What is the total erp w of class c3, which has a frequency mhz less than 89.9?
CREATE TABLE table_name_58 (erp_w VARCHAR, class VARCHAR, frequency_mhz VARCHAR)
SELECT COUNT(erp_w) FROM table_name_58 WHERE class = "c3" AND frequency_mhz < 89.9
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_58 (erp_w VARCHAR, class VARCHAR, frequency_mhz VARCHAR) Question: What is the total erp w of class c3, which has a frequency mhz less than 89.9? [/INST] SELECT COUNT(erp_w) FROM table_name_58 WHERE class = "c3" AND frequency_mhz < 89.9 </s>