Oracle 序列的创建和使用

2007-09-05 20:52:56

标签：Oracle

Oracle 序列的创建和使用

创建序列
create sequence seq_a minvalue 1000 maxvalue 99999999 start with 1000 increment by 1 nocache;


查询序列
select seq_a.nextval from dual;

drop sequence seq_a

为每张表生成对应的序列

--创建存储过程
create or replace procedure p_createseq(tablename in varchar2)
is
strsql varchar2(500);
begin
strsql:='create sequence seq_'||tablename||' minvalue 1000 maxvalue 99999999 start with 1000 increment by 1 nocache';
execute immediate strsql;
end p_createseq;
/

--创建序列
exec p_createseq('t_power');
exec p_createseq('t_roler');
exec p_createseq('t_roler_power');
exec p_createseq('t_department');
exec p_createseq('t_quarters');
exec p_createseq('t_quarters_roler');
exec p_createseq('t_emp');
exec p_createseq('t_require_plan');
exec p_createseq('t_require_minutia');
exec p_createseq('t_require_audit');
exec p_createseq('t_engage');
exec p_createseq('t_home');
exec p_createseq('t_education');
exec p_createseq('t_works');
exec p_createseq('t_skill');
exec p_createseq('t_account');
exec p_createseq('t_licence');
exec p_createseq('t_title');
exec p_createseq('t_remove');
exec p_createseq('t_train');
exec p_createseq('t_pact');
exec p_createseq('t_assess');
exec p_createseq('t_attendance');
exec p_createseq('t_reward_punish');
exec p_createseq('t_dimission');
exec p_createseq('t_emp_roler');
exec p_createseq('t_code');