Show countries where a singer above age 40 and a singer below 30 are from.
CREATE TABLE singer (country VARCHAR, age INTEGER)
SELECT country FROM singer WHERE age > 40 INTERSECT SELECT country FROM singer WHERE age < 30
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE singer (country VARCHAR, age INTEGER) Question: Show countries where a singer above age 40 and a singer below 30 are from. [/INST] SELECT country FROM singer WHERE age > 40 INTERSECT SELECT country FROM singer WHERE age < 30 </s>