His reign of 72 years and 110 days is the longest of any monarch of a major country in European history. In this age of absolutism in Europe, Louis XIV's France was a leader in the growing centralization of power.
If you omit the GROUP BY clause, then Oracle applies aggregate functions in the select list to all the rows in the queried table or view. You use aggregate functions in the HAVING clause to eliminate groups from the output based on the results of the aggregate functions, rather than on the values of the individual rows of the queried table or view.
For example, when you construct a query by using ORDER BY, the sort order of your result set might be dependent on the collation that is applied to the database or dictated in a COLLATE clause at the expression level of the query.orcing Collation at the Expression Level (or in the WHERE clause). And, of course, one of the great things about collations is that they can be set at the expression level â something that few developers or DBAs take advantage of.