Loading Data Using the COPY Command
Understand how to load transformed data into data repositories using the COPY command. Explore the syntax, options, and considerations for handling incremental and full loads to avoid duplicates and maintain data integrity.
We'll cover the following...
We'll cover the following...
Generally, how we load the data depends on the output of the extracted data. Let’s discuss some considerations when loading data into the destination repository.
The COPY command
The COPY command is an extremely useful command for loading data. It’s one of the most efficient ways to load files (from the local machine or a file storage repository like S3 or Google Bucket) to a database/data warehouse. The COPY command can be executed as a SQL query, a command line statement, or as a Python script, and it appends data to the ...