Popularly asked ETL interview questions in 2025: 1. Explain what the ETL testing operations include. 2. How do you handle slowly changing dimension?
ETL testing is a concept which can be applied to different tools and databases in information management industry.The objective of ETL testing is to assure that the data that has been loaded from a source to destination after business transformation is accurate.It also involves the verification of...
ETL process allows sample data comparison between the source and the target system. ETL process can perform complex transformations and requires the extra area to store the data. ETL helps to Migrate data into a Data Warehouse. Convert to the various formats and types to adhere to one consistent...
Build, monitor, and schedule data pipelines. Turn raw, complex data into report-ready analytics and business intelligence. Centralize data from all your databases, applications, and more Turn raw complex data into a report ready analytics and business intelligence No code or SQL scripts required. F...
Xplenty lets users perform complex data preparation functions by using its rich expression language. It provides an API component for advanced customization. 10. Cloudera Cloudera is a cloud platform that uses analytics and machine learning to yield insights from data. It allows you to fetch, proces...
However the ETL is indeed complex as the A model. Because while the current row will be from current date to- infinity. The previous row has to be retired to from date to todays date -1. This kind of ETL coding also creates lots of testing issues as you want to make sure that for...
[Related Article:ETL testing interview Questions and Answers] 13. Informatica PowerCenter It is an ETL tool released by the Informatica Corporation. This tool provides capabilities for fetching and connecting data from various data sources. Some Important Features of Informatica PowerCenter are as follows...
The ETL testing course videos contain Database Testing, Data warehouse Testing, ETL Testing Scenarios, Data checks with SQL and many more complex topics explained in a detailed manner which will be helpful to compete with other Organizations. Usually ETL Testing verifies whether the ETL process is...
Implementing complex ETL requirements using any tool like Informatica, Talend, ODI, Abinitio etc So, if you are looking for a short help or need a long term support on any Data related to technology including ETL, Data Visualization or Data Analytics, get in touch with us to understand how...
It has become popular among data scientists, machine learning engineers, and AI practitioners for its ability to orchestrate complex workflows, manage dependencies between tasks, retry failed tasks, and provide extensive logging.Airflow ETL refers to the use of Apache Airflow to manage ETL processes...