What is the number of series with production code 503?
CREATE TABLE table_11630008_7 (series__number VARCHAR, production_code VARCHAR)
SELECT COUNT(series__number) FROM table_11630008_7 WHERE production_code = 503
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_11630008_7 (series__number VARCHAR, production_code VARCHAR) Question: What is the number of series with production code 503? [/INST] SELECT COUNT(series__number) FROM table_11630008_7 WHERE production_code = 503 </s>