CREATE TABLE table_77434 ("Year" FLOAT, "Competition" CLOB, "Venue" CLOB, "Position" CLOB, "Event" CLOB)

What is the Position for the European U23 Championships?
SELECT "Position" FROM table_77434 WHERE "Competition" = 'european u23 championships'
SELECT "Position" FROM "table_77434" WHERE "Competition" = 'european u23 championships'