What are all the distinct last names of all the engineers?
CREATE TABLE Maintenance_Engineers (last_name VARCHAR)
SELECT DISTINCT last_name FROM Maintenance_Engineers
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE Maintenance_Engineers (last_name VARCHAR) Question: What are all the distinct last names of all the engineers? [/INST] SELECT DISTINCT last_name FROM Maintenance_Engineers </s>