Small. Fast. Reliable.
Choose any three.
*** 16,18 ****
--- 16,19 ----
  *: ORDER BY myfield ASC NULLS LAST (Oracle)
  *: CREATE TRIGGER [BEFORE | AFTER | INSTEAD OF] (Oracle)
  *: UPDATE with a FROM clause (not sure if this is standard, Sybase and Microsoft have it).
+ *: Multi-column IN clause (ie. SELECT * FROM tab WHERE (key1, key2) IN (SELECT...)