Talend Data Catalog incrementally profiles all tables or
files in the import scope and collects sample rows, when you enable the data profiling
during metadata import.
As data profiling and
metadata import processes share the data store connectivity and scope details, you do
not need to configure the data profiling connectivity explicitly.
Before you begin
- Make sure that the bridge of the data source supports data profiling.
-
You have
signed in as a user assigned to the Administrators or Application
Administrators group.
Procedure
-
Open the Import Options tab to enable the data profiling
and/or sampling options.
-
Select the Data Profiling check box and define the
number of rows to profile.
-
Select the Data Sampling check box and define the number
of rows for preview.
-
Save your changes.
-
To run the data profiling and/or sampling, do one of the following:
- Click the Import button to re-import the model
and go to the table or file's details page.
- Go to the table or file's details page and in the More
actions menu, click Generate Data Sampling
and Profiling.