How to create an Oracle sequence starting with max value from a table?

Question

Trying to create a sequence in Oracle that starts with the max value from a specific table. Why does this not work?

CREATE SEQUENCE transaction_sequence
  MI         


        

Answer 1

Based on Ivan Laharnar with less code and simplier:

declare
    lastSeq number;
begin
    SELECT MAX(ID) + 1 INTO lastSeq FROM ;
    if lastSeq IS NULL then lastSeq := 1; end if;
    execute immediate 'CREATE SEQUENCE  INCREMENT BY 1 START WITH ' || lastSeq || ' MAXVALUE 999999999 MINVALUE 1 NOCACHE';
end;