The pipelines you authored in Chapter 3 all have at least one thing in common: the values of all their properties are static – that is to say that they are determined at development time. In very many places, Azure Data Factory supports the use of dynamic property values – determined at runtime – through the use of expressions.
The main focus of this chapter is to introduce you to expressions, but you will also start to encounter more pipeline activities. The Copy data activity is sufficiently broad and important to have deserved ...