Best Methods of Building an ETL Process …
https://www.astronomer.io/blog/build-an-etl-process/
ETL Process Steps Copy raw data to have the original raw data at your disposal. Establish connectors and extract data from the source. Validate and filter data to keep data that have values in the expected ranges and reject any that do not. Transform data to convert data from the source format to the target format. Store the transformed data in a data warehouse or data lake. Load the transformed data into the target system. Schedule the ETL process to run at regular intervals. Step 1. Copy raw data Having the original raw data at your disposal can help you discover and solve problems faster. ... Create reference data: create a dataset that defines the set of permissible values your data may contain. ...
Copy raw data to have the original raw data at your disposal.
Establish connectors and extract data from the source.
Validate and filter data to keep data that have values in the expected ranges and reject any that do not.
Transform data to convert data from the source format to the target format.
Store the transformed data in a data warehouse or data lake.
Load the transformed data into the target system.
Schedule the ETL process to run at regular intervals.
Step 1. Copy raw data Having the original raw data at your disposal can help you discover and solve problems faster. ...
Create reference data: create a dataset that defines the set of permissible values your data may contain. ...
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