标签:des style class blog code http
SQL> conn /as sysdba Connected. SQL> select * from V$version; BANNER -------------------------------------------------------------------------------- Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production PL/SQL Release 11.2.0.3.0 - Production CORE 11.2.0.3.0 Production TNS for Linux: Version 11.2.0.3.0 - Production NLSRTL Version 11.2.0.3.0 - Production SQL> show parameter db_create_file_dest NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ db_create_file_dest string /data01/qing create tablespace tan_2013_9 datafile size 5m autoextend on; create tablespace tan_2013_10 datafile size 5m autoextend on; create tablespace tan_2013_11 datafile size 5m autoextend on; create tablespace tan_2013_12 datafile size 5m autoextend on; create tablespace tan_2014_1 datafile size 5m autoextend on; create tablespace tan_2014_2 datafile size 5m autoextend on; create tablespace tan_2014_3 datafile size 5m autoextend on; create tablespace tan_2014_4 datafile size 5m autoextend on; create tablespace tan_2014_5 datafile size 5m autoextend on; create tablespace tan_2014_6 datafile size 5m autoextend on; create tablespace tan_2014_7 datafile size 5m autoextend on; create tablespace tan_2014_8 datafile size 5m autoextend on; conn tan/tan SQL> create table tan (t_id number(10), t_name varchar2(100), t_date date ) partition by range(t_date) (partition tan_2013_9 values less than(to_date('2013-10-01','yyyy-mm-dd')) tablespace tan_2013_9, partition tan_2013_10 values less than(to_date('2013-11-01','yyyy-mm-dd')) tablespace tan_2013_10, partition tan_2013_11 values less than(to_date('2013-12-01','yyyy-mm-dd')) tablespace tan_2013_11, partition tan_2013_12 values less than(to_date('2014-01-01','yyyy-mm-dd')) tablespace tan_2013_12, partition tan_2014_1 values less than(to_date('2014-02-01','yyyy-mm-dd')) tablespace tan_2014_1, partition tan_2014_2 values less than(to_date('2014-03-01','yyyy-mm-dd')) tablespace tan_2014_2, partition tan_2014_3 values less than(to_date('2014-04-01','yyyy-mm-dd')) tablespace tan_2014_3, partition tan_2014_4 values less than(to_date('2014-05-01','yyyy-mm-dd')) tablespace tan_2014_4, partition tan_2014_5 values less than(to_date('2014-06-01','yyyy-mm-dd')) tablespace tan_2014_5, partition tan_2014_6 values less than(to_date('2014-07-01','yyyy-mm-dd')) tablespace tan_2014_6, partition tan_2014_7 values less than(to_date('2014-08-01','yyyy-mm-dd')) tablespace tan_2014_7, partition tan_2014_8 values less than(to_date('2014-09-01','yyyy-mm-dd')) tablespace tan_2014_8 ); create index ind_tan on tan(t_date) local ( partition ind_tan_2013_9 tablespace tan_2013_9, partition ind_tan_2013_10 tablespace tan_2013_10, partition ind_tan_2013_11 tablespace tan_2013_11, partition ind_tan_2013_12 tablespace tan_2013_12, partition ind_tan_2014_1 tablespace tan_2014_1, partition ind_tan_2014_2 tablespace tan_2014_2, partition ind_tan_2014_3 tablespace tan_2014_3, partition ind_tan_2014_4 tablespace tan_2014_4, partition ind_tan_2014_5 tablespace tan_2014_5, partition ind_tan_2014_6 tablespace tan_2014_6, partition ind_tan_2014_7 tablespace tan_2014_7, partition ind_tan_2014_8 tablespace tan_2014_8 ); begin for i in 1.. 10000 loop if( mod(i,12)+1 <=8) then insert into tan values(i,'tan'||i,to_date('2014-'||(mod(i,12)+1)||'-01','yyyy-mm-dd')); else insert into tan values(i,'tan'||i,to_date('2013-'||(mod(i,12)+1)||'-01','yyyy-mm-dd')); end if; end loop; commit; end; / SQL> select count(*) from tan partition(tan_2013_12) ; COUNT(*) ---------- 833 SQL> select count(*) from tan partition(tan_2013_9) ; COUNT(*) ---------- 833 SQL> select count(*) from tan partition(tan_2014_8) ; COUNT(*) ---------- 833 SQL> select count(*) from tan partition(tan_2014_1) ; COUNT(*) ---------- 833 SQL> select partition_name,tablespace_name from dba_segments where segment_name in ('TAN','IND_TAN'); PARTITION_NAME TABLESPACE_NAME ------------------------------ ------------------------------ TAN_2014_8 TAN_2014_8 TAN_2014_7 TAN_2014_7 TAN_2014_6 TAN_2014_6 TAN_2014_5 TAN_2014_5 TAN_2014_4 TAN_2014_4 TAN_2014_3 TAN_2014_3 TAN_2014_2 TAN_2014_2 TAN_2014_1 TAN_2014_1 TAN_2013_9 TAN_2013_9 TAN_2013_12 TAN_2013_12 TAN_2013_11 TAN_2013_11 TAN_2013_10 TAN_2013_10 IND_TAN_2014_8 TAN_2014_8 IND_TAN_2014_7 TAN_2014_7 IND_TAN_2014_6 TAN_2014_6 IND_TAN_2014_5 TAN_2014_5 IND_TAN_2014_4 TAN_2014_4 IND_TAN_2014_3 TAN_2014_3 IND_TAN_2014_2 TAN_2014_2 IND_TAN_2014_1 TAN_2014_1 IND_TAN_2013_9 TAN_2013_9 IND_TAN_2013_12 TAN_2013_12 IND_TAN_2013_11 TAN_2013_11 IND_TAN_2013_10 TAN_2013_10 24 rows selected.
