You are creating a SQL Server Integration Services (SSIS) package to retrieve product data from two different sources. One source is hosted in a SQL Azure database. Each source contains products for d

Multicast sends one input to multiple output paths, which is the opposite of what is needed - it splits data, it does not combine it.

Merge Join performs a SQL-style join (inner, left outer, or full outer) on two sorted inputs to produce a combined column set per row, not a row union - it does not append rows from two sources into one stream.

Term Extraction identifies noun phrases from text columns and is a text-mining transformation unrelated to combining rows from multiple data sources.

Union All combines two or more input paths into a single output without requiring sorted inputs, making it ideal for appending rows from multiple sources including SQL Azure and on-premises databases into one destination stream.

Merge combines exactly two sorted input paths into a single sorted output, which also satisfies the requirement of unifying rows from two distributor sources before inserting into the destination table - as long as both inputs are sorted on a common key.