Excel の Power Query 中級

In this chapter, you’ll delve into Power Query's data integration capabilities. You’ll master the art of appending queries to combine datasets seamlessly. You’ll also learn to merge datasets together, harnessing various join types to render datasets in multiple ways.

It’s all about customization in this chapter. You’ll learn the fundamentals of M language syntax, and how it underpins every transformation step in query development. You’ll leverage M to create custom conditional columns using logical operators to suit numerous scenarios. You’ll also delve into M table transformation expressions to create custom grouped index columns, enhancing your proficiency in advanced query design.

In this final chapter, you’ll delve into the Power Query Advanced Editor, unraveling M-Language syntax for code modification and debugging. You’ll explore M's built-in functions, and master best practices such as query grouping and dynamic filtering with parameters. Lastly, you’ll elevate your skills by crafting custom M formula language functions, unlocking advanced query design capabilities