<span style="font-family: Arial, Helvetica, sans-serif; font-size: 12px;">create tablespace tan_2013_7 datafile size 5m autoextend on;</span>
create tablespace tan_2013_8 datafile size 5m autoextend on; create table tan (t_id number(10), t_name varchar2(100), t_date date ) partition by range(t_date) (partition tan_2013_7 values less than(to_date('2013-08-01','yyyy-mm-dd')) tablespace tan_2013_7, partition tan_2013_8 values less than(to_date('2013-09-01','yyyy-mm-dd')) tablespace tan_2013_8 ); create index ind_tan on tan(t_date) local ( partition ind_tan_2013_7 tablespace tan_2013_7, partition ind_tan_2013_8 tablespace tan_2013_8 ); begin for i in 1.. 10000 loop insert into tan values(i,'tan'||i,to_date('2013-'||(mod(i,2)+7)||'-01','yyyy-mm-dd')); end loop; commit; end; / SQL> select count(*) from tan partition(tan_2013_8); COUNT(*) ---------- 5000 SQL> select count(*) from tan partition(tan_2013_7); COUNT(*) ---------- 5000
with table tmp_tan_2013_9 including indexes with validation;
验证:
SQL> select count(*) from tan partition(tan_2013_9) ;
COUNT(*) ---------- 0 SQL> select count(*) from tmp_tan_2013_9; COUNT(*) ---------- 833 SQL> select partition_name,tablespace_name from dba_segments where segment_name in ('TAN','IND_TAN'); PARTITION_NAME TABLESPACE_NAME ------------------------------ ------------------------------ TAN_2014_8 TAN_2014_8 TAN_2014_7 TAN_2014_7 TAN_2014_6 TAN_2014_6 TAN_2014_5 TAN_2014_5 TAN_2014_4 TAN_2014_4 TAN_2014_3 TAN_2014_3 TAN_2014_2 TAN_2014_2 TAN_2014_1 TAN_2014_1 TAN_2013_12 TAN_2013_12 TAN_2013_11 TAN_2013_11 TAN_2013_10 TAN_2013_10 IND_TAN_2014_8 TAN_2014_8 IND_TAN_2014_7 TAN_2014_7 IND_TAN_2014_6 TAN_2014_6 IND_TAN_2014_5 TAN_2014_5 IND_TAN_2014_4 TAN_2014_4 IND_TAN_2014_3 TAN_2014_3 IND_TAN_2014_2 TAN_2014_2 IND_TAN_2014_1 TAN_2014_1 IND_TAN_2013_12 TAN_2013_12 IND_TAN_2013_11 TAN_2013_11 IND_TAN_2013_10 TAN_2013_10 22 rows selected.
no rows selected
另外表空间传输需要两端库的字符集一致。
SQL> alter tablespace tan_2013_9 read only;
SQL> select count(*) from tan partition(tan_2013_9); COUNT(*) ---------- 833 SQL> select table_name,partition_name,tablespace_name from user_tab_partitions; TABLE_NAME PARTITION_NAME TABLESPACE_NAME ------------------------------ ------------------------------ ------------------------------ TAN TAN_2013_8 TAN_2013_8 TAN TAN_2013_7 TAN_2013_7 TAN TAN_2013_9 TAN_2013_9 SQL> select index_name,partition_name,tablespace_name from user_ind_partitions; INDEX_NAME PARTITION_NAME TABLESPACE_NAME ------------------------------ ------------------------------ ------------------------------ IND_TAN IND_TAN_2013_8 TAN_2013_8 IND_TAN IND_TAN_2013_7 TAN_2013_7 IND_TAN TAN_2013_9 TAN_2013_9
SQL> select table_name,partition_name,tablespace_name from user_tab_partitions; TABLE_NAME PARTITION_NAME TABLESPACE_NAME ------------------------------ ------------------------------ ------------------------------ TAN TAN_2014_3 TAN_2014_3 TAN TAN_2014_2 TAN_2014_2 TAN TAN_2014_4 TAN_2014_4 TAN TAN_2014_5 TAN_2014_5 TAN TAN_2014_6 TAN_2014_6 TAN TAN_2014_7 TAN_2014_7 TAN TAN_2014_8 TAN_2014_8 TAN TAN_2013_10 TAN_2013_10 TAN TAN_2013_11 TAN_2013_11 TAN TAN_2013_12 TAN_2013_12 TAN TAN_2014_1 TAN_2014_1 TAN TAN_2013_9 USERS 12 rows selected. SQL> <strong>alter table tan drop partition tan_2013_9;</strong> Table altered. SQL> select table_name,partition_name,tablespace_name from user_tab_partitions; TABLE_NAME PARTITION_NAME TABLESPACE_NAME ------------------------------ ------------------------------ ------------------------------ TAN TAN_2014_3 TAN_2014_3 TAN TAN_2014_2 TAN_2014_2 TAN TAN_2014_4 TAN_2014_4 TAN TAN_2014_5 TAN_2014_5 TAN TAN_2014_6 TAN_2014_6 TAN TAN_2014_7 TAN_2014_7 TAN TAN_2014_8 TAN_2014_8 TAN TAN_2013_10 TAN_2013_10 TAN TAN_2013_11 TAN_2013_11 TAN TAN_2013_12 TAN_2013_12 TAN TAN_2014_1 TAN_2014_1
用分区表分区交换做历史数据迁移,布布扣,bubuko.com
标签:des style class blog code http
原文地址:http://blog.csdn.net/bamuta/article/details/34097863