SORT (AGGREGATE)

Description

Calculate aggregate totals using functions SUM,COUNT,MIN,MAX,AVG etc.

Versions

This operation is implemented in the following versions

Example

This example was developed using Oracle 9.2.0.1 on Windows 2000

This example requires the following table definition

    CREATE TABLE t1 (c1 NUMBER);

The table does not need to be analysed

The statement

    SELECT COUNT(*) FROM t1;

generates the following execution plan

0     SELECT STATEMENT Optimizer=CHOOSE
1   0   SORT (AGGREGATE)
2   1     TABLE ACCESS (FULL) OF 'T1'