测试

-- Create table
create table B_SD_PACK_TMP_DETAIL
(
  ID            number,
  TMP_ID        number,
  IMSI_NO       NVARCHAR2(40),
  DEVICE_NUMBER NVARCHAR2(11),
  GOOD_FLAG     number(2) default 0
  STATUS        number(2),
  NOTE          nvarchar2(50),
)
;

-- Create table
create table B_SD_PACK_TMP_DETAIL
(
  ID            number,
  TMP_ID        number,
  IMSI_NO       NVARCHAR2(40),
  DEVICE_NUMBER NVARCHAR2(11),
  GOOD_FLAG     number(2) default 0
  STATUS        number(2),
  NOTE          nvarchar2(50),
)
;

-- Create table
create table B_SD_PACK_TMP_DETAIL
(
  ID            number,
  TMP_ID        number,
  IMSI_NO       NVARCHAR2(40),
  DEVICE_NUMBER NVARCHAR2(11),
  GOOD_FLAG     number(2) default 0
  STATUS        number(2),
  NOTE          nvarchar2(50),
)
;

select 'create sequence '||sequence_name||' minvalue 1
maxvalue 999999999999999999999999999
start with 1
increment by 1
cache 20;' from user_sequences

select 'create sequence '||sequence_name||' minvalue 1
maxvalue 999999999999999999999999999
start with 1
increment by 1
cache 20;' from user_sequences

SQL> select dbms_flashback.get_system_change_number from dual; 
  
GET_SYSTEM_CHANGE_NUMBER 
------------------------ 
                  479197 
  
SQL> select sal from emp where ename='SCOTT'; 
  
      SAL 
--------- 
  3000.00 
  
SQL> update emp set sal = 5000 where ename='SCOTT'; 
  
1 row updated 
  
SQL> commit; 
  
Commit complete
SQL> select sal from emp where ename='SCOTT'; 
  
      SAL 
--------- 
  5000.00 
  
SQL> select sal from emp as of scn 479197 where ename='SCOTT'; 
  
      SAL 
--------- 
  3000.00

SQL> select dbms_flashback.get_system_change_number from dual; 
  
GET_SYSTEM_CHANGE_NUMBER 
------------------------ 
                  479197 
  
SQL> select sal from emp where ename='SCOTT'; 
  
      SAL 
--------- 
  3000.00 
  
SQL> update emp set sal = 5000 where ename='SCOTT'; 
  
1 row updated 
  
SQL> commit; 
  
Commit complete
SQL> select sal from emp where ename='SCOTT'; 
  
      SAL 
--------- 
  5000.00 
  
SQL> select sal from emp as of scn 479197 where ename='SCOTT'; 
  
      SAL 
--------- 
  3000.00