Update solution.sql

Author: poulamicode77

HackerRank/Solve SQL/2.Revising the Select Query II/solution.sql

@@ -4,4 +4,4 @@
     2. The AS keyword causes errors, so follow this convention: "Select t.Field From table1 t" instead of "select t.Field From table1 AS t"
     3. Type your code immediately after comment. Don't leave any blank line.
 */
-SELECT NAME FROM CITY WHERE COUNTRYCODEM = "USA" AND POPULATION > 120000;
+SELECT NAME FROM CITY WHERE COUNTRYCODE = "USA" AND POPULATION >120000;