本地分区索引

drop table JS_SKSKJDK_DZFPMX01 purge;


--创建分区表 jssj
SQL> create table JS_SKSKJDK_DZFPMX01(
      fpdm      VARCHAR2(12) not null,
      fphm      VARCHAR2(8) not null,
      jssj      DATE,
      CONSTRAINT PK_JS_SKSKJDK_DZFPMX01 PRIMARY KEY(FPHM,FPDM)
      USING INDEX TABLESPACE users
    )
     PARTITION BY RANGE(JSSJ)
       (PARTITION p01 VALUES LESS THAN(to_date('2016/8/31 10:53:40','yyyy-mm-dd hh24:mi:ss')) TABLESPACE users) enable row movement;

Table created.

--创建本地分区索引
SQL> create index ind_jssj01 on JS_SKSKJDK_DZFPMX01(jssj)  local tablespace users; 

Index created.


-- 为分区表新增分区 
SQL> alter table JS_SKSKJDK_DZFPMX01 add partition p02 values  less than (to_date('2016/10/30 10:53:40','yyyy-mm-dd hh24:mi:ss')) tablespace  users;

Table altered.

SQL> alter table JS_SKSKJDK_DZFPMX01 add partition p03 values  less than (to_date('2016/11/30 10:53:40','yyyy-mm-dd hh24:mi:ss')) tablespace  users;

Table altered.

SQL> alter table JS_SKSKJDK_DZFPMX01 add partition p04 values  less than (to_date('2016/12/3 10:53:40','yyyy-mm-dd hh24:mi:ss')) tablespace  users;

Table altered.

SQL> alter table JS_SKSKJDK_DZFPMX01 add partition p05 values  less than (to_date('2016/12/30 10:53:40','yyyy-mm-dd hh24:mi:ss')) tablespace  users;

Table altered.

-- 将局部索引重建于指定的索引分区
alter index ind_jssj  rebuild partition  part04 tablespace users;

--检查索引状态 
SQL> select  t2.locality,t1.index_name,t1.partition_name,t1.status,t1.tablespace_name from user_ind_partitions t1, user_part_indexes t2  where t1.index_name in ('IND_JSSJ01') and t1.index_name=t2.index_name 
  2  order by index_name,partition_name;

LOCALI INDEX_NAME                     PARTITION_NAME                 STATUS   TABLESPACE_NAME
------ ------------------------------ ------------------------------ -------- ------------------------------
LOCAL  IND_JSSJ01                     P01                            USABLE   USERS
LOCAL  IND_JSSJ01                     P02                            USABLE   USERS
LOCAL  IND_JSSJ01                     P03                            USABLE   USERS
LOCAL  IND_JSSJ01                     P04                            USABLE   USERS
LOCAL  IND_JSSJ01                     P05                            USABLE   USERS


--删除某个分区
SQL> alter table JS_SKSKJDK_DZFPMX01  drop partition p02;

Table altered.

--再次检查索引状态   

SQL> select  t2.locality,t1.index_name,t1.partition_name,t1.status,t1.tablespace_name from user_ind_partitions t1, user_part_indexes t2  where t1.index_name in ('IND_JSSJ01') and t1.index_name=t2.index_name 
  2  order by index_name,partition_name;

LOCALI INDEX_NAME                     PARTITION_NAME                 STATUS   TABLESPACE_NAME
------ ------------------------------ ------------------------------ -------- ------------------------------
LOCAL  IND_JSSJ01                     P01                            USABLE   USERS
LOCAL  IND_JSSJ01                     P03                            USABLE   USERS
LOCAL  IND_JSSJ01                     P04                            USABLE   USERS
LOCAL  IND_JSSJ01                     P05                            USABLE   USERS

--结论 本地分区索引,删除某个分区 对于其他的索引分区没有任何影响


  
  
  
 

创建时间:2022-04-02 13:58
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