How many entries are shown for date of successors formal installation where successor is john w. walker (dr)?
CREATE TABLE table_225099_3 (date_of_successors_formal_installation VARCHAR, successor VARCHAR)
SELECT COUNT(date_of_successors_formal_installation) FROM table_225099_3 WHERE successor = "John W. Walker (DR)"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_225099_3 (date_of_successors_formal_installation VARCHAR, successor VARCHAR) Question: How many entries are shown for date of successors formal installation where successor is john w. walker (dr)? [/INST] SELECT COUNT(date_of_successors_formal_installation) FROM table_225099_3 WHERE successor = "John W. Walker (DR)" </s>