GoldenGate for MS SQL Server 2005 to Oracle
GoldenGate for MS SQL Server 2005 to Oracle
Objective
Upon completion of this lesson, you will be able to configure GoldenGate to
provide MS SQL Server to Oracle synchronization.
During this lesson, you will learn how to:
„ Prepare your user environment.
„ Configure and execute the initial data synchronization process.
„ Configure and start the change capture process of database operations.
„ Configure and start the change delivery process of database operations.
MS SQL Server to Oracle configuration
The following diagram illustrates a GoldenGate configuration for log-based
replication from MS SQL Server source data to an Oracle target database on
Windows or UNIX.
Windows server <source>
<target> server
MS SQL Server
<dsn>
Source
<schema>
Log
Manager
Manager
Network
Extract
Collector
Trails
Oracle
Replicat
Target
<owner/schema>
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GoldenGate for MS SQL Server 2005 to Oracle
Overview of Tasks
Prepare the Environment
In order to execute this lesson, the GoldenGate application must be installed on
both the source and target systems. The installation includes a sample database
and scripts to generate initial data as well as subsequent update operations. The
source and target tables are created and loaded with initial data. The GoldenGate
Manager processes are also started so that other processes may be configured and
started. And finally, source definitions are generated and transfer to the target
system.
Configure Initial Data Synchronization
Initial database synchronization is almost always required. To initially load data
across heterogeneous databases, you have limited choices. GoldenGate provides
the ability to perform initial data synchronization while your application remains
active.
This lesson demonstrates using Extract to pull data from the source files and send
it directly to the Replicat component on the target system.
<source> server
<target> server
MS SQL Server
Target
<schema>
Oracle
Network
<dsn>
Initial
Extract
Initial
Replicat
Source
<owner/schema>
Configure Change Capture
The Extract process is configured to capture change data directly from the SQL
Server recovery logs (transaction logs) and distribute the changes to a series of
files known as a GoldenGate trails.
This lesson demonstrates extracting the data with Extract and sending the data
directly to the Replicat process. This is known as the direct load method.
Configure Change Delivery
Once the tables have been initially loaded with data, the Replicat process is
configured to deliver the captured change data into the target database.
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Exercise Name
Exercise 1.
Prepare the Environment
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Objective
The goals of this exercise are to:
„ Create the database
„ Create SQL Server logins and users
„ Create ODBC data source.
„ Set up transaction logging.
„ Create tables and populate source data.
Prerequisites
This lab assumes that the GLOBALS parameters have been created with a <mgr
service> name and that the Manager service has been added. This should have
been done when installing GoldenGate for Windows.
Prepare the SQL Server 2005 source environment
Install Manager
1. Configure Manager process on the source
Execute the following commands on the <source> system.
Note! The port numbers must be unique if you are installing GoldenGate more
than once on the same server.
Shell> ggsci
GGSCI> EDIT PARAMS MGR
 In the parameter file, enter the following parameter, then save and close
the file.
PORT <port>
 Start Manager.
GGSCI> START MANAGER
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 Verify the results:
GGSCI> INFO MANAGER
Create the database
2. Create the database
From Start>Programs, run SQL Server Management Studio.
 Enter the name of the local SQL Server instance, then click connect.
Note: These instructions assume SQL Server Authentication which requires
the more complex, double layer, of authentication. SQL Server
Authentication is an option only if it is permitted at the server level, and
only Windows Authentication is enabled by default. If you are using Windows
Authentication, you can leave out most of the login and password entries.
 This displays the main SQL Server Management Studio dialog box. Right,
right-click Database and select the New Database option.
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 The New Database dialog box appears. In the Name box, type the
<database> from the Lab Preparation worksheet.
 Click OK to add the database.
 The main SQL Server Management Studio dialog box reappears.
3. Create SQL Server logins and users
 Right click Security and select the New > Login.
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 The New Login dialog box appears.
 For Name, type the <login>.
 Select Authentication,
 If you selected SQL Server Authentication, type the <password> in the two
Password fields.
