Show the opening year in whcih at least two churches opened.
CREATE TABLE church (open_date VARCHAR)
SELECT open_date FROM church GROUP BY open_date HAVING COUNT(*) >= 2
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE church (open_date VARCHAR) Question: Show the opening year in whcih at least two churches opened. [/INST] SELECT open_date FROM church GROUP BY open_date HAVING COUNT(*) >= 2 </s>