After Connecting, you can execute a SQL statement and retrieve the results.

SELECT Procedure

You will need to obtain a cursor before executing any SQL. Once you have one, you can use the cursor's execute method.

cursor = cnxn.cursor()
cursor.execute("SELECT Worker_Reference_WID, Legal_Name_Last_Name FROM [CData].[Human_Resources].Workers WHERE Legal_Name_Last_Name = 'Morgan'")

Iterating over the Results

You can use a for loop to iterate over the rows of the resultset. Each row is presented as a tuple containing column values:

for (Worker_Reference_WID, Legal_Name_Last_Name) in cursor:
    print("Worker_Reference_WID = {}, Legal_Name_Last_Name = {}".format(Worker_Reference_WID, Legal_Name_Last_Name))