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Leap from ELT Over Traditional ETL in the Cloud Era

Without a doubt, the cloud is the new analytics and data platform. As more and more organizations are moving large amounts of data to the cloud for analytics & AI transformation, the need to maintain this data is influencing & revolutionizing.

It modifies how raw data is transferred from the source device to a cloud architecture, leading to a shift from the usual method of shifting data over Extract, Transform, Load (ETL) to Extract, Load, Transform (ELT).

Business success is highly correlated with data-driven decision-making. Research from Capgemini shows that data-powered businesses generate 70% higher revenue per employee & 22% more profit than their non-data competitors. However, a minimum of 50% of businesses can use data effectively for strategic planning.

However, companies can bridge this gap and increase the value of their data by switching to a seamless data analysis pipeline & can easily extract, load, and transform (ELT) rather than the conventional methods of ETL.

ELT vs. ETL - The Concept

The ETL model is an example of a legacy system powered by pricey, rigid license structures with low computational horsepower and no usage-based pricing. The cloud price model has a lot to offer consumers of data.

Due to capacity metering, lower licensing costs associated with using a single integrated data platform, and separating the compute and operating system layer from the application and data layer, users can access unlimited processing capacity & scalability at a relatively lower cost range.


Even when the volume requirement has decreased, on-premises older systems compel customers to pay for peak capacity utilization or changes. It’s a major factor in the difficulty of managing legacy systems cheaply, which has led to significant migration to the cloud, where you can “rent” space and only pay for the time that computing power is used.

Importing data directly from the cloud platform is far less expensive than first converting it. When comparing ETL to ELT, comprehending the meaning of “transform” is a crucial nuance. A technological procedure to change data before loading it to the cloud is referred to as a “transform” in the ETL model. The ELT approach, however, is a suitable transition to cloud-native languages.

It defines a method for permanently transferring data to the cloud, which remains objective and may be used as needed. With little modification, source feeds are brought directly into the cloud architecture, where they can be changed as part of the ELT process.

Factors driving the transformation from ETL to ELT

ELT allows the creation of an agile, integrated cloud data pipeline perfect for large data. You can use cloud-managed services to ingest data, apply cloud-hosted transformation scripts, and then put it onto your chosen data dashboard makes ELT particularly well suited to the cloud.

Here are the five main justifications for switching from ETL to ELT.

The use of semi-structured data, like email and text messages, and unstructured data, such as photos, audio, and video, is growing significantly, which slows down the ETL process. Congestion in the ETL process results from the time and computing resources required to transform the data before loading.

Cloud computing is a far more effective way to transform unstructured data. When using ETL, loading frequently requires waiting until all transformations for an end-use case have been finished.

Additionally, before the transformation, you must be aware of all the end-use scenarios for that data. You may manage unstructured data more flexibly and agilely by storing it in the cloud, where you can manipulate it when new business use cases or apps emerge.

The ELT paradigm encourages businesses to update their Enterprise Data Warehouse (EDW) & Enterprise Data Lake (EDL) areas using the cloud’s strength, affordability, and capacity. It is especially true for users that manage enormous amounts of data on legacy platforms, where your bandwidth is constrained.

Migrating to the cloud with a cloud migration strategy and processing millions of data records in real-time has a compelling advantage. The cloud offers the processing capacity to modify the code used to manage legacy ETLs & the continual intake and mapping of the data, thanks to its limitless compute power.

Consumers can move their data to the cloud using the ELT approach with hardly any modification, ushering in the usage of cloud tools and cloud security services to alter that data afterward.

Cloud data platforms offer excellent low/no-code development, self-service, and out-of-the-box capabilities, making it simple to integrate new and varied data sources for business-use apps. Because the cloud offers a single integrated platform for data ingestion, data integration, and data quality, complexity is decreased when employing ELT.

Modern business intelligence and analytics solutions are available to most firms that would like to increase the value of their data. These tools perform significantly worse when used with legacy databases.

It’s partly due to the higher capacity cost needed to run them but mostly because contemporary tools created with contemporary languages perform better with cloud-based data and code. In the present cloud migration context, data analytics and BI tools are designed to be maximized using cloud-native data.

Users, including analysts and developers, have no visibility into the source or integrity of the data when it is modified and subsequently imported to the cloud data platform. They cannot provide DevOps insight if there is a problem with the code or if the transformation pipeline is broken without visibility into the logic used throughout the transformation process.

Leaping to ELT

The transition from ETL to ELT will happen with the exponential growth in cloud-native architectural expenditure. Additionally, there will be a considerable improvement in the tools, procedures, skills, and capacity to shift to the cloud more quickly and effectively. In contrast, organizations employing old systems would face significantly higher risks.

We anticipate the transition to ELT to be almost complete in the next years as businesses realize they must adopt an ELT strategy to benefit from cloud architecture fully. Tech Mobius offers sophisticated data-driven digital transformation solutions with a thorough grasp of the client’s business and the key issues that are currently being faced in the industry.

We can provide pre-built accelerators for quick and efficient deployments as you migrate to the cloud. Do you think the shift to ELT will benefit you in the future? If yes, make the ELT transformation with a robust cloud migration strategy with Techmobius!

Please feel free to get in touch with us !