Active Session History (ASH)
Advanced grouping
aggregate functions
CUBE
GROUP*
HAVING clause
LISTAGG
orbital and deep space launches
ORDER BY clauses
ROLLUP
Advanced SELECT features
advanced grouping
analytic functions
CASE and DECODE
common table expressions
joins
JSON
NLS
SeeNational Language Support (NLS)
operators/functions/expressions/conditions
precedence rules
semantics
simplify
SQL Language Reference
pivoting and unpivoting
recursive queries
regular expressions
row limiting
set operators
sorting
table references
XML
Advanced aggregate functions
Alternative database models ...