CREATE TABLE table_204_929 (id NUMBER, "location" CLOB, "name of mill and\ grid reference" CLOB, "type" CLOB, "maps" CLOB, "first mention\ or built" CLOB, "last mention\ or demise" NUMBER)

how man c windmills have there been ?
SELECT COUNT(*) FROM table_204_929
SELECT COUNT(*) FROM "table_204_929"