Data blending is a domain-specific mechanism in Business Intelligence defined by combining data from multiple sources at the visualization level rather than during data source creation. Theoretically, this process operates via an intrinsic left join operation that retains all records from a designated primary data source while matching only corresponding records from secondary sources based on specified join keys. This concept distinguishes itself within the broader discipline of data integration by enforcing strict separation between physical query execution and logical schema merging, enabling dynamic reassignment of primary/secondary roles per worksheet without altering underlying dataset properties.
Data blending is a domain-specific mechanism in Business Intelligence defined by combining data from multiple sources at the visualization level rather than during data source creation. Theoretically…