[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [R] [S] [T] [U] [V] [W] [Y] hash anti-joins  hash partitions  hash semi-joins  HAVING clause      compared to WHERE clause      errors      scalar subqueries  hierarchical data representations  hierarchical queries  2nd      aggregating hierarchies      ascendancy      filtering      joins      leaf nodes, finding      LEVEL pseudocolumns      levels         listing          number of, finding      limitations of, overcoming      PRIOR operator      records, listing in hierarchical order      restrictions      root nodes         finding          finding parents          listing      START WITH clause      START WITH...CONNECT BY clause      subtrees, deleting      terminology      views  hierarchical trees, traversing  horizontal partitioning  hypothetical analytic functions