1、 创建表空间
create bigfile tablespace viot_data_400w1logging datafile 'E:\data\viot_data_400w1.dbf' size 20g autoextend on next 1g;
注释:
viot_data_400w1 表空间名称;
E:\data\viot_data_400w1.dbf 表空间位置(前提需创建E\data文件夹;
20g 默认的表空间大小
1g 表空间写满后,自动扩展的大小。
2、创建表,并对表指定分区
create TABLE TEMP400W ( "RYBH" VARCHAR2(20 BYTE), "ZPBH"VARCHAR2(20 BYTE), "RXZP"BLOB, "XM"VARCHAR2(30 BYTE), "XB"CHAR(1 BYTE), "ZJHM"VARCHAR2(20 BYTE), "INCCOLUM" NUMBER NOT NULL PRIMARYKEY ) PARTITION BY RANGE (INCCOLUM) ( PARTITION CUS_PART1 VALUES LESS THAN (900000) TABLESPACEviot_data_400w1, PARTITION CUS_PART2 VALUES LESS THAN (1800000) TABLESPACEviot_data_400w2, PARTITION CUS_PART3 VALUES LESS THAN (2700000) TABLESPACEviot_data_400w3, PARTITION CUS_PART4 VALUES LESS THAN (3600000) TABLESPACEviot_data_400w4, PARTITION CUS_PART5 VALUES LESS THAN (4500000) TABLESPACEviot_data_400w5 )
注释:创建表TEMP400W; 并且为表指定4个分区;CUS_PART1 存储0-900000的记录;CUS_PART2存储第900001-1800000的记录,以此类推;
3、 查看表分区
select * from user_tab_partitions where table_name = 'TEMP400W'
注释:查看TEMP400W的所有分区
4、 修改表操作不写日志
alter table temp400W NOLOGGING
5、创建DBLink的授权给scott用户
grant CREATE PUBLIC DATABASE LINK,DROP PUBLICDATABASE LINK to scott;
6、创建数据库链接
CREATE PUBLIC DATABASE LINK viot_dblinkCONNECT TO viot IDENTIFIED BY viot USING '(DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.12.110)(PORT = 1521)) ) (CONNECT_DATA = (SERVICE_NAME = viot) ) )'
7、连表查询插入语句。
insert intotemp400W(rybh,zpbh,rxzp,xm,xb,zjhm,inccolum) selectrybh,zpbh,rxzp,xm,xb,zjhm,inccolum1 from temp400W@viot_dblink
8、查看表空间的使用率
SELECT a.tablespace_name "表空间名", total "表空间大小", free "表空间剩余大小", ( total - free ) "表空间使用大小", Round(( total - free ) / total, 4) * 100 "使用率 %" FROM (SELECT tablespace_name, Sum(bytes) free FROM DBA_FREE_SPACE GROUP BY tablespace_name) a, (SELECT tablespace_name, Sum(bytes) total FROM DBA_DATA_FILES GROUP BY tablespace_name) b WHERE a.tablespace_name = b.tablespace_name
参考链接:
http://blog.chinaunix.net/uid-11570547-id-58989.html
http://soft.chinabyte.com/database/290/12218290.shtml
http://www.cnblogs.com/leiOOlei/archive/2012/06/08/2541306.html