CREATE TABLE Participates_in (stuid INT, actid INT)
CREATE TABLE Faculty (FacID INT, Lname VARCHAR, Fname VARCHAR, Rank VARCHAR, Sex VARCHAR, Phone INT, Room VARCHAR, Building VARCHAR)
CREATE TABLE Activity (actid INT, activity_name VARCHAR)
CREATE TABLE Student (StuID INT, LName VARCHAR, Fname VARCHAR, Age INT, Sex VARCHAR, Major INT, Advisor INT, city_code VARCHAR)
CREATE TABLE Faculty_Participates_in (FacID INT, actid INT)

Show all the faculty ranks and the number of students advised by each rank Visualize by bar chart, and sort in desc by the the total number .
SELECT Rank, COUNT(*) FROM Faculty AS T1 JOIN Student AS T2 ON T1.FacID = T2.Advisor GROUP BY T1.Rank ORDER BY COUNT(*) DESC
SELECT "Rank", COUNT(*) FROM "Faculty" AS "T1" JOIN "Student" AS "T2" ON "T1"."FacID" = "T2"."Advisor" GROUP BY "T1"."Rank" ORDER BY COUNT(*) DESC NULLS LAST