DataMigrator 7.7 in Real Time

Chris BevilacquaiWay Solutions Architect

Real Time ETL with DataMigatorAgenda

Web ServicesChange Data CaptureFile ListenerIWAF Adapters

Web Services

What are Web Services for?

What is a Web Service?

A software system designed to support interoperable machine-to-machine interaction over a network.

It has an interface described in a machine-processable format (specifically Web Services Description Language WSDL).

– World Wide Web Consortium

.net

Publicly Available Commercial Web Services

Some sources of Public Web ServicesFree and commercial

WSDLL.COMWeb Services – Free and Commercial

Xmethods.net List of public web services

Seekda.com Find WSDL for PhoneVerify Service from cdyne.com

Add adapter for Web Services

Add Connection for a Web Service

Add Connection for Web Service

Create Synonym

Open Synonym

Sample DataSupply values for PHONENUMBER and LICENSEKEY

Sample DataShow all fields returned by Web Service

Create Data FlowAdd input file

User Defined FunctionCleans up phone number

Add transformation Clean up phone number and assign name

Add synonym for Web Service

Join input file to Web ServiceOn PHONENUMBER and LICENSEKEY

Select Columns from Web Service

Test SQLShows “join” from input file to Web Service

Change Data Capture

When would you want to capture changes?

Why Change Data Capture?

Large source databases, small batch windowWant to only copy the changes Want near real-time updates

Need some way to detect what has changed…

Change Data CaptureHow to detect changes to database tables

Change the application? Track timestamp of changes, flag deletes Write changes to a separate table

Compare source to target? Effective for small tables

Poll the database for changes periodically? Detects additions only

Use database triggers? Developer adds to database…. or automatically generated Requires staging table

Change Data CaptureData Adapter to read from database logs

Read the database log… Proprietary formats Every database is different

New Data Adapter for database log tables No actual staging table required Synonym describes a view of database log for one table Provides automatic checkpoint processing

Change Data CaptureDatabase configuration

Platforms and databases supported ORACLE 10g and11g on UNIX and Windows UDB on UNIX and Windows DB2 on IBM zSeries and iSeries MS SQL Server 2008

DBA issues database specific commands to Configure database to use archiving or enable logging  Add logging or enable capture mode

Create additional synonym for table log records

Create Synonym For Table Log Records

Create Synonym for Table Log Records

Synonym created for Log TableThree CDC columns added

Synonym for Log TableLayout same as source table… plus three columns

CDC_OPER – Operation Type I = Insert U = Update D = Delete

CDC_TID – Transaction ID CDC_TIMES – Timestamp

Create Synonym for Log TableCDC Configuration

Polling intervalTimeoutCheckpoint processing

CDCConfiguration

POLLING – Log polling interval for LUW

TIMEOUT – Timeout interval polling for LUW

START – CHKPT after last checkpoint saved

CHECKPT_SAVE [YES|NO] – save last checkpoint in file

CHECKPT_FILE – Location and name of file

MAX_LUWS – Maximum number of LUWs processed

UDBSynonym for Log Table

Data FlowLog table as source

Column Selection

Target Transformations

Enabled for IUD ProcessingIUD control column identified

UDB CDCStart with Source and Target the same

Run program to update source

CDC Flow Log shows rows inserted / updated / deleted

Change Data CaptureSource and Target now have same rows

Change Data CaptureReprocessing

For testing or reprocessing…Start at specified timestamp

File Listener

Process files as they arrive in a directory… posted or copied or program output

Refactoring

7.6 Listener based Required creating and managing Listener Only Direct Load flows Only fixed length files, only character data Flow never completed… could not view log

could not send email or run process flow Could not schedule flows

7.7 Adapter based All specifications in synonym, simpler to set up Either SQL or Direct Load flows Any file type, any data type Flow completes when file or time limit reached…

Can send email or run flow or procedure on completion Can schedule flows as needed

File ListenerCreate Sample Data

File Listener ParametersSynonym - dmordfl

Data Allocation Parameters

Connection – Name of a connection for an FTP Server

Data Origin FILE – one time read LISTENER – process files as they arrive TAIL – future development

Identify File(s) Directory – Application Directory to poll for files Name – file name, wildcards allowed Extension – file type or extension

Listening Parameters and Read Limits

Listening Polling – interval in seconds Timeout – time in seconds. If no new files arrive end job

Read Limits Maxfiles – Maximum number of data files Maxrecs – Maximum number of records (only for TAIL)

Pre and Post Processing

Pre Processing - Pickup IMMEDIATE – As soon as files arrives TRIGGER – Wait for trigger file with

EXTENSION

Post Processing - DiscardDELETE ARCHIVE – Copy files to

DIRECTORY KEEP – Delete trigger only and keep file

File Name Field with Alias of INSTANCE

SQL or Direct Load Flow… looks like any other flow

File ListenerCreate directories listen and archive

File ListenerSubmit the Flow – Waits for TIMEOUT interval

File ListenerDrop the Files

File ListenerDrop the Files - within timeout interval (60 seconds)

File ListenerSample Data

Log shows number of rows processedFor all files

IWAF - iWay Adapter Framework

iWay Adapter FrameworkApplication Adapters

Data Adapters for some ERP systems New support for Application Adapters including

Salesforce.com MySAP Seibel Peoplesoft

So that DataMigrator can use Services Events

Configure IWAF Adapter

Add IWAF Adapter

Select IWAF Adapter

Add Connection for IWAFSalesforce Service

Salesforce AdapterCreate Synonym

Salesforce AdapterCreate Synonym

Salesforce AdapterCreate Synonym

Create Synonym for Salesforce Service

Salesforce ServiceSample Data

Salesforce EventSynonym

SalesforceData Flow

Salesforce.com

Salesforce Output table and log