Description of the illustration query_block.eps

  [ with_clause ] SELECT [ hint ] [ { { DISTINCT | UNIQUE } | ALL } ] select_list
  [ FROM  { table_reference | join_clause | ( join_clause ) | inline_analytic_view } ]...     
  [ where_clause ]
  [ hierarchical_query_clause ]
  [ group_by_clause ]
  [ model_clause | window_clause ]