what is the rating where the rank is 48?
CREATE TABLE table_15681686_4 (rating VARCHAR, rank__week_ VARCHAR)
SELECT rating / NULLIF(SHARE(18 - 49), 0) FROM table_15681686_4 WHERE rank__week_ = "48"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_15681686_4 (rating VARCHAR, rank__week_ VARCHAR) Question: what is the rating where the rank is 48? [/INST] SELECT rating / NULLIF(SHARE(18 - 49), 0) FROM table_15681686_4 WHERE rank__week_ = "48" </s>