Lesson 2 Lab Answers
If you use a most recent version of the data set from Toronto open data portal your answer might differ.
Question 1: How many projects exist for the postal code M1G?
Question 2: In the postal code M1G, how permits type are there for “Plumbing”?
Question 3: What is the longest text for “Structure_Type” and how many characters does it contains?
Answer: College/Trade/Tech School/Training Cent. with 41 characters
Question 4: How many conditional permit (permits type) have no structure type defined?
Question 5: What is the permit number of the oldest application?
Answer: 86 251028 BLD
Question 6: How much does the most expensive project cost?
Question 7: How many unique permit number there is new buildings (column work) only with more than 100 dwelling units
Answer: 27 (06 105302 BLD and 10 224245 BLD are listed twice)
If select all new building 131 unique permit for 143 rows
Question 8: When was the latest permit issued?
Question 9: Which day received the most applications
Answer: 2012/10/09 with 313 applications (use text facet, sort by count)
Question 10 : Look for the permit number 00 137770 CMB. Then sort by permit number (text a -z) and then with the lowest revision number first and reorder row permanently. What happen
Answer: lowest revision number is not listed before position in 23 instead of 24.