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Oracle® Migration Workbench Release Notes
Release 10.1.0 for Microsoft Windows 98/2000/NT/XP and Linux x86
Part No. B15858-01
 

 

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Oracle® Migration Workbench

Release Notes

Release 10.1.0 for Microsoft Windows 98/2000/NT/XP and Linux x86

Part No. B15858-01

January 2005

This document contains the following topics:

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Introduction

Oracle Migration Workbench (Migration Workbench), Release 10.1.0 for Microsoft Windows 98/2000/NT/XP and Linux x86 enables you to migrate the following databases to an Oracle Database 10g, Oracle9i, or Oracle8i database:

Migration Workbench, Release 10.1.0 for Linux enables you to migrate the following databases to an Oracle Database 10g, Oracle9i, or Oracle8i database:

Purpose of this Document

This document outlines how to install Migration Workbench. For more information about Migration Workbench, see the following documentation:

Terminology

The following operating systems have been shortened in this guide to Windows, where appropriate:

  • Microsoft Windows 98

  • Microsoft Windows NT 4.0

  • Microsoft Windows 2000

  • Microsoft Windows XP

The name for the UNIX operating system, Red Hat Enterprise Linux 3, has been shortened in this guide to Linux x86, where appropriate.

What's New in Oracle Migration Workbench

This section describes new features of Migration Workbench Release 10.1.0 and provides pointers to additional information:

Migrating to Oracle using Migration Workbench for Linux

Migration Workbench enables you to migrate the following databases to an Oracle Database 10g, Oracle9i, or Oracle8i database on the Red Hat Enterprise Linux 3 (Linux) operating system:

Using the Sybase Adaptive Server jConnect 5.5 for JDBC Driver

Migration Workbench for Linux uses the jConnect 5.5 for JDBC driver to connect to Sybase Adaptive Server. For more information about downloading and using this driver, see the Oracle Migration Workbench User's Guide.

Migrating to Oracle Database 10g

Migration Workbench enables you to migrate a third-party database to Oracle Database 10g.

Mapping Data Types

Table 1 shows the new data types that Oracle Database 10g provides. Using Migration Workbench, you can map appropriate data types in the source database to these numeric data types.


Note:

Oracle recommends that you do not change the default data type mappings unless you are an experienced Oracle database administrator.

Table 1 Oracle Database 10g Data Types

Data Type Description
BINARY_FLOAT This is a 32-bit double-precision floating point number data type.
BINARY_DOUBLE This is a 64-bit single-precision floating point number data type.

For more information about data types, see the Oracle Database SQL Reference.

Table 2 shows a sample of data types that you can map to BINARY_FLOAT for each plug-in.

Table 2 Data Type Mappings for BINARY_FLOAT

Plug-in Data Type
IBM DB2/400 V4R3 and V4R5 REAL

DECIMAL

IBM DB2 UDB 6, 7.1, and 7.2 REAL
Informix Dynamic Server 7.3 FLOAT

SMALLFLOAT

Informix Dynamic Server 9.x SINGLE

DECIMAL

Microsoft Access 2.0, 95, 97, and 2000 SINGLE

DECIMAL

Microsoft SQL Server 6.5, 7.0, and 2000 FLOAT
MySQL 3.22, 3.23, and 4.x FLOAT
Sybase Adaptive Server 11 and 12 FLOATN

REAL


Table 3 shows a sample of data types that you can map to BINARY_DOUBLE for each plug-in.

Table 3 Data Type Mappings for BINARY_DOUBLE

Plug-in Data Type
MySQL 3.22, 3.23, and 4.x DOUBLE PRECISION
IBM DB2/400 V4R3 and V4R5

IBM DB2 UDB 6, 7.1, and 7.2

Informix Dynamic Server 9.x

Microsoft Access 2.0, 95, 97, and 2000

MySQL 3.22, 3.23, and 4.x

DOUBLE

Using Row Timestamp for Optimistic Locking

Oracle Database 10g provides optimistic locking through the introduction of the Row Timestamp pseudo-column. This pseudo-column represents the System Change Number (SCN) values for each row. Until now, when posting updates to the database, applications had to read in all column values or user-specified indicator columns, compare them with those previously fetched, and update those with identical values. With the Row Timestamp feature, applications only need to retrieve and compare the row SCN to verify that no changes occurred between selecting and updating the values. For information about the row SCN, see the Oracle Database SQL Reference.

