extract transform and load etl processes

Load: The final stage involves loading the newly transformed data into the chosen destination, such as a database system. This can include mapping data from each source to the correct fields in the CRM system, standardizing formats (such as phone numbers or addresses), and resolving any data conflicts or duplicates. The extracted data is transformed into a consistent format suitable for analysis and loading into the final destination. Transform: The second stage, transformation, is where the magic happens. This could include extracting customer contact information and order history from the sales database, customer support tickets from the customer service system, and email campaign data from the marketing automation tool. It consists of three stages:Įxtract: The first step is to perform data extraction on the necessary data from disparate sources and bring it into a central repository for further processing. While each of these sources provides valuable data, the overall value is compromised because the information is scattered and in different formats. They have a sales database that archives transaction records, a customer service system that stores the details of customer inquiries and complaints, and a marketing automation tool that tracks how customers engage with various campaigns. At first, the term may seem rather technical, but we can break it down and make it more understandable by using a real-world example.Ĭonsider a large retail organization that has been collecting customer data across multiple platforms. The ETL process-which stands for Extract, Transform, Load-is a three-step process that is fundamental to data warehousing. The ABCs of ETL: What is the ETL Process in Data In this article, we will pull back the curtain on the ETL process and unpack each of its stages to provide a detailed understanding of its intricacies and equip you with the knowledge you need to effectively harness the power of this essential process. Among the various data management processes, one emerges as particularly important: the extract, transform, load (ETL) process. Understanding the process of managing that data specifically, how it's collected, processed, and used for business intelligence-is critical. Lastly, data can be loaded in real time or in scheduled batches.In the digital era, data is a powerful tool that can propel businesses forward. Thereafter, data is more likely to be loaded in incremental batches as it changes or new data becomes available. If this is the first time loading the data into this particular end source, it’s likely that all of the source data will be loaded at once. Once the data is streamlined, it’s ready to transfer into the end data warehouse. Step 3: Load the data into the target database Resolving inconsistencies and missing values.Customer relationship management (CRM) systemsįrom its original raw form, the data goes through several processes to prepare for combination with data from other sources.Existing databases including data storage platforms and data warehouses.The data can come from structured and unstructured sources, including: Step 1: Extract the data from its original sources

Extract transform and load etl processes