CREATE TABLE table_28292 ("Browser" CLOB, "Operating system" CLOB, "Latest stable release" CLOB, "Theora" CLOB, "H.264" CLOB, "VP8  (  WebM  ) " CLOB, "VP9  (  WebM  ) " CLOB)

When theora is 2.3, how much is the h.264?
SELECT "H.264" FROM table_28292 WHERE "Theora" = '2.3'
SELECT "H.264" FROM "table_28292" WHERE "Theora" = '2.3'