what is the total rank on airdate march 30, 2011?
CREATE TABLE table_27987623_4 (rank_timeslot_ VARCHAR, airdate VARCHAR)
SELECT COUNT(rank_timeslot_) FROM table_27987623_4 WHERE airdate = "March 30, 2011"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_27987623_4 (rank_timeslot_ VARCHAR, airdate VARCHAR) Question: what is the total rank on airdate march 30, 2011? [/INST] SELECT COUNT(rank_timeslot_) FROM table_27987623_4 WHERE airdate = "March 30, 2011" </s>