Create Sequence in SQL Oracle, Create Trigger on Insert and Update in Oracle

Sequence in Oracle SQL. Following is the basic code to create a sequence in Oracle SQL


CREATE SEQUENCE sequence_name
START WITH 1
INCREMENT BY 1
MAXVALUE 99999999
MINVALUE 1
NOCYCLE;


Trigger on insert and update on any table 


Following code can be used to create a trigger on any table, It will invoke and do what you want when any value will get inserted and update in table


create or replace trigger trigger_name before insert OR update on table
for each row begin


write you logic here what should happen when trigger gets invoke.
end;

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