[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [R] [S] [T] [U] [V] [W] [Y] calling stored functions      restrictions  Cartesian products  2nd      inner joins  CASE expression     advantages      divide by zero errors      if-then-else functionality      optional updates      result sets, transforming      searched      selective aggregation      selective function execution      simple      state, controlling      UPDATE statement  case studies, subqueries  CAST function  CHAR datatype, TO_DATE function  characters     converting to dates      pattern-matching  child, hierarchical queries  Codd, Dr. E. F.  coding style  collection types     creating      relationships          nested tables          variable arrays      unnesting  collection unnesting  collections     modifying      querying  columns     aliases, inline views      composite, GROUP BY clause      GROUP BY clause, concatenated groupings      GROUPING SETS, concatenated groupings      hiding, WITH CHECK OPTION      LEVEL pseudocolumn      modifiable      names         set operations          table aliases and      range partitions      repeating names, GROUP BY clause      updating, errors  comparison operators     equality (=)      inequality (!=)      subqueries  component queries      order of execution  composite partitioning  compound queries      errors      NULL values  concatenated groupings      GROUPING SETS  conditional logic, CASE and DECODE examples  conditions     CASE expressions      components of      equality/inequality      inner joins          equi-joins compared to non-equi-joins      joins, new syntax and      matching      membership      pattern-matching      precedence      range      union compatibility      WHERE clause  CONNECT BY clause, hierarchical queries  constants, GROUP BY clause  containing statements  Coordinated Universal Time (UTC)  correlated subqueries  2nd  CREATE TABLE statement, object tables  CREATE TYPE BODY statement  CUBE keyword     group operations      partial  CUME_DIST analytic function  CURRENT ROW keywords     windowing functions  CURRENT_DATE function  CURRENT_TIMESTAMP function  customer table, SELECT statement example