SEQUENCE

Description

Select from a sequence using the NEXTVAL pseudo-column

Versions

This operation is implemented in the following versions

7.3.4
8.0.4
8.0.5
8.0.6
8.1.5
8.1.6
8.1.7
9.0.1
9.2.0
10.1.0
10.2.0

Example

This example was developed using Oracle 9.2.0.1 on Windows 2000

This example requires the following object definitions 

    CREATE TABLE t1 (c1 NUMBER);
    
    CREATE SEQUENCE s1;

The table does not need to be analysed

The statement 

    SELECT s1.NEXTVAL FROM t1;

generates the following execution plan 

0     SELECT STATEMENT Optimizer=CHOOSE
1   0   SEQUENCE OF 'S1'
2   1     TABLE ACCESS (FULL) OF 'T1'