CREATE TABLE table_51494 ("Date" TEXT, "Visitor" TEXT, "Score" TEXT, "Home" TEXT, "Decision" TEXT, "Attendance" FLOAT, "Record" TEXT)

When did San Jose visit the St. Louis?
SELECT "Date" FROM table_51494 WHERE "Visitor" = 'san jose'
SELECT "Date" FROM "table_51494" WHERE "Visitor" = 'san jose'