How do you get to know the information about the data of column statistically?

To understand the data sample on data preview screen, you can use the columnn information function that would show the number of unique values in your data along with their count. Following are the steps:

Step 1: When you create a new connection, you will get to Preview Screen.

Step 2: On the preview screen, on the top of each column, you get a symbol " i " which give you the information about the values in the column statistically.