批量操作初始化序列初始值

DEMO

declare
  type tsi is record(
    t varchar2(100),
    s varchar2(100),
    i varchar2(100));
  tsitemp tsi;
  maxid   varchar2(20);
begin
  for tsitemp in (select 'T_xxxx_CONFIG' as t,
                         'SEQ_xxxxx_ID' as s,
                         'xxxx_ID' as i
                    from dual
                  union
                  select 'T_ttttt_INFO' as t,
                         'SEQ_ttttt_ID' as s,
                         'tttt_ID' as i
                    from dual
                  union
                  select 'T_ddddd_LOG' as t,
                         'SEQ_dddddd_ID' as s,
                         'dddd_ID' as i
                    from dual) loop
    execute immediate 'select nvl(max(' || tsitemp.i || '+1),1) from ' ||
                      tsitemp.t
      into maxid;
    execute immediate 'drop sequence ' || tsitemp.s;
    execute immediate 'create sequence ' || tsitemp.s || ' minvalue ' ||
                      maxid || ' maxvalue 999999999999999999999999999 ' ||
                      ' start with ' || maxid || ' increment by 1' ||
                      ' cache 20' || ' order';
  end loop;
end;

 

posted @ 2023-01-19 13:54  Iven_lin  阅读(25)  评论(0)    收藏  举报