 Under Defaults, select your <database> for Database, and leave Language set
to the default.
 Do not click OK. Instead, from Select a page in the upper left-hand box,
double click Server Roles.
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 Under Server Role, check the box for the System Administrators role.
 Click OK to exit.
The next step creates a schema that you will associate with the new user.
 While you have the database selected, click on the New Query button in the
main menu.
 The right side of the dialog displays the SQL Query interface. Type in:
create schema <owner/schema>;
And press the Execute button from the toolbar.
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Now you need to associate the new user and the schema that you have created
with the new database.
 Right click on the Security option that is under the database and select New
> User.
 The New Database User dialog box appears. Enter the name of your user
and press the browse button labeled with three dots (…).
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 The Select Login dialog displays. Press the Browse button.
 Select your new user <login> from the list. Then press OK.
 Your selected user now displays in the object names box. Press OK to exit
from Select Login.
 Back in the New Database User dialog, enter the <schema> you added as
the default schema and press OK.
4. Create the ODBC system data source name
The GoldenGate Extract process connects to a SQL Server database through an
ODBC (Open Database Connectivity) connection. Both the Extract and Replicat
components of GoldenGate require that a system data source name (DSN) be
established, which stores the information about how to connect to the SQL Server.
 Click Start > Settings > Control Panel.
 Double-click Administrative Tools.
 Double-click Data Sources (ODBC) to open the ODBC Data Source
Administrator dialog box.
 Click the System DSN tab, and then click the Add button. The Create New
Data Source dialog box appears.
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 Select the SQL Server driver and then click Finish. The Create a New Data
Source to SQL Server dialog box appears.
 For Name, type <dsn>.
 Optionally type in a description, type for this source DSN.
 For Which SQL Server do you want to connect to, select local if SQL Server is
on the local system, or enter the server name at your SQL Server location.
 Click Next.
 Answer the question about how SQL Server should verify the login by
selecting the option that you entered when creating the <login>. Then type
<login> in Login ID and <password> in Password.
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 Click Next.
 Make certain the default database is set to the database that you created;
otherwise select Change the default database to: and select it. Leave the
other settings to their defaults to use ANSI.
 Click Next.
 Leave the next dialog box set to the defaults, and click Finish.
 In the confirmation, click Test Data Source to test the connection.
 Close the confirmation dialog box and the Create a New Data Source box.
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 You can leave the SQL Server Management Studio running on the source
system, because you will be using it later.
5. Create the practice tables and insert source data
Execute the following commands on the <source> system only.
 Go to SQL Server Management Studio, select your database and select New
Query from the toolbar.
 If the correct database is not displayed in the drop down box (showing
ggsdata above), click on the arrow and select it from the list.
 Click the File > Open and navigate to the demo_mss_create.sql script.
 Click Open to open the script in the New Query window.
 Execute the script by clicking the Execute Query button on the toolbar.
 Verify the results using the following commands in the input window:
sp_help tcustmer
go
sp_help tcustord
go
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 Click the X button to close the input tab. Click New Query whenever you
need to run another SQL command.
 Following the steps you used to execute the table create script, run the
demo_mss_insert.sql script to insert source data into the source tcustmer
and tcustord tables.
Note! Run this on the source only.
 Verify the results as you did before.
 Leave the SQL Management Studio running on the source system.
Install replication components for SQL Server 2005
Installing replication components sets up the Microsoft SQL Server 2005
Distributor database and Publisher. This is not needed if you meet the following
conditions:
 You have installed MicroSoft’s Cumulative Update 6 (CU6) for SQL Server
2005.
 You are running GoldenGate version 9.5.1.15 or higher.
If you do not meet both of these conditions, replication components must be
installed on your <source> system in order to capture changes generated by SQL
Server 2005. Unless your instructor indicates that these components have already
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been installed and configured, perform the workshop SQL Server 2005 Replication
Components before proceeding to the next section.
Prepare for transaction logging
To support GoldenGate extraction, the following are required. Execute these steps
on the <source> system only.