Other databases may implement optimistic locking differently from Oracle. For example, Sybase Adaptive Server provides optimistic locking through the use of its TIMESTAMP data type. However, Migration Workbench does not automatically map the row timestamp to the Oracle Database 10g Row Timestamp.

To maintain optimistic locking within Oracle Database 10g using the Row Timestamp feature, you might have to do the following:

Enhanced Regular Expressions

Migration Workbench can map the Oracle Database 10g REGEXP_LIKE SQL function when you are migrating Informix Dynamic Server, Microsoft SQL Server, and Sybase Adaptive Server to Oracle. REGEXP_LIKE is similar to the LIKE condition, except REGEXP_LIKE performs regular expression matching instead of the simple pattern matching performed by LIKE. This condition evaluates strings using characters as defined by the input character set.


Note:

The Informix Dynamic Server online help has been updated for this release. Therefore, for more information about the Oracle Database 10g REGEXP_LIKE SQL function for Informix Dynamic Server, see the Informix Dynamic Server online help.

In the stored procedures, triggers, and views parser options page of Migration Workbench, you have the following option available for Microsoft SQL Server and Sybase Adaptive Server:


Note:

Use column name aliases in reference cursor, is no longer available on the stored procedures, triggers, and views parser options page of Migration Workbench for Microsoft SQL Server and Sybase Adaptive Server.

Using Oracle Database 10g REGEXP_LIKE Function

Select the Use Oracle 10g REGEXP_LIKE function option to enable Migration Workbench to determine whether a specific column, variable, or text string contains text matching a regular expression. If Migration Workbench cannot convert an expression during the creation of the Oracle Model, it uses the Alter_TSQL_Regexp function in the omwb_emulation schema. This enables Migration Workbench to automatically modify the syntax at the runtime of the application. For more information about the REGEXP_LIKE function, see the Oracle Database SQL Reference.

Using the MySQL Connector/J3.0 JDBC Driver

Migration Workbench now uses the MySQL Connector/J 3.0 JDBC driver to connect to MySQL. For more information about downloading and using this driver, see the Oracle Migration Workbench User's Guide.


Note:

Migration Workbench does not provide support for the MM MySQL JDBC driver release 1.2a.

Migrating From MySQL 4.x

Migration Workbench supports the migration of MySQL 4.x databases, including Foreign Key constraints. For more information about migrating your MySQL 4.x database to Oracle, see the Oracle Migration Workbench User's Guide and the Reference Guide for MySQL 3.22, 3.23, 4.x Migrations.

Setting Up Migration Workbench

Before you install Migration Workbench, review the Hardware Requirements and Software Requirements topics.

Hardware Requirements

Migration Workbench has the following minimum and recommended hardware requirements:

  • Personal computer based on an Intel 80486 processor or higher. A minimum of Pentium 233Mhz processor is recommended

  • 128MB RAM (256MB recommended)

  • 65MB hard disk space for the installation of Migration Workbench and its dependencies

  • VGA video (SVGA is recommended)

  • Microsoft Windows 98/2000/NT/XP or Linux x86 compatible network adapter

Software Requirements

Migration Workbench has minimum and recommended software requirements. To migrate a plug-in, it is recommended that you have the following:

  • Microsoft Windows NT 4.0 (Service Pack 6.0a), Microsoft Windows 98/2000/XP, or Red Hat Enterprise Linux 3

  • At least 30MB of space available in the tablespace where you create the Workbench repository. You should create a separate default tablespace for the user of the Workbench repository

The following table lists the version of each component that is used by Migration Workbench:

Component Version
Olite database 5.0.2.0.0
EWT 3.4.29
Oracle Help for Java 4.2.5
Java Runtime Environment (JRE) 1.4.2_04
Java Database Connectivity (JDBC) JDK 1.2/1.3
Kodiak 1.2.1
XML Parser 9.2.0.5.0
ICE browser 5.06.10

Installing Migration Workbench

After you download the Migration Workbench, you can install it on Windows or Linux x86. The following sections describe the installation process:

Windows Installation

To install Migration Workbench on Windows:

Task 1: Download Migration Workbench and Plug-in

Download Migration Workbench and the plug-in for the database that you want to migrate from the Oracle Migration Workbench Web site:

http://www.oracle.com/technology/tech/migration/workbench/index.html


Note:

To install Migration Workbench, you need an unzip tool.

