NULL-values General-Functions NV2
ORDER-BY-clause
NVL NULL-values COALESCE General-Functions NULLIF NV2
CREATE-statement DESC-command
join cross-join inner-join
join inner-join
SELECT-clause
HAVING-clause COUNT-Function aggregate-functions
AVG-Function MAX-Function FIRST-Function aggregate-functions COUNT-Function MIN-Function SUM-Function LAST-Function
WHERE-clause DELETE-statement