Answer: PUT

The question asks which command is used to load unstructured data files into a Snowflake internal stage. The PUT command is specifically designed for uploading files from a local machine to a Snowflake stage (internal or external). The community discussion strongly supports this, with the top-voted comment (7 upvotes) clearly explaining that PUT copies files from local folders into Snowflake internal stages, while COPY INTO is for loading data from staged files into tables. Other comments that initially suggested D (COPY INTO) were corrected to A after realizing the distinction between uploading files to a stage (PUT) versus loading data from a stage to a table (COPY INTO). GET is for downloading files from a stage, and LIST is for viewing stage contents, neither of which upload data.

Author: LeetQuiz Editorial Team