重建索引

查看信息

conn hr/hr
select table_name from tabs;

col segment_name format a40
select segment_name, bytes/1024 from user_segments;

col object_name format a40
select owner, object_name, object_type from dba_objects where owner='HR' order by object_type;

col object_name format a40
select object_name, object_type from user_objects order by object_type;

方式1

1.查看索引创建语句

set long 9999
select dbms_metadata.get_ddl('INDEX','EMP_JOB_IX','HR') from dual;

2.删除索引

drop index HR.EMP_JOB_IX;

3.根据第一步查询结果重新创建索引

方式2

alter index HR.EMP_JOB_IX rebuild online;

方式3

alter index HR.EMP_JOB_IX rebuild;

oracle 重建索引方法