DataStage Tutorial for Beginners  

What is Datastage

Datastage is an ETL tool which evokes data, measure and transforms data from source to destination, these sources may include relational database, sequential files, archives, external data files and enterprises etc., Datastage promotes business report by giving quality data to aid in achieving business knowledge

Datastage is used as an interface among different systems. It takes care of extracting the data, translating data, and loading data from source to destination. Datastage was launched by VMark in the mid-’90s, it was renamed as IBM WebSphere DataStage in 2005 after IBM procured Datastage and later it was renamed as IBM Infosphere which is the latest version of DataStage.

There are few more important versions of DataStage in the market they are:

  • Server edition
  • Enterprise edition
  • Peoplesoft DataStage

Overview of DataStage

DataStage leverages high-performance identical framework, available in the cloud, The scalable platform gives extensive metadata administration and enterprise connectivity. It combines heterogeneous data, including big data to rest or big data in motion, on both distributed plus mainframe platforms.  

  • It can combine data from different data sources 

DataStage can integrate all the information from different sources. 

  • It performs data validation rules:

Datastage checks the quality and accuracy of source data before importing it to the target system

  • Maintains metadata and analyse it:

metadata is all about data transfer, data browsing and data description and Datastage analyse this transferred data efficiently.  

Components of DataStage:

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There are two different components in Datastage they are 

  • Server components
  • Client components

Server components:

  • Repository: A central repository includes all the information needed to build either data mart or data warehouse.
  • Datastage server: Runs executable projects, under the concerning tool of the DataStage Director, that extract, convert, and also load data within a data warehouse.
  • Datastage package installer: A client interface utilised to install packaged DataStage projects and plug-ins.

Client components:

  • Datastage manager: It is a graphical tool that allows us to see and control the contents regarding the DataStage Repository. DataStage Manager permits us to browse, import, and edit metadata on targets, transformations including data sources.
  • Datastage designer: DataStage Designer is utilised to create projects by generating a graphical design that represents the transformation of data flows of the data source across the destination warehouse.
  • Datastage director: The DataStage Director permits us to monitor, run and also control jobs created in the DataStage Designer.
  • Datastage administrator: The DataStage Administrator permits us to assort DataStage users, control the removal from the Repository, also, if NLS is mounted, install including managing locales plus maps. 

Advantages of using DataStage:

  • Authorizes high-performance batch also real-time data extraction, transforming and loading.
  • Provides built-in scalability to future-proof your architecture.
  • Assists developers to be extra efficient and productive throughout automation and also reuse of common development responsibilities.
  • The specific powerful, industry-leading parallel engine gives built-in scalability to future-proof your design using a design-once-and deploy-anywhere way. 
  • InfoSphere DataStage 8.7 gives superior connectivity composed for more popular performance also more reliable exploitation of freshest hardware than more prime options available in InfoSphere DataStage Server
  • Effortlessly scale to meet critical workloads

Key features of Datastage:

  • Enhance your enterprise ETL End-to-end ETL skills permit you to learn, cleanse, monitor, transform and transfer your data. Connect the gap between business including IT. Assuring the data that pushes your business also strategic initiatives – of big data including analytics to understand data management also data warehousing – is trusted, steady, shareable and also governed.
  • Solve complicated big data problems Gives scalability and high performance to quick access to trusted data. Applying the massively parallel processing engine to run natively within Hadoop also accesses data wherever it resides. 
  • Uses the power of Hadoop Run connectivity, transform and data delivery characteristics natively within Hadoop. Get clear access to HDFS files in multiple formats also character sets, including security characteristics such as Kerberos and secure gateways. 
  • Integrating cloud applications Gives fast and smooth data integration toward cloud environments. Establishes direct integration including Amazon Simple Storage System (S3) to load data of and into that cloud. Earlier data is integrated inside S3, this can remain integrated beside other cloud database technologies. The solution additionally includes a hierarchical stage that promotes communication with REST application APIs, facilitating care for XML and JavaScript Object Notation (JSON) messages.
  • Flexpoint licensing Increase way to the centralised governance & integration platform contributions through flex point licensing. It also maintains your quickly evolving business requirements by providing flexible access over the contributions added to the platform.

About DataStage developers:

Datastage developers are also distinguished as an ETL Developer, a Datastage Developer supervises technology design also building, including the testing and implementation of multiple tools plus solutions. Datastage Developers make a report of specifications, provide estimations, also set up Datastage projects according to over requirements.

Top 10 skills required for a Datastage developer

Rank  Skill
1 Datastage
2 Data warehouse
3 SQL
4 Unix
5 Database 
6 DB2
7 Parallel jobs
8 Business requirements
9 Agreggator 
10 Test Cases

Datastage Recognize those design changes in DataStage code also SQL optimization concerning the production problems based upon the tickets opened.

Data warehouse Works upon programs to schedule Data loading and changes utilising Data Stage of the legacy system also Data Warehouse over Oracle 9i.

SQL Executes quality standards testing upon result tables & related tables utilizing SQL Server Business Intelligence Studio.

Unix Advances UNIX shell script to run every IBM InfoSphere DataStage job, carry files to the various landing zone.

Database Designs and develops database tables needed to accompany the important constraints to support business rules.

DB2 Workes beside DS Admin upon setting DB2 Enterprise stage to which can be utilised to load high amounts of data.

Parallel jobs Develop DataStage parallel jobs to store data of sequential files, flat files including DB2 Server.

Business requirements Associates in collecting business conditions and give out a suitable data Model for DataMart plus Data Warehouse. 

Aggregator Uses different stages of Parallel Jobs so as an aggregator, sort, transformer, sequential file including hashed file.

Test cases Prepare test cases to Unit testing also coordinates each review of the equivalent by Business Analysts.

Duties and Responsibilities of a DataStage developer:

  • Provide professional support to the team and also evaluate all codes
  • Develops and also executes tests on all data stage jobs
  • Monitor whole DataStage jobs also contribute production support
  • ELT job versions are designed and also analyzed by Datastage developers
  • Examine work and fulfil all business laws
  • Plan and schedule all the tasks of Datastage jobs
  • Review all functional business specifications and applications
  • Plan different block diagrams and also logic flowcharts
  • Develop different computer software designs
  • Documenting all user-level processes and program levels
  • Examine performance and also monitor work including capacity planning
  • Design and manage the multiple data warehouses
  • Correlate with crew members
  • Administrate every offshore and also onsite work packages 

Conclusion

Datastage is one of the best tools which is used to measure and transform data through different systems, and when it comes to the question of why to learn Datastage?  Then my answer will be, Notwithstanding many other ETL tools in the market, Datastage implies as one of the powerful data warehousing tools. The tool is flawlessly fit for people who want to become data analysts and data science professionals, business intelligence experts, etc.