Decubitus Ulcer - staging, symptoms and treatment Decubitus Ulcer - An erosion in the SKIN that results from the pressure of remaining in one position for an extended period of time, commonly called a bedsore or pressure sore.
Interval partitioning. Interval partitioning is a partitioning method introduced in Oracle 11g. This is a helpful addition to range partitioning where Oracle automatically creates a partition when the inserted value exceeds all other partition ranges. You can only specify one partitioning key column, and it must be of NUMBER or DATE type.
Oracle applies the aggregate functions to each group of rows and returns a single result row for each group. 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.