„ Log truncation and non-logged bulk copy must be turned off.
„ The SQL Server database must be set to the full recovery model (this is the
default for SQL Server 2005).
„ At least one full database backup must be done before GoldenGate
processes are started for the first time.
„ Additional log data must be enabled so GoldenGate can reconstruct update
operations.
„ Microsoft SQL Server 2005 replication components must be installed
(previous step).
6. Turn off log truncation and bulk copy
In SQL Management Studio on the source system perform the following steps to
turn off log truncation and bulk copy.
 Clear the input window and then use the following command to check the
status of the log truncation option. Type the command in the input window
(upper window), then click the F5 key to execute it.
exec sp_dboption '<database>', 'trunc. log on chkpt.'
 The following response appears in the results (lower) window with a status
of either ON or OFF.
If log truncation is ON, turn it off by executing the following command.
exec sp_dboption '<database>', 'trunc. log on chkpt.', false
The output should now show a CurrentSetting of OFF’.
 Check the status of the non-logged bulk copy option by executing the
following command:
exec sp_dboption '<database>', 'select into/bulkcopy'
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If non-logged bulk copy is on, disable it with the following command:
exec sp_dboption '<database>', ' select into/bulkcopy ', false
7. Execute backup
Still in SQL Server Management Studio:
 In the console tree, right-click the database name and select Tasks > Backup
.
 The Back Up Database dialog box displays. If the back up destination is
correct, skip the next two bulleted steps and initiate the backup as
explained in the last step. If it is not correct, change the backup destination
and click ADD.
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 The Select Backup Destination appears, where you can select File Name and
then click the navigation (...) button to navigate to a directory and specify
the backup file name.
 Click OK to close the Select Backup Destination dialog box. The backup file is
added to the Destination list box in the SQL Server Backup dialog box.
 Click OK to start the backup. This procedure ensures that no transaction
log information is lost when GoldenGate starts up.
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8. Set up capture of additional log data
Perform the following steps on the source system to configure the database to log
full before and after images for each update operation.
 From the source operating system's command shell, run GGSCI.
 Log into the database with the following command:
GGSCI > DBLOGIN SOURCEDB <dsn>, USERID <login>, PASSWORD
<password>
 Issue the following commands to force the logging of the full before and
after image for updates.
GGSCI > ADD TRANDATA <owner/schema>.tcustmer
GGSCI > ADD TRANDATA <owner/schema>.tcustord
 Verify that supplemental logging has been turned on for these tables.
GGSCI> INFO TRANDATA <owner/schema>.tcust*
Note: With SQL Server 2005 you cannot drop tables that have TRANDATA
set. First you must delete the TRANDATA setting.
Create source definitions
9. Configure source definition generator
Execute the following commands on the <source> system.
 Bring up the DEFGEN parameter file in the editor.
GGSCI> EDIT PARAM DEFGEN
 Type in the parameters shown below.
DEFSFILE ./dirdef/source.def, PURGE
SOURCEDB <dsn>, USERID <login>, PASSWORD <password>
TABLE <owner/schema>.TCUSTMER;
TABLE <owner/schema>.TCUSTORD;
 Exit from GGSCI.
GGSCI> EXIT
10. Execute the source definition generator
Execute the source definition generator from the Windows command prompt.
Shell> defgen paramfile .\dirprm\defgen.prm
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11. Transfer the source definition file to the target system
Execute the following commands on the <source> system to transfer the definition
file to the <target> system.
The cd command should be set to the <target> location and the lcd to the <source>
location.
Shell> ftp <target>
Name (<target>:<login>): <login>
Password: <password>
ftp> ascii
ftp> cd <install loc>/dirdef
ftp> lcd <install loc>/dirdef
ftp> put source.def
ftp> bye
Note: To avoid overlaying existing definition files, always put the file as <db
type>.def instead of source.def (e.g. MSSQL.def).
Disable SQL Server Log Reader Agent job
12. Stop and disable the job
The Log Reader Agent job cannot run concurrently with the GoldenGate Extract
process. Perform the following steps to stop and disable this job.