The Oracle Migration Workbench Downloads page provides specific instructions about how to download the Migration Workbench installation (omwb.zip) file and the relevant plug-in (plug-in.jar) file.

Task 2: Installing Migration Workbench and Plug-in

Migration Workbench provides a user interface, including wizards, that help you migrate third-party databases to an Oracle database. Individual plug-ins are available to migrate different third-party databases to an Oracle database.

To install Migration Workbench and plug-in for the database that you want to migrate:


Note:

You must install at least one plug-in with Migration Workbench.

  1. Start Microsoft Windows.

  2. Log on to the system as a member of the Administrators Group.

  3. Unzip the omwb.zip file to the directory where you want to install Migration Workbench.


    Note:

    The remainder of this document uses OMWB_install_dir to represent the directory location in which Migration Workbench was installed. For example, if you unzipped Migration Workbench to c:\omwb1010, OMWB_install_dir is the c:\omwb1010 directory.

  4. Copy the plug-in.jar file to the OMWB_install_dir\Omwb\plugins directory.


See Also:

For information about using Migration Workbench, see the Oracle Migration Workbench User's Guide.

Linux x86 Installation

To install Migration Workbench on Linux x86:

Task 1: Downloading Migration Workbench and Plug-in

Download Migration Workbench and the plug-in for the database that you want to migrate from the Oracle Migration Workbench Web site:

http://www.oracle.com/technology/tech/migration/workbench/index.html


Note:

To install Migration Workbench, you need an unzip tool.

The Oracle Migration Workbench Downloads page provides specific instructions about how to download the Migration Workbench installation (omwb.zip) file and the relevant plug-in (plug-in.jar) file.

Task 2: Installing Migration Workbench and Plug-in

Migration Workbench provides a user interface, including wizards, that help you migrate third-party databases to an Oracle database. Individual plug-ins are available to migrate different third-party databases to an Oracle database.

To install Migration Workbench and plug-in for the database that you want to migrate:


Note:

You must install at least one plug-in with Migration Workbench.

  1. Open a terminal session on Linux x86.

  2. Unzip the omwb.zip file to the directory where you want to install Migration Workbench.


    Note:

    The remainder of this document uses OMWB_install_dir to represent the directory location in which Migration Workbench was installed. For example, if you unzipped Migration Workbench to /home/user/omwb1010, OMWB_install_dir is the omwb1010 directory.

  3. Copy the plug-in.jar file to the OMWB_install_dir/Omwb/plugins directory.


    See Also:

    For information about using Migration Workbench, see the Oracle Migration Workbench User's Guide.

Configuring Migration Workbench to Use the Default Browser

To view Migration Workbench HTML files, such as the Quick Tour, Migration Workbench attempts to activate the default browser on a Windows system. However, Migration Workbench does not know the name or path of the default browser. It relies on the Windows or Linux x86 file associations to activate the browser, if one exists.

To avoid any Web browser problems, Migration Workbench uses the state.properties file to specify the exact path of the system browser. The state.properties file is automatically generated the first time you launch Migration Workbench.

If there is a problem executing the browser command on a Windows or Linux x86 system, you receive the following error message:

Problem executing Browser command command executed. Please specify the browser path in the c:\omwb1010\Omwb\state.properties initialization file for the BROWSER_PATH property, then restart the Migration Workbench. For more information please read the release notes.

