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Dwh tester skills for your resume and career

Updated January 8, 2025
5 min read
Below we've compiled a list of the most critical dwh tester skills. We ranked the top skills for dwh testers based on the percentage of resumes they appeared on. For example, 6.0% of dwh tester resumes contained etl processes as a skill. Continue reading to find out what skills a dwh tester needs to be successful in the workplace.

15 dwh tester skills for your resume and career

1. ETL Processes

Here's how dwh testers use etl processes:
  • Collected requirements and tested several business ETL processes.
  • Developed ETL processes to load data from different source systems such as Oracle and Flat Files into target systems i.e.

2. PL/SQL

Here's how dwh testers use pl/sql:
  • Imported data using source analyzer and exported data using Target analyzer designed and developed Oracle PL/SQL procedures.
  • Developed Oracle PL/SQL code to write DDL/DML statements and Stored Procedures/functions/packages for data transformation and manipulation.

3. Manual Test Cases

Here's how dwh testers use manual test cases:
  • Identified the initial setup, input data, appropriate steps and the expected responses in the manual test cases.
  • Created manual Test Cases in HP QC/HP ALM for various User Stories based on Release and Sprint Plan.

4. Unix

UNIX is a computer operating system that was first created in the 1960s and has been constantly updated since then. The operating system refers to the set of programs that enable a machine to function. It is a multi-user, multi-tasking device that works on computers, laptops, and servers. UNIX systems also have a graphical user interface (GUI), similar to Microsoft Windows, that makes it simple to use.

Here's how dwh testers use unix:
  • Developed UNIX scripts and AUTOSYS scripts to load extract files in to staging tables using solder.
  • Assisted in promotion of ETL code and UNIX Shell scripts from UAT to Production.

5. SQL Server

Here's how dwh testers use sql server:
  • Validated the interfaced data from various environments into SSQL Server database using SSIS packages.
  • Developed external mapping to transfer data from SQL Server database to Oracle Data Warehouse.

6. Toad

Toad is software that manages non-relational and relational databases that database analysts, developers, and database administrators use. Toad helps in minimizing the cuts in delivery timelines of projects. It also helps in maximizing the investment made by users in the field of data technology by automating all the processes.

Here's how dwh testers use toad:
  • Performed Database Testing to validate database using TOAD, Checked Data Integrity and Constraints by SQL Queries.
  • Performed Backend testing to validate and analyze data using TOAD and added SQL queries to Test cases where necessary.

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7. Test Scripts

Test scripts validate the quality of the software or app being tested. An effective test script has all the steps to be taken to use a software program as well as the ending result of each step.

Here's how dwh testers use test scripts:
  • Used SQL Developer to develop and execute test scripts in SQL, to validate the test cases.
  • Developed and executed test cases and test scripts.

8. Data Warehouse

Data warehouse, often abbreviated as either DW or DWH is a system used in computing for data analysis as well reporting. The DW is also considered to be an integral component of business intelligence as they also provide storage facilities for both real-time and historical data. ETL and ELT are the two driving forces behind a data warehouse system.

Here's how dwh testers use data warehouse:
  • Performed extensive data validations against Data Warehouse Logging and tracking defects on a release basis using HP Quality Center.
  • Devised and constructed high-performance ETL processes that load a normalized operational data store and dimensional data warehouse.

9. Regression

Here's how dwh testers use regression:
  • Conducted Black Box (Functionality Testing), User Acceptance, and Regression testing.
  • Created Test plans for Unit Testing, Integration and Regression and executed successfully.

10. ETL Informatica

Here's how dwh testers use etl informatica:
  • Tested several Data warehouse ETL Informatica Mappings to validate the business conditions.
  • Tested and developed the mapping for extracting, cleansing, transforming, integrating, and loading data using ETL Informatica.

11. Extraction

Here's how dwh testers use extraction:
  • Validated the source database, target database, data extraction, data transformation and data loading.
  • Participated in multiple engagements with client organizations to design and develop solutions to cater to their data extraction needs.

12. Test Data

Here's how dwh testers use test data:
  • Created test data for positive and negative test scenarios.
  • Worked in an Agile technology with Scrum Internal creation of test data by converting 4010 EDI files into 5010 format.

13. Cognos

Here's how dwh testers use cognos:
  • Tested several business reports developed in Cognos.
  • Worked on generation of Cognos reports and validating the EDW reports against source & target data.

14. Business Rules

Here's how dwh testers use business rules:
  • Interacted with the Business Requirement and Client Advocate teams to understand, test and compare old and new business rules.
  • Tested both Initial loading, Delta Processing and Incremental loading for various business rules.

15. Data Quality

Here's how dwh testers use data quality:
  • Used Test Director to Report bugs and Data Quality Issues on each check sum and field validation Tests completed.
  • Examine sample record sets for consistency, data corruption and over all data quality.
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List of dwh tester skills to add to your resume

Dwh tester skills

The most important skills for a dwh tester resume and required skills for a dwh tester to have include:

  • ETL Processes
  • PL/SQL
  • Manual Test Cases
  • Unix
  • SQL Server
  • Toad
  • Test Scripts
  • Data Warehouse
  • Regression
  • ETL Informatica
  • Extraction
  • Test Data
  • Cognos
  • Business Rules
  • Data Quality
  • QA
  • XML
  • UAT
  • Test Strategy
  • Windows XP
  • Data Validation
  • Schema
  • End Testing
  • Business User
  • Technical Specifications
  • Data Warehousing
  • Business Analysis
  • HP Quality
  • Oracle 10G
  • Test Results
  • Test Scenarios
  • Source Systems
  • UI
  • Data Integrity
  • AB Initio
  • User Acceptance
  • Business Analysts
  • Ssis
  • Java
  • Mainframe
  • User Interface
  • Oracle Sql
  • System Defects
  • KPI
  • Traceability Matrix
  • Korn Shell

Updated January 8, 2025

Zippia Research Team
Zippia Team

Editorial Staff

The Zippia Research Team has spent countless hours reviewing resumes, job postings, and government data to determine what goes into getting a job in each phase of life. Professional writers and data scientists comprise the Zippia Research Team.

Updated January 8, 2025

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