 In SQL Server Management Studio, connect to the SQL Server 2005
instance.
 Start SQL Server Agent, if not running.
 Expand the SQL Server Agent folder.
 Expand the Jobs folder.
 Find the job that was created by the ADD TRANDATA command. The name is
based on the server, instance, and database name, plus the iteration of the
publication.It will look similar to the following: KTANCO\SQL2005-
SQLLBE_SRC-1
 Right click the job and select Stop Job.
 Right click the job again and select Disable.
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Prepare your target Oracle environment
Configure the Manager
1. Configure the Manager process on the target system
Execute the following commands on the <target> system.
 Start the command interface
Shell> cd <install location>
Shell> ggsci
 Specify the port that the Manager should use.
GGSCI> EDIT PARAMS MGR
-- GoldenGate Manager Parameter file
PORT <port>
 Start Manager
GGSCI> START MANAGER
Verify the results:
GGSCI> INFO MANAGER
Create the tables
2. Create target Oracle tables
Execute the following commands on the <target> system to run the script that
creates the tables.
Shell> cd <install location>
Shell> sqlplus <login>/<password>
SQL> @demo_ora_create
Verify the results:
SQL> desc tcustmer;
SQL> desc tcustord;
SQL> exit
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Initial Data Load
Exercise 2.
Initial Data Load using Direct Load Method
Objective
These steps configure initial load groups that copy source data and apply it to the
target tables.
Configure initial load change capture
1. Add the initial data load extract batch task group
Execute the following commands on the <source> system to add an Extract process
called EINI<unique id>1.
 Execute the following command in GGSCI to create the batch task.
Shell> cd <install location>
Shell> ggsci
GGSCI> ADD EXTRACT EINI<unique id>, SOURCEISTABLE
 Verify the results:
GGSCI> INFO EXTRACT *, TASKS
2. Configure the initial data load Extract parameter file
 Execute the following command in GGSCI to open the editor.
GGSCI> EDIT PARAMS EINI<unique id>
 Add the following lines to the parameter file
--- GoldenGate Initial Data Capture
-- for TCUSTMER and TCUSTORD
-EXTRACT EINI<unique id>
SOURCEDB <dsn>, USERID <login>, PASSWORD <password>
RMTHOST <target>, MGRPORT <port>
RMTTASK REPLICAT, GROUP RINI<unique id>
TABLE <owner/schema>.TCUSTMER;
TABLE <owner/schema>.TCUSTORD;
The process names used in lab exercises, for example EINIBD, are made up of 1) one character
for the GoldenGate process (E for Extract, R for Replicat); 2) three or four to describe the
process type (INI for initial data load, ORA for capture from or delivery to an Oracle database,
etc.) and 3) two characters to create a unique identifier (usually your initials).
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Initial Data Load
Configure the initial load delivery
3. Add the initial data load Replicat batch task group
Execute the following commands on the <target> system.
 Execute the following command in GGSCI to create the batch task.
GGSCI> ADD REPLICAT RINI<unique id>, SPECIALRUN
 Verify the results:
GGSCI> INFO RINI<unique id>*, TASKS
4. Configure the initial data load Replicat parameter file
Execute the following commands on the <target> system.
 Execute the following command in GGSCI to open the editor.
GGSCI> EDIT PARAMS RINI<unique id>
 Add the following lines to the parameter file
-- GoldenGate Initial Data Load Delivery
-REPLICAT RINI<unique id>
USERID <login>, PASSWORD <password>
DISCARDFILE ./dirrpt/RINI<unique id>.txt, PURGE
SOURCEDEFS ./dirdef/source.def
MAP <owner/schema>.TCUSTMER, TARGET <owner/schema>.TCUSTMER;
MAP <owner/schema>.TCUSTORD, TARGET <owner/schema>.TCUSTORD;
Note: Remember to use <db type>.def if you renamed the source.def when you
transferred it to the <target>.
5. Execute the initial data load process
Execute the following commands on the <source> system.
