How many celebrities had an 18October2007 Original air Date?
CREATE TABLE table_11642945_1 (celebrity VARCHAR, original_air_date VARCHAR)
SELECT COUNT(celebrity) FROM table_11642945_1 WHERE original_air_date = "18October2007"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_11642945_1 (celebrity VARCHAR, original_air_date VARCHAR) Question: How many celebrities had an 18October2007 Original air Date? [/INST] SELECT COUNT(celebrity) FROM table_11642945_1 WHERE original_air_date = "18October2007" </s>