You can load data into Studio by either creating a new data set or updating a data set.
There are four data loading operations:
- Loading a file to create a new data set.
- Loading a JDBC data source to create a new data set.
- Reloading a file to update the data set.
- Reloading a JDBC data source to update the data set.
Here is the typical workflow of loading a data set and reloading it in the Catalog before you add it to a project:
![A workflow diagram of load and reload. A workflow diagram of load and reload.](img/ds_workflow_reloading_data_in_catalog.png)
In this workflow, the following actions take place:
- You load a data set from a file or JDBC data source. This is the initial load of the data set into the Catalog.
- Reload the data set as necessary.
- Explore the data and add it to a project if you want to use Transform and Discover. If you transform or fully load a data set in a project, the data set is now private to the project.