How many years was there a team that was part of the usisl pro league?
CREATE TABLE table_name_38 (year VARCHAR, league VARCHAR)
SELECT COUNT(year) FROM table_name_38 WHERE league = "usisl pro league"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_38 (year VARCHAR, league VARCHAR) Question: How many years was there a team that was part of the usisl pro league? [/INST] SELECT COUNT(year) FROM table_name_38 WHERE league = "usisl pro league" </s>