Answer: PUT

The question asks which command is used to load data into an internal stage. Based on Snowflake documentation and the community discussion, the PUT command is specifically designed to upload files from a local file system to an internal stage. While COPY is mentioned in some comments, it is primarily used for loading data from a stage into a Snowflake table (not into the stage itself) or for unloading data from a table into a stage. The community discussion shows a consensus favoring D (PUT), with the highest upvoted comment (14 upvotes) and multiple references to official documentation confirming PUT as the correct command for this purpose. Comments suggesting B (COPY) are less suitable because COPY is not the direct command for uploading data to a stage from an external source like a local system.

Author: LeetQuiz Editorial Team