SEQUENCE

 

--Create a sequence (increment by 1 each time)

CREATE SEQUENCE  SEQ_LDBG  AS INT START WITH 1 INCREMENT BY 1 MINVALUE 1    

       NO MAXVALUE NO CYCLE NO CACHE ORDER; 

 

 

select   NEXT VALUE FOR SEQ_LDBG  from pistable0

 

 

--Modify the value of the sequence to 1

alter sequence SEQ_LDBG restart with 1; 

 

alter sequence seq_test restart with 1000; -- seq_test starts at 1000

alter sequence seq_test restart; -- seq_test recounts from the start value created by seq_test

alter sequence seq_test increment by 1; -- change the step size of seq_test (value for each change)

alter sequence seq_test minvalue 10 ; -- change the minimum value of seq_test to 10

alter sequence seq_test no minvalue ; -- alter seq_test without minvalue

alter sequence seq_test maxvalue 10000 ; -- change the maximum value of seq_test to 10000

alter sequence seq_test no minvalue ; -- alter sequence seq_test no minvalue

alter sequence seq_test no cycle ; -- seq_test does not cycle count

alter sequence seq_test cycle ; -- seq_test restarts counting after reaching the maximum value

alter sequence seq_test cache 500 ; -- seq_test caches 500 each time

alter sequence seq_test no cache ; -- seq_test does not use cache

alter sequence seq_test order; -- seq_test sequence value sequence generation

alter sequence seq_test no order; -- seq_test sequence values ​​are not generated in order