CREATE TABLE table_203_7 (id NUMBER, "pos." NUMBER, "artist" CLOB, "single" CLOB, "year" NUMBER, "sales" NUMBER, "peak" NUMBER)

how many singles did celine dion sing ?
SELECT COUNT("single") FROM table_203_7 WHERE "artist" = 'celine dion'
SELECT COUNT("single") FROM "table_203_7" WHERE "artist" = 'celine dion'