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The Weldopedia data dictionary

Quick, easy-to-grasp definitions of all the key data terms you need to know.

A data source is the original location a piece or set of data comes from, and the number of data sources companies have has been quickly increasing.
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A Common Table Expression (CTE) is a tool for keeping SQL queries simple. It creates a result set that exists only temporarily in a larger query.
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A data pipeline is a combination of data processes that move data from a source system to a target destination, usually through ELT or reverse-ETL.
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Data lineage is the mapping of how data flows from the source through its extraction, transformation, and loading into its end destination.
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A data warehouse is the central repository for a company’s data, bringing data from various sources into a single space for analysis and activation.
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Customer Acquisition Cost is a metric that determines the amount of money your company spends to acquire a customer.
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Data modelling is a process that brings certain pieces of data together into a metric or table that enables data analysis and activation.
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Reverse-ETL is a data activation process through which data is synced from your data warehouse into your work tools.
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ELT stands for Extract, Load, and Transform. It's a process by which data is replicated from a source to a destination (often a data warehouse).
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