How many episodes did Julie Martin wrote for the show If every episode has its own production code?
CREATE TABLE table_17623902_1 (production_code VARCHAR, written_by VARCHAR)
SELECT COUNT(production_code) FROM table_17623902_1 WHERE written_by = "Julie Martin"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_17623902_1 (production_code VARCHAR, written_by VARCHAR) Question: How many episodes did Julie Martin wrote for the show If every episode has its own production code? [/INST] SELECT COUNT(production_code) FROM table_17623902_1 WHERE written_by = "Julie Martin" </s>