To ensure that Migration Workbench launches the correct browser, edit the state.properties file as follows:

  1. Close Migration Workbench.

  2. Navigate to the following directory:

    • On Windows:

      OMWB_install_dir\Omwb\bin
      
      
    • On UNIX:

      OMWB_install_dir/Omwb/bin
      
      
  3. Open the state.properties file.

  4. In the BROWSER_PATH section, enter the exact path of the browser Migration Workbench should use. For example:

    • On Windows:

      c:\Program Files\Netscape\Communicator\Program\Netscape.exe
      
      
    • On UNIX:

      user/local/bin/Mozilla
      
      
  5. From the File menu, select Save, then close the file.

  6. Restart Migration Workbench for the changes to take effect.

Using a Workbench Repository Created by a Previous Release

This release of Migration Workbench does not support Workbench repositories created by previous releases of Migration Workbench. If you log in to the current release of Migration Workbench with a Workbench repository user from an earlier release, you cannot continue unless you re-create the Workbench repository. Re-creating the Workbench repository deletes all information from the earlier version. Oracle recommends that you create a specific Workbench repository user account, for example, REPUSER. For more information about creating the REPUSER account, see the Oracle Migration Workbench User's Guide.

Removing the Migration Workbench

To remove this release of Migration Workbench, delete the entire Migration Workbench installation directory OMWB_install_dir. No other action is required.


Note:

For Migration Workbench Release 9.2.0.16 or earlier, use Oracle Universal Installer to remove the product.

Documentation Issues

The following documents are updated for this release:

The following issues apply to the Oracle Migration Workbench documentation:

Oracle Migration Workbench Frequently Asked Questions (FAQ)

The Oracle Migration Workbench Frequently Asked Questions (FAQ) contains an error in the Installation and Configuration section. The following question and its answer are obsolete:

Can I install the Migration Workbench into an Oracle home directory that contains a release of the Oracle Server earlier than Oracle9i?

For accurate information about installing Migration Workbench, see "Installing Migration Workbench".

Using a Thick JDBC Driver to Connect to the Workbench Repository

This section describes the missing information in the Migration Workbench Repository Login topic of the online help.

By default, Migration Workbench uses a thin JDBC driver to connect to the Workbench repository. However, if you have a thick JDBC driver installed on your computer, it is possible to use it to connect to the Workbench repository.

To connect to the Workbench repository using a thick JDBC driver:

  1. From the Oracle Migration Workbench Repository Login dialog box, specify only the following options:

    • Username

    • Password

    • SID


    Note:

    You must have these connection details in the tnsnames.ora file.

  2. Click OK.

    Migration Workbench connects to the Workbench repository.

Using Nonstandard Character Encoding on Windows

This section describes the missing nonstandard character encoding information in the Oracle Migration Workbench User's Guide.

To configure Migration Workbench to use nonstandard character encoding:

  1. Set the JRE file encoding property as follows:

    1. Using a text editor, open the Migration Workbench startup file by editing the omwb.bat file located in the OMWB_install_dir/Omwb/bin directory.

    2. Add the following information to the start command, before -jar:

      -Dfile.encoding="file_encoding"
      
      

      In the previous line, file_encoding is the required file encoding. For example, for Japanese file encoding, the omwb.bat file should look similar to the following:

      start ..\jre\bin\javaw -ms30m -mx256m -Dfile.encoding="Shift_Jis" -jar ..\lib\boot.jar oracle.mtg.migrationUI.MigrationApp
       
      
    3. Save the file, then exit.

  2. Install the appropriate font.properties file for the required file encoding as follows:

    1. Make a backup copy of your existing font.properties file in the OMWB_install_dir/Omwb/jre/lib directory.

    2. Download the required Java font.properties file from the following Web site:

      http://www.sun.com/
      
      
    3. Rename the downloaded file to font.properties. For example, rename the Japanese font.properties file from font.properties.ja to font.properties.

    4. Copy the new font.properties file into the OMWB_install_dir/Omwb/jre/lib directory.

  3. If you are performing an offline capture, you must specify delimiter characters in the offline capture scripts as follows:

    1. Using a text editor, open the omwb.properties file located in the OMWB_install_dir/Omwb/bin directory.

    2. Edit or add the following fields:

      OFFLINE_CAPTURE_COLUMN_DELIMITER="delimiter_column"
      OFFLINE_CAPTURE_ROW_DELIMITER="delimiter_row"
      
      

      In the previous lines, delimiter_column is your choice of column delimiter and delimiter_row is your choice of row delimiter.


      Note:

      These delimiter values must correspond to the delimiter values used in the offline capture scripts.