 Execute the following command to start the initial data load process.
GGSCI> START EXTRACT EINI<unique id>
 Verify the results:
GGSCI> VIEW REPORT EINI<unique id>
Execute the following commands on the <target> system.
 Verify the results:
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Initial Data Load
GGSCI> VIEW REPORT RINI<unique id>
GGSCI> EXIT
Shell> SQLPLUS <login>/<password>
SQL> SELECT * FROM <owner/schema>.TCUSTMER
SQL> SELECT * FROM <owner/schema>.TCUSTORD
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Configure Change Capture
Exercise 3.
Configure Change Capture
Objective
The goals of this exercise are to:
„ Add the Extract process that will capture changes.
„ Add the trail that will store the changes.
„ Start the Extract process.
Steps to configure change
1. Add the Extract checkpoint group
Execute the following commands on the <source> system to create the Extract
group.
GGSCI> ADD EXTRACT EMSS<unique id>, TRANLOG, BEGIN NOW
Verify the results:
GGSCI> INFO EXTRACT EMSS<unique id>
2. Create the Extract parameter file
Execute the following commands on the <source> system.
 Execute the following command in GGSCI to open the editor.
GGSCI> EDIT PARAM EMSS<unique id>
 Add the following lines to the parameter file.
Note: MANAGESECONDARYTRUNCATIONPOINT is valid only for SQL Server
2005, so should not be included for SQL Server 2000.
--- Parameter file to capture
-- TCUSTMER and TCUSTORD Changes
-EXTRACT EMSS<unique id>
--Include the following only for SQL Server 2005
TRANLOGOPTIONS MANAGESECONDARYTRUNCATIONPOINT
-- If SQL Server Replication is also running, choose
-- the NOMANAGESECONDARYTRUNCATIONPOINT option
SOURCEDB <dsn>, USERID <login>, PASSWORD <password>
RMTHOST <target>, MGRPORT <port>
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Configure Change Capture
RMTTRAIL ./dirdat/<trail id>
TABLE <owner/schema>.TCUSTMER;
TABLE <owner/schema>.TCUSTORD;
Note: Record the two characters selected for your <trail id>: ______. You will need
this in the next step and when you set up the Replicat.
3. Define the GoldenGate extract trails
Execute the following commands on the <source> system to create a trail.
GGSCI> ADD RMTTRAIL ./dirdat/<trail id>, EXTRACT EMSS<unique id>,
MEGABYTES 50
Verify the results:
GGSCI> INFO RMTTRAIL *
4. Start the Extract process
On the <source> system, issue the following command in GGSCI to start the Extract
process.
GGSCI> START EXTRACT EMSS<unique id>
Verify the results:
GGSCI> INFO EXTRACT EMSS<unique id>, DETAIL
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Configure Change Delivery
Exercise 4.
Configure Change Delivery
Objective
The goals of this exercise are to:
„ Set up the checkpoint table on the target system.
„ Create a named group that includes the Replicat process and the
checkpoint tables.
„ Configure the Replicat group by adding parameters.
„ Start the Replicat group.
Set up checkpoints
1. Edit a GLOBALS file on the target system
Execute the following commands on the <target> system.
 Edit the GLOBALS parameter file to add the checkpoint table.
Shell> cd <install location>
Shell> ggsci
GGSCI> EDIT PARAMS ./GLOBALS
In the text editor, type:
CHECKPOINTTABLE <owner/schema>.ggschkpt
 Record the checkpoint table owner and name, then save and close the file.
Table owner ____________________ name ___________________
Note: You could name the table anything you want, but for training
purposes we are using ggschkpt.
2. Activate the GLOBALS parameters
For the GLOBALS configuration to take effect, you must exit the session in which
the changes were made. Execute the following command to exit GGSCI.
GGSCI> EXIT
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Configure Change Delivery
3. Add a Replicat checkpoint table
Execute the following commands on the <target> system.
This step adds the checkpoint table that you specified when you created the
GLOBALS parameter file. It will be created in the <dsn> database.
 Run GGSCI on the target.
