一、实验说明: 操作系统:rhel 5.4 x86 数据库:Oracle 11g R2 实验说明:该实验参照了谭老师的《让Oracle跑的
一、实验说明:
操作系统:rhel 5.4 x86
数据库:Oracle 11g R2
实验说明:该实验参照了谭老师的《让Oracle跑的更快2》中的一个案例。
二、在数据库中创建带加载数据的分区表及索引
----------创建一个包含3个分区的分区表,分区的字段是一个时间字段,分别存放2011年、2012年和之后的数据。-----
SQL> create table jack_test(id int,name varchar2(60),created date)
2 partition by range(created)
3 (
4 partition p2011 values less than(to_date('2012-01-01','yyyy-mm-dd')),
5 partition p2012 values less than(to_date('2013-01-01','yyyy-mm-dd')),
6 partition pmax values less than (maxvalue)
7 );
Table created.
----------创建全文索引----------------------------------------------------------------------
SQL> create index jack_test_ind on jack_test(name) indextype is ctxsys.context local;
Index created.
三、在数据库中创建临时表
----------创建一个和jack_test表结构完全相同的临时表jack_test,只是它不是分区表,临时表上暂时不需要创建索引-------jack_temp
3 Table created.
四、由程序将待加载的数据写成固定格式的文件
---------下面是sqlldr的一个控制文件-------------------------
[oracle@node2 jack]$ vi jack_test_2011.ctl
OPTIONS (DIRECT=TRUE)
LOAD DATA
INFILE '/home/oracle/jack/jack_test_2011.dat'
BADFILE '/home/oracle/jack/jack_test_2011.bad'
DISCARDFILE '/home/oracle/jack/jack_test_2011.dsc'
APPEND INTO TABLE jack_temp
(id TERMINATED BY WHITESPACE,
name TERMINATED BY WHITESPACE,
created DATE "YYYY-MM-DD HH24:MI:SS" TERMINATED BY WHITESPACE)
----------下面是需要加载的格式文件中的部分数据--------------------------
[oracle@node2 jack]$ more jack_test_2011.dat
13628 index 2011-6-8
13629 index 2011-6-8
13630 index 2011-6-8
13631 index 2011-6-8
13632 index 2011-6-8
13633 index 2011-6-8
13634 index 2011-6-8
13635 index 2011-6-8
13636 index 2011-6-8
13637 index 2011-6-8
13638 index 2011-6-8
13639 index 2011-6-8
13640 index 2011-6-8
13641 index 2011-6-8
13642 index 2011-6-8
13643 index 2011-6-8
五、使用SQL*Loader将文件装载入临时文件中
-------------开始加载数据---------------------------------------------------
[oracle@node2 jack]$ sqlldr jack/jack control=jack_test_2011.ctl
SQL*Loader: Release 11.2.0.1.0 - Production on Tue Dec 25 14:59:25 2012
Copyright (c) 1982, 2009, Oracle and/or its affiliates. All rights reserved.
Load completed - logical record count 27381.
---------------验证是否加载成功-----------------------------
SQL> set linesize 150;
SQL> set pagesize 100;
SQL> select * from jack_test where rownum
no rows selected
SQL> select * from jack_temp where rownum
ID NAME CREATED
---------- ------------------------------------------------------------ ---------
13628 index 08-JUN-11
13629 index 08-JUN-11
13630 index 08-JUN-11
13631 index 08-JUN-11
13632 index 08-JUN-11
13633 index 08-JUN-11
13634 index 08-JUN-11
13635 index 08-JUN-11
13636 index 08-JUN-11
9 rows selected.
SQL> select count(*) from jack_temp;
COUNT(*)
----------
27378
SQL> select count(*) from jack_test partition (p2011);
COUNT(*)
----------
0
SQL> select count(*) from jack_test;
COUNT(*)
----------
0
六、在临时表中创建全文索引和其他需要的索引

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