I'm new to data warehousing and working with data in general. In a couple of articles and job postings I have seen the acronym ETL. For example, they're searching for an ETL developer with experience in SSIS or Azure Data Factory (ADF). What exactly does ETL mean? Solution What is ET...
For example, there is a retail store which has different departments like sales, marketing, logistics etc. Each of them is handling the customer information independently, and the way they store that data is quite different. The sales department have stored it by customer’s name, while marketin...
While transforming the data in the ETL pipeline, it has to go through multiple steps of transformations in order to achieve the final result. For example, when the ETL receives the raw data from the source, there may be operations applied to it like filtering, sorting, merging, or splitting...
The name "Christian" appears twice with two different ID's. This should never happen in dimensions but it might be the case that we have other columns that makes the row unique e.g. different last names. But in the example above, I intentionally wanted to have duplicate values for the p...
A template responsible for setting up AWS Glue resources (glue-resources.yaml). For our example ETL flow, the sample template creates three AWS Glue jobs: PSD, PMD, and JMSD. The scripts are pulled by AWS CloudFormation from an Amazon S3 bucket that you own. ...
In the diagram above, there are several tasks within the control flow, one of which is a data flow task. One of the tasks is nested within a container. Containers can be used to provide structure to tasks, providing a unit of work. One such example is for repeating elements within a ...
Flow into Your Batch File The final step in creating a Flow is to export it for execution. This process writes the steps necessary to execute each block of the Flow into a batch file. If the batch file for your flow has not yet been created, then: Right-click in the diagram for ...
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the master package can simply re-execute the failed component. For example, let us consider that theSales.dtsxis being executed by themasterpackage, however, due to some issues theextractcomponent of the package is executed successfully but thetransformandloadcomponents fail. This incident is being...
The flow diagrams depicted herein are just one example. There may be many variations to this diagram or the steps (or operations) described therein without departing from the spirit of the invention. For instance, the steps may be performed in a differing order or steps may be added, deleted...