CREATE TABLE table_9894 ("Ship" CLOB, "Guns" CLOB, "Commander" CLOB, "Complement" FLOAT, "Notes" CLOB)

What is the sum of complement commander Valkenburg received?
SELECT COUNT("Complement") FROM table_9894 WHERE "Commander" = 'valkenburg'
SELECT COUNT("Complement") FROM "table_9894" WHERE "Commander" = 'valkenburg'