How many values were used to express the years at school of the Maryland team?
CREATE TABLE table_28744929_2 (years_at_school VARCHAR, team VARCHAR)
SELECT COUNT(years_at_school) FROM table_28744929_2 WHERE team = "Maryland"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_28744929_2 (years_at_school VARCHAR, team VARCHAR) Question: How many values were used to express the years at school of the Maryland team? [/INST] SELECT COUNT(years_at_school) FROM table_28744929_2 WHERE team = "Maryland" </s>