What is the highest value of area when capital is San Juan?
CREATE TABLE table_298550_1 (area__km²_ INTEGER, capital VARCHAR)
SELECT MAX(area__km²_) FROM table_298550_1 WHERE capital = "San Juan"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_298550_1 (area__km²_ INTEGER, capital VARCHAR) Question: What is the highest value of area when capital is San Juan? [/INST] SELECT MAX(area__km²_) FROM table_298550_1 WHERE capital = "San Juan" </s>