Show all cities and corresponding number of students.
CREATE TABLE Student (city_code VARCHAR)
SELECT city_code, COUNT(*) FROM Student GROUP BY city_code
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE Student (city_code VARCHAR) Question: Show all cities and corresponding number of students. [/INST] SELECT city_code, COUNT(*) FROM Student GROUP BY city_code </s>