1.增加分区的语法
alter table table_name ...2.创建一个分区表sec@ora10g> drop table t_partition_range purge;Table dropped.sec@ora10g> create table t_partition_range (id number,name varchar2(50))2 partition by range(id)(3 partition t_range_p1 values less than (10) tablespace tbs_part01,4 partition t_range_p2 values less than (20) tablespace tbs_part02,5 partition t_range_p3 values less than (30) tablespace tbs_part036 );Table created.sec@ora10g> col TABLE_NAME for a20sec@ora10g> col partition_name for a20sec@ora10g> col HIGH_VALUE for a10sec@ora10g> col TABLESPACE_NAME for a15sec@ora10g> select table_name,partition_name,high_value,tablespace_name from user_tab_partitions where table_name='T_PARTITION_RANGE' order by partition_position;TABLE_NAME PARTITION_NAME HIGH_VALUE TABLESPACE_NAME-------------------- -------------------- ---------- ---------------T_PARTITION_RANGE T_RANGE_P1 10 TBS_PART01T_PARTITION_RANGE T_RANGE_P2 20 TBS_PART02T_PARTITION_RANGE T_RANGE_P3 30 TBS_PART033.添加一个分区t_range_p4sec@ora10g> alter table t_partition_range add partition t_range_p4 values less than(40) tablespace tbs_part04;Table altered.sec@ora10g> select table_name,partition_name,high_value,tablespace_name from user_tab_partitions where table_name='T_PARTITION_RANGE' order by partition_position;TABLE_NAME PARTITION_NAME HIGH_VALUE TABLESPACE_NAME-------------------- -------------------- ---------- ---------------T_PARTITION_RANGE T_RANGE_P1 10 TBS_PART01T_PARTITION_RANGE T_RANGE_P2 20 TBS_PART02T_PARTITION_RANGE T_RANGE_P3 30 TBS_PART03T_PARTITION_RANGE T_RANGE_P4 40 TBS_PART04从这个结果可以看到t_range_p4分区已经创建成功4.命题：如果在创建RANGE分区表的时候指定了maxvalue，不可以添加分区（需要使用split方法来处理）5.实验证明之6.创建带有maxvalue的分区表sec@ora10g> drop table t_partition_range purge;Table dropped.sec@ora10g> create table t_partition_range (id number,name varchar2(50))2 partition by range(id)(3 partition t_range_p1 values less than (10) tablespace tbs_part01,4 partition t_range_p2 values less than (20) tablespace tbs_part02,5 partition t_range_p3 values less than (30) tablespace tbs_part03,6 partition t_range_pmax values less than (maxvalue) tablespace tbs_part04);Table created.7.此时添加分区时会报如下的错误sec@ora10g> alter table t_partition_range add partition t_range_p4 values less than(40) tablespace tbs_part04;alter table t_partition_range add partition t_range_p4 values less than(40) tablespace tbs_part04 *ERROR at line 1:ORA-14074: partition bound must collate higher than that of the last partition难道针对这样的分区表就不能修改添加分区了么？对于强大的来说那是不可能的，处理方法是使用split的方法来处理之。8.展示使用split完成上面没有完成的分区任务sec@ora10g> alter table t_partition_range split partition t_range_pmax at (40) into (partition tbs_part05, partition t_range_pmax); Table altered. sec@ora10g> select table_name,partition_name,high_value,tablespace_name from user_tab_partitions where table_name='T_PARTITION_RANGE' order by partition_position;TABLE_NAME PARTITION_NAME HIGH_VALUE TABLESPACE_NAME-------------------- -------------------- ---------- ----------------T_PARTITION_RANGE T_RANGE_P1 10 TBS_PART01T_PARTITION_RANGE T_RANGE_P2 20 TBS_PART02T_PARTITION_RANGE T_RANGE_P3 30 TBS_PART03T_PARTITION_RANGE T_RANGE_P4 40 TBS_PART05T_PARTITION_RANGE T_RANGE_PMAX MAXVALUE TBS_PART04OK，搞定。