Services
See Also:
Chapter 14, "Configuration Parameters and the Registry" for definitions of Oracle Database configuration parameters and specific instructions on using the registry to modify Oracle Database configuration parametersTask Manager has three tabs:
Applications tab displays what applications are running. This is useful for identifying and ending unresponsive tasks. (Oracle Database does not appear as an application because it runs as a service.)
Processes tab displays details of currently running processes and their resource usage. Columns are customizable.
Performance tab graphically displays real-time CPU and memory usage, which is useful for spotting sudden changes.
Local Users and Groups enables you to manage users and groups on Windows 2000 and Windows XP. Specifically, you can:
Create and modify local user accounts
Create and modify user profiles
Create, add, and delete local groups
Windows 2000 Resource Kit includes several diagnostic and tuning utilities.
QuickSlice provides a quick overview of what is occurring on the system, using a graphical user interface.
Distinguishes between time spent in user mode and kernel mode
Imposes low overhead on the system (unlike Performance Monitor)
Shows a continuous display, rather than just a snapshot
Opens a window with more details when you double-click a process
Process Viewer summarizes resource usage by a process.
Process Explorer provides a detailed display of resource usage by a process.
Task List displays resource usage and other details of a process when its processor identifier or process name is given as an argument. This tool also displays a list of executables and DLLs associated with a process.
See Also:
Chapter 5, "Administering a Database on Windows" for OracleServiceSID configuration tasks
Chapter 6, "Monitoring a Database on Windows" for thread management tasks
Chapter 8, "Authenticating Database Users with Windows" for authentication tasks
Chapter 14, "Configuration Parameters and the Registry" and Chapter 6, "Monitoring a Database on Windows" for Oracle Counters for Windows Performance Monitor tasks
Oracle Database Installation Guide for Microsoft Windows (x64) for components available for installation