oracle在现有表的基础上建立分区表

1. 原表的sql语句如下：
   CREATE TABLE “CBE_MESSAGE”
   ( “ID_” VARCHAR2(72 CHAR) NOT NULL ENABLE,
   “CONTENT_” CLOB,
   “CREAE_TIME_” NUMBER(19,0),
   “KEY_” VARCHAR2(500 CHAR),
   “OPT_TIME_” NUMBER(19,0),
   “RETURN_INFO” VARCHAR2(500 CHAR),
   “RETURN_STATUS” VARCHAR2(200 CHAR),
   “RETURN_TIME_” TIMESTAMP (6),
   “SIZE_” NUMBER(19,0),
   “STATUS_” VARCHAR2(255 CHAR),
   “TITLE_” VARCHAR2(500 CHAR),
   “TYPE_” VARCHAR2(200 CHAR),
   “INSERT_TIME” TIMESTAMP (6) DEFAULT systimestamp,
   PRIMARY KEY (“ID_”)
   )

2. 创建一张与原表字段一样的临时分区表：CBE_MESSAGE_TEMP,建表语句如下：
   CREATE TABLE “CBE_MESSAGE_TEMP”
   (“ID_” VARCHAR2(72 CHAR) NOT NULL ENABLE,
   “CONTENT_” CLOB,
   “CREAE_TIME_” NUMBER(19,0),
   “KEY_” VARCHAR2(500 CHAR),
   “OPT_TIME_” NUMBER(19,0),
   “RETURN_INFO” VARCHAR2(500 CHAR),
   “RETURN_STATUS” VARCHAR2(200 CHAR),
   “RETURN_TIME_” TIMESTAMP (6),
   “SIZE_” NUMBER(19,0),
   “STATUS_” VARCHAR2(255 CHAR),
   “TITLE_” VARCHAR2(500 CHAR),
   “TYPE_” VARCHAR2(200 CHAR),
   “INSERT_TIME” TIMESTAMP (6) DEFAULT systimestamp,
   PRIMARY KEY (“ID_”)
   )
   partition by range (INSERT_TIME) interval (NUMTODSINTERVAL (5, ‘day’) )
   (partition default_ptablen values less than (to_date(‘2017-02-13’, ‘yyyy-mm-dd’)));

3. 将原表数据插入新建的临时分区表CBE_MESSAGE_TEMP，插入语句如下：
   INSERT INTO CBE_MESSAGE_TEMP (ID_,CONTENT_,CREAE_TIME_,KEY_,OPT_TIME_,RETURN_INFO,RETURN_STATUS,RETURN_TIME_,SIZE_,STATUS_,TITLE_,TYPE_,INSERT_TIME)
   SELECT ID_,CONTENT_,CREAE_TIME_,KEY_,OPT_TIME_,RETURN_INFO,RETURN_STATUS,RETURN_TIME_,SIZE_,STATUS_,TITLE_,TYPE_,INSERT_TIME FROM CBE_MESSAGE；

4. 将原表重命名为CBE_MESSAGE_OLD,sql语句如下：
   RENAME CBE_MESSAGE TO CBE_MESSAGE_OLD;

5. 将新建的临时分区表CBE_MESSAGE_TEMP重命名为CBE_MESSAGE,sql语句如下：
   RENAME CBE_MESSAGE_TEMP TO CBE_MESSAGE;

6. 删除表CBE_MESSAGE_OLD,sql如下
   DROP TABLE CBE_MESSAGE_OLD;