SQLLoader8(加载的数据中有换行符处理方法)

SQLLDR加载的数据中有换行符处理方法
1、创建测试表:

CREATE TABLE MANAGER(

MGRNO NUMBER,

MNAME VARCHAR2(30),

JOB VARCHAR2(30),

REMARK VARCHAR2(1000)

);

2、创建控制文件
我们可以通过控制文件,在数据加载前处理remark列的数据,将用户指定的"\n"字符替换为chr(10),即标准换行符,创建控制文件如下:

LOAD DATA

INFILE 'D:\testSqlLoader\ldr_case11_1.dat'

TRUNCATE INTO TABLE MANAGER

FILELDS TERMINATED BY ","

(MGRNO,MNAME,JOB,REMARK "REPLACE(:REMARK,'\\n',CHR(10))"

)

/*这里需要注意的是,替换时必须指定"\\n"而不只是"\n",因为"\n"会被SQLLDR识 别成换行符并转换成换行标志,这样可能导致数据加载出错。而"\"是默认转义符,指定该转义符后SQLLDR
就会将"\n"识别成普通字符了。*/

3、数据文件
保存为D:\testSqlLoader\ldr_case11_1.dat

10,SMITH,SALES MANAGER,This is SMITH.\nHe is a Sales Manager. 

11,ALLEN.W,TECH MANAGER,This is ALLEN.W.\nHe is a Tech Manager. 

16,BLAKE,HR MANAGER,This is BLAKE.\nHe is a Hr Manager.

4、执行命令

C:\Users\Administrator>sqlldr scott/tiger@orcl control=D:\testSqlLoader\ldrTest.ctl



SQL*Loader: Release 11.2.0.1.0 - Production on 星期二 12月 2 22:37:10 2014



Copyright (c) 1982, 2009, Oracle and/or its affiliates. All rights reserved.



达到提交点 - 逻辑记录计数 3

5、查看结果

SQL> SELECT * FROM MANAGER;

MGRNO MNAME JOB REMARK

---------- ------------------------------ ------------------- ----------------------------

10 SMITH SALES MANAGER This is SMITH.

He is a Sales Manager.

11 ALLEN.W TECH MANAGER This is ALLEN.W.

He is a Tech Manager.

16 BLAKE HR MANAGER This is BLAKE.

He is a Hr Manager

 

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