Shell> cd <install location>
Shell> ggsci
 Execute the following commands in GGSCI.
GGSCI> DBLOGIN SOURCEDB <dsn>, USERID <login>, PASSWORD
<password>
GGSCI> ADD CHECKPOINTTABLE
Configure delivery
4. Add the Replicat checkpoint group
Execute the following commands on the <target> system to create the Replicat
group named RMSS<unique id>.
GGSCI> ADD REPLICAT RMSS<unique id>, EXTTRAIL ./dirdat/<trail id>
Note: Refer to your Extract set up for the correct two-character <trail id>.
5. Create Replicat parameter file
 Execute the following command on the <target> system to edit the Replicat
parameter file.
GGSCI> EDIT PARAM RMSS<unique id>
 Add the following lines to the parameter file.
REPLICAT RMSS<unique id>
TARGETDB <dsn>, USERID <login>, PASSWORD <password>
HANDLECOLLISIONS
SOURCEDEFS ./dirdef/source.def
DISCARDFILE ./dirrpt/RMSS<unique id>.DSC, PURGE
MAP <owner/schema>.TCUSTMER, TARGET <owner/schema>.TCUSTMER;
MAP <owner/schema>.TCUSTORD, TARGET <owner/schema>.TCUSTORD;
Note: Remember to use <db type>.def if you renamed the source.def when you
transferred it to the the <target>.
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Configure Change Delivery
4. Start the Replicat process
Execute the following commands on the <target> system.
 Execute the following command in GGSCI to start the Replicat process.
GGSCI> START REPLICAT RMSS<unique id>
 Verify the results:
GGSCI> INFO REPLICAT RMSS<unique id>
Discussion points
Search in the Windows//UNIX Reference Guide for the information on the
following questions.
1. When to use HANDLECOLLISIONS
When would you use HANDLECOLLISIONS? What does it do?
_________________________________________________________________________
_________________________________________________________________________
2. What information is supplied by SOURCEDEFS?
_________________________________________________________________________
_________________________________________________________________________
3. What is the purpose of the DISCARDFILE?
_________________________________________________________________________
_________________________________________________________________________
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Generate Activity and Verify Results
Exercise 5.
Generate Activity & Verify Results
The goals of this exercise are to:
„ Execute miscellaneous update, insert, and delete operations on the source
system.
„ Verify the delivery of the changes to the target
„ Turn off the error handling used for initial load.
Verify your source SQL Server 2005 results
Steps to generate database operations
1. Generate inserts, updates, and deletes
Execute the following commands on the <source> system.
 Go to SQL Server Management Studio, select your database and press New
Query.
 If the correct database is not displayed in the drop down box (showing
ggsdata above), click on the arrow and select it from the list.
 Click the File > Open and navigate to the demo_mss_misc.sql script and click
Open to open it in the input window.
 Execute the script by clicking the Execute Query button on the toolbar.
 Verify and record processing statistics with the following command in
GGSCI.
GGSCI> SEND EXTRACT EMSS<unique id>, REPORT
GGSCI> VIEW REPORT EMSS<unique id>
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Generate Activity and Verify Results
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 Verify the data by executing the following commands in the New Query
window of SQL Server Management Studio on the source:
select * from TCUSTMER;
select * from TCUSTORD;
3. Verify your results on the target system
Execute the following commands on the <target> system to verify the target data.
Shell> cd <install location>
Shell> sqlplus <userid>/<password>
SQL> select * from tcustmer;
SQL> select * from tcustord;
SQL> exit
Shell> ggsci
GGSCI> SEND REPLICAT RORA<unique id>, REPORT
GGSCI> VIEW REPORT RORA<unique id>
Turn off error handling
4. Turn off initial load error handling for the running delivery process
GGSCI> SEND REPLICAT RORA<unique id>, NOHANDLECOLLISIONS
5. Remove initial load error handling from the parameter file
GGSCI> EDIT PARAMS RORA<unique id>
Remove the HANDLECOLLISIONS parameter.
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Exercise Name
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