Oracle中如何快速的卸载和加载数据

D:\OraDoc\OracleTools\ociuldr>cat a.ctl
LOAD DATA
INFILE 'emp.txt'
INTO TABLE empt
APPEND
FIELDS TERMINATED BY '#' TRAILING NULLCOLS
(
EMPNO ,
ENAME CHAR ,
JOB CHAR ,
MGR ,
HIREDATE DATE ,
SAL ,
COMM ,
DEPTNO
) 
D:\OraDoc\OracleTools\ociuldr>sqlldr scott/tiger@eygle2 control=a.ctl
SQL*Loader: Release 10.2.0.1.0 - Production on 星期二 2月 27 16:01:24 2007
Copyright (c) 1982, 2005, Oracle. All rights reserved.
达到提交点 - 逻辑记录计数 14
D:\OraDoc\OracleTools\ociuldr>sqlplus scott/tiger@eygle2
SQL*Plus: Release 10.2.0.1.0 - Production on 星期二 2月 27 16:01:37 2007
Copyright (c) 1982, 2005, Oracle. All rights reserved.
连接到:
Oracle9i Enterprise Edition Release 9.2.0.4.0 - Production
With the Partitioning option
JServer Release 9.2.0.4.0 - Production
SQL> set linesize 120
SQL> select * from empt;
EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO
---------- ---------- --------- ---------- -------------- ---------- --- 
7369 SMITH CLERK 7902 17-12月-80 800 20
7499 ALLEN SALESMAN 7698 20-2月 -81 1600 300 30
7521 WARD SALESMAN 7698 22-2月 -81 1250 500 30
7566 JONES MANAGER 7839 02-4月 -81 2975 20
7654 MARTIN SALESMAN 7698 28-9月 -81 1250 1400 30
7698 BLAKE MANAGER 7839 01-5月 -81 2850 30
7782 CLARK MANAGER 7839 09-6月 -81 2450 10
7788 SCOTT ANALYST 7566 19-4月 -87 3000 20
7839 KING PRESIDENT 17-11月-81 5000 10
7844 TURNER SALESMAN 7698 08-9月 -81 1500 0 30
7876 ADAMS CLERK 7788 23-5月 -87 1100 20
7900 JAMES CLERK 7698 03-12月-81 950 30
7902 FORD ANALYST 7566 03-12月-81 3000 20
7934 MILLER CLERK 7782 23-1月 -82 1300 10
已选择14行。
SQL>
                              

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