    3. Save the file, then exit.

      Migration Workbench is now enabled to handle the new character encoding.

Limitations and Bugs

To report a bug, see the instructions in the Oracle Migration Workbench Support Web site at:

http://www.oracle.com/technology/support/tech/migration/workbench/index.html

This section contains the following topics:

Multi-level Linked Tables in Microsoft Access

Migration Workbench only supports one level of linked tables. If you have a table with links to a second table, these links are preserved. However, links in the second table are not migrated to Oracle.

Informix Dynamic Server Offline Capture Scripts

If you are migrating Informix Dynamic Server 9.x using the offline capture method, use the offline capture scripts provided with this release of Migration Workbench. Otherwise, the offline capture fails. If you convert script files to UNIX, you must create offline capture files in Linux x86, not Windows.

Open Bugs

The following are known issues with this release of Migration Workbench:

Bug 2751529 - Database Names That Contain Special Characters Do Not Work

If a database name in the source database contains special characters, such as a dash (-), Migration Workbench cannot extract that database.

Workaround To migrate a database name that contains special characters:

  1. Create a database with a name that does not contain special characters.

  2. Copy the schema and data from the database containing special characters to the new database.

Bug 3213619 - In Stored Procedures and Trigger T-SQL Code, DBO is Mapped to Unknown

The user dbo is set to unknown in the T-SQL code of stored procedures and triggers.

Workaround Before migrating, edit the PL/SQL text in the Oracle Model to reset the user dbo to the required value.

Bug 3246470 - Two Instances of Migration Workbench Might Cause Uniqueness Problems

Two instances of Migration Workbench running at the same time may create problems. For example, if you create a tablespace with the name TABSPC in one instance, you may have problems if you create the same tablespace in another instance of Migration Workbench. This causes two tablespaces of the same name to exist in the Workbench repository that results in unnecessary errors during migration.

Workaround Oracle recommends that you run only a single instance of Migration Workbench.

Bug 3274651 - Custom Tablespace: Constraints Need to be Given for the OM_TABLESPACE_INFO

Migration Workbench does not validate the directory path entered in the Data File Directory option on the General page of the Options dialog. You may have problems creating tablespaces if the directory path is incorrect or invalid.

Workaround Ensure that the directory path is correct in the Data File Directory option of the Options dialog. You should also ensure that the directory path uses the correct format for your destination platform. To verify or change the directory path, from the Tools menu, select Options. If the directory path is incorrect, modify it or leave it blank. If this field is blank, Migration Workbench uses the default data file directory for the destination database.

Bug 3211372 - Updating Default Tablespace Under One Schema Filters Across All Schema

If you make changes to the Indexes: Default Storage Options or Tables: Default Storage Options property sheet for one user, they apply to all users.

Workaround Oracle recommends that after you migrate the database using Migration Workbench, you use Oracle Enterprise Manager to make changes to the index or table storage options. You can also use Migration Workbench to make changes to the default storage options that only apply to a specific user for that index or table. From the Oracle Model tree, make your changes by selecting the Override Default Storage Options tab from the specific index or table, not the Default Storage Options tab for all indexes or tables.

Bug 3252653 - JAVA.SQL.EXCEPTION: [POL-4005] Null Class Object is Not Allowed

When you are using the default Workbench repository, Migration Workbench raises this error when it attempts to create an index on an empty Source Model table column.

Workaround Ignore this error as it has no effect on the migration.

Bug 4119713 - CLOB ROWS ARE MIGRATED IN THE WRONG ORDER

Migrating rows with CLOB values from Microsoft SQL Server 7.0 to Oracle online, they are inserted into the Oracle table in the wrong order.

Workaround Migrate the Microsoft SQL Server 7.0 database using the offline method. For more information about offline migrations, see the Oracle Migration Workbench User's Guide.

