Update see-quel script

Author: budiong054

0x0D-SQL_introduction/14-average.sql

@@ -1,4 +1,4 @@
 -- This script computes the score average of all records in the table
 -- ``second_table`` of the database ``hbtn_0c_0`` in your MySQL server
-SELECT AVG(score)
+SELECT AVG(score) AS average
 FROM second_table;

0x0D-SQL_introduction/15-groups.sql

@@ -2,4 +2,5 @@
 -- ``second_table`` of the database ``hbtn_0c_0`` in your MySQL server
 SELECT score, COUNT(*) AS number
 FROM second_table
-GROUP BY score;
+GROUP BY score
+ORDER BY score DESC;