[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [R] [S] [T] [U] [V] [W] [Y] global indexes  GMT (Greenwich Mean Time)  [See UTC] greater than (>) operator      self non-equi-joins  greater than or equal to (>=) operator  Greenwich Mean Time  [See UTC] GROUP BY clause  2nd  3rd  4th      composite columns      concatenated groupings      CUBE keyword      errors      filters and      GROUPING SETS keyword      partial CUBE      partial rollups      repeating column names      ROLLUP keyword      UNION operations  group operations      aggregate functions          ALL keyword          DISTINCT keyword          NULLs      EXPLAIN PLANs      GROUP BY clause  2nd          composite columns          concatenated groupings          CUBE keyword          NULL values          partial CUBE          partial rollups          repeating column names          ROLLUP keyword          WHERE clause      GROUP_ID function      GROUPING function      GROUPING SETS         concatenated groupings          ROLLUP and CUBE as arguments      GROUPING_ID function  2nd      HAVING clause      summary information, GROUPING SETS keyword      UNION queries  GROUP_ID function      overview  GROUPING function  GROUPING SETS keyword      concatenated groupings      ROLLUP and CUBE as arguments  GROUPING_ID function      overview