Fixed Bugs

The following table lists the bugs fixed in this release of Migration Workbench:

Bug No Component Description
3507285 TSQLPARSE SUPPORT ORACLE 10G REGEXP_LIKE EXPRESSION IN TSQL PARSER
3507293 INFORPARSE SUPPORT ORACLE 10G REGEXP_LIKE EXPRESSION IN INFORMIX PARSER
3202676 COMMON UNIQUE CONSTRAINTS ARE DISPLAYED UNDER PRIMARY KEYS CONTAINER TREE ITEM IN SM
2694054 COMMON UNIQUE CONSTRAINTS BEING DISPLAYED WITHIN 'INDEXES' AND 'UNIQUE CONSTRAINTS'
3287180 SQLSRV2000 FAIL TO MAP ANY PRIMARY KEYS TO ORACLE MODEL WHEN PK'S HAVE SAME NAME
2739049 COMMON MULTIPLE FOREIGN KEYS ON SAME COLUMNS MAPPED TO ORACLE, 2ND FAILS TO GENERATE
3479353 SYBASE12 DEFAULTS 'EXPRESSION' IN SYBASE 12 NOT MAPPED PROPERLY BY OMWB
3286082 SQLSRV2000 DELETION OF 'LOGIN' NODE FROM SOURCE MODEL NO LONGER ALLOWED
2740584 COMMON OFFLINE DATA MOVE SCRIPTS FOR UNIX
3274327 COMMON SQL_LOAD_SCRIPT.SH INCORRECTLY GENERATED
3479495 SQLSRV2000 DATABASE OFFLINE CAPTURE NOT POSSIBLE IF SQL SERVER DATABASE IS CASE SENSITIVE
2694372 TSQLPARSE T-SQL PARSER NOT PREPENDING FUCNCTION CALLS WITH CORRECT OWNER NAME IN PLSQL
3569486 SQLSRV2000 CANNOT DISPLAY JAPANESE OBJECT NAME
3287163 SQLSRV2000 MULTIPLE LOADING OF PRIMARY KEYS
2921208 SYBASE EMPTY STRING IN DEFAULTS NOT MIGRATED CORRECTLY - VALUE SHOULD BE OPTIONAL
3261738 SYBASE12 DSML/OFFLINE CAPTURE RESULTS IN MTG_SYSCONSTRAINTS VIEW IN SOURCE MODEL
3330000 COMMON GENERATE MIGRATION SCRIPTS VARIABLE STARTVAL NUMBER
2146804 SQLSERVER7 SYSTEM TABLE DTPROPERTIES IS CAPTURED AS USER TABLE
3415768 INFORMIX73 OFF-LINE CAPTURE RESTRICTED TO LESS THAN 70 DATABASES PER REPOSITORY
3406886 INFORMIX73 INFORMIX STORED PROCEDURE TEXT IS MISSING SOME SPACE( " ") CHARACTERS WITH DSML
3403388 INFORMIX73 DOUBLE QUOTES IN STORED PROGRAMS HAVE ESCAPE BACKSLASH'S BEFORE THEM (\")
3258678 COMMON PUBLIC SYNONYMS BEING GENERATED TWICE IN MIGRATION SCRIPTS
3194411 SYBASE EXCEPTION :SYBASE11DISCONNSOURCEMODELLOAD.SOURCEMODELINDEXDROP(): JAVA.UTIL.VECT
3403446 INFORMIX73 OMWB SOURCE MODEL FAILS TO DISPLAY DATABASE TREE BECAUSE OF TABLE DEFAULT
3604148 INSTALLER MYSQL3 REPOSITORY NOT CLEANING UP AFTER DE-INSTALL
3604239 MYSQL CANNOT RUN MYSQL4.0 PLUGIN
3604130 INSTALLER REMOVAL OF PLUGIN+ADDITION OF PLUGIN CAUSES ERROR ON OMWB STARTUP
3261805 DOC USER'S GUIDE INCORRECT W.R.T DESTINATION USER PRIVILEGES
3249714 DOC INFORMIX ONLINE HELP SEARCH DOES NOT WORK
3073363 DOC NEED TO DESCRIBE USE OF DEFAULT_OWNER ENV. VARIABLE IN ONLINE HELP
2312024 INFORMIX73 HELP TOPIC MISSING FOR ESQL, FILE REGENERATION
2115966 INFORMIX73 ERROR IN NAMING OF SOURCE MODEL LOAD IN STEP 1, SOURCE MODEL LOAD DETAILS
3638042 SQLSERVER7 NULLPOINTEREXCEPTION (USERFLOW) DURING CAPTURE