Oracle修改字段顺序和字段类型以及拼接字段，查看锁表

字段有数据，则类型不能直接rename

/*增加一个新字段sub_pol_code*/
alter table IPR_SUB_POLICY add sub_pol_code VARCHAR2(8);

/*将原字段ORDER_SEQ数据更新到增加的字段sub_pol_code*/
update IPR_SUB_POLICY set sub_pol_code=trim(ORDER_SEQ);

/*更新完，删除原字段ORDER_SEQ*/
alter table IPR_SUB_POLICY drop column ORDER_SEQ;

将字段

拼接为qwe-1

update IPR_SUB_POLICY set sub_pol_code= CONCAT(CONCAT(pol_code,'-'),sub_pol_code) where sub_pol_id>=1818

select * from sys.col$ where obj#=88368;
select * from all_objects where owner = 'PRODUCT' and object_name = 'IPR_SUB_POLICY' ;

select obj#,col#,name from sys.col$ where obj#=88368;

update sys.col$ set col#=7 where obj#=88368 and name='SUB_POL_CODE';
update sys.col$ set col#=3 where obj#=88368 and name='SUB_POL_NAME';
update sys.col$ set col#=4 where obj#=88368 and name='CREATE_DATE';
update sys.col$ set col#=5 where obj#=88368 and name='SALE_SERVE_OPTION';
update sys.col$ set col#=6 where obj#=88368 and name='APPLY_TYPE_CODE';

[test@rhel675771 ~]$ sqlplus sys/Clic1234 as sysdba

SQL*Plus: Release 11.2.0.4.0 Production on 星期三 8月 17 17:15:31 2016

Copyright (c) 1982, 2013, Oracle. All rights reserved.

Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> update sys.col$ set col#=3 where obj#=88368 and name='SUB_POL_CODE'
2
SQL> select obj#,col#,name from sys.col$ where obj#=88368;

OBJ# COL# NAME
---------- ---------- ------------------------------
88368 1 SUB_POL_ID
88368 2 POL_CODE
88368 3 SUB_POL_NAME
88368 4 CREATE_DATE
88368 5 SALE_SERVE_OPTION
88368 6 APPLY_TYPE_CODE
88368 7 SUB_POL_CODE

7 rows selected.

SQL> update sys.col$ set col#=3 where obj#=88368 and name='SUB_POL_CODE';

1 row updated.

SQL> select obj#,col#,name from sys.col$ where obj#=88368;

OBJ# COL# NAME
---------- ---------- ------------------------------
88368 1 SUB_POL_ID
88368 2 POL_CODE
88368 3 SUB_POL_NAME
88368 4 CREATE_DATE
88368 5 SALE_SERVE_OPTION
88368 6 APPLY_TYPE_CODE
88368 3 SUB_POL_CODE

7 rows selected.

SQL> update sys.col$ set col#=4 where obj#=88368 and name='SUB_POL_NAME';

1 row updated.

SQL> update sys.col$ set col#=5 where obj#=88368 and name='CREATE_DATE';

1 row updated.

SQL> update sys.col$ set col#=6 where obj#=88368 and name='SALE_SERVE_OPTION';

1 row updated.

SQL> update sys.col$ set col#=7 where obj#=88368 and name='APPLY_TYPE_CODE';

1 row updated.

SQL> select obj#,col#,name from sys.col$ where obj#=88368;

OBJ# COL# NAME
---------- ---------- ------------------------------
88368 1 SUB_POL_ID
88368 2 POL_CODE
88368 4 SUB_POL_NAME
88368 5 CREATE_DATE
88368 6 SALE_SERVE_OPTION
88368 7 APPLY_TYPE_CODE
88368 3 SUB_POL_CODE

7 rows selected.

SQL> commit;

Commit complete.

select * from v$locked_object x , dba_objects m where x.OBJECT_ID=m.OBJECT_ID

select * from v$session where sid=3428

alter system kill session '3428,3249'--sid ,serial#