CREATE TABLE table_204_324 (id DECIMAL, "team 1" TEXT, "agg." TEXT, "team 2" TEXT, "1st leg" TEXT, "2nd leg" TEXT)

how many teams played in the 2011 caf u-23 championship qualification ?
SELECT COUNT("team 1") + COUNT("team 2") FROM table_204_324
SELECT COUNT("team 1") + COUNT("team 2") FROM "table_204_324"