Name the maximum number of disc for bill gereghty
CREATE TABLE table_15430606_1 (no_disc INTEGER, directed_by VARCHAR)
SELECT MAX(no_disc) FROM table_15430606_1 WHERE directed_by = "Bill Gereghty"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_15430606_1 (no_disc INTEGER, directed_by VARCHAR) Question: Name the maximum number of disc for bill gereghty [/INST] SELECT MAX(no_disc) FROM table_15430606_1 WHERE directed_by = "Bill Gereghty" </s>