SQLLDR中怎样CTL文件字段设置

这篇文章将为大家详细讲解有关SQLLDR中怎样CTL文件字段设置，文章内容质量较高，因此小编分享给大家做个参考，希望大家阅读完这篇文章后对相关知识有一定的了解。

position 关键字用来指定列的开始和结束位置

　 position(m:n)：指从第 m 个字符开始截止到第 n 个字符作为列值

position(*+2:15)：直接指定数值的方式叫做绝对偏移量，如果使用*号，则为相对偏移量，表示上一个字段哪里结束，这次就哪里开始，相对便宜量也可以再做运算。

position(*) char(9)：这种相对偏移量+类型和长度的优势在于，你只需要为第一列指定开始位置，其他列只需要指定列长度就可以。

FILLER：控制文件中指定 FILLER，表示该列值不导入表中。

普通 

Load DATA

INFILE *

INTO TABLE BONUS

FIELDS TERMINATED BY ","

(ENAME,JOB,SAL)

BEGINDATA

SMITH,CLEAK,3904

ALLEN,SALESMAN,2891

WARD,SALESMAN,3128

KING,PRESIDENT,2523

没有分隔符

LOAD DATA

INFILE *

TRUNCATE INTO TABLE BONUS

(

ENAME position(1:5),

JOB position(7:15),

SAL position(17:20)

)

BEGINDATA

SMITH CLEAK 2891

ALLEN SALESMAN 2891

WARD SALESMAN 3128

KING PRESIDENT 2523

比导入的表列少

LOAD DATA

INFILE *

TRUNCATE INTO TABLE BONUS

(

ENAME position(1:5),

JOB position(7:15),

SAL position(17:20),

comm "0"

)

BEGINDATA

SMITH CLEAK 2891

ALLEN SALESMAN 2891

WARD SALESMAN 3128

KING PRESIDENT 2523

比导入的表列多 

LOAD DATA

INFILE *

TRUNCATE INTO TABLE BONUS

(

ENAME position(1:6),

TCOL FILLER position(8:11),

JOB position(13:21),

SAL position(23:26)

)

BEGINDATA

SMITH  7369 CLERK     800  20

ALLEN  7499 SALESMAN  1600 30

WARD   7521 SALESMAN  1250 30

JONES  7566 MANAGER   2975 20

MARTIN 7654 SALESMAN  1250 30

BLAKE  7698 MANAGER   2850 30

CLARK  7782 MANAGER   2450 10

KING   7839 PRESIDENT 5000 10

TURNER 7844 SALESMAN  1500 30

JAMES  7900 CLERK     950  30

FORD   7902 ANALYST   3000 20

MILLER 7934 CLERK     1300 10

导入不同表

LOAD DATA

INFILE *

TRUNCATE

INTO TABLE BONUS

WHEN Tab=BON

(

Tab FILLER position(1:3),

ENAME position(5:9),

JOB position(11:19),

SAL position(21:24)

)

INTO TABLE MANAGER

WHEN Tab=MGR

(

Tab FILLER position(1:3),

MGRNO position(5:6),

MNAME position(8:14),

JOB position(16:28)

)

BEGINDATA

BON SMITH CLERK     3904

BON ALLEN SALER,M   2891

BON WARD  SALER,"S" 3128

BON KING  PRESIDENT 2523

MGR 10 SMITH   SALES MANAGER

MGR 11 ALLEN.W TECH MANAGER

MGR 16 BLAKE   HR MANAGER

TMP SMITH 7369 CLERK    800  20

TMP ALLEN 7499 SALESMAN 1600 30

TMP WARD  7521 SALESMAN 1250 30

TMP JONES 7566 MANAGER  2975 20

换行符处理

LOAD DATA

INFILE *

TRUNCATE INTO TABLE BONUS

FIELDS TERMINATED BY "," OPTIONALLY ENCLOSED BY "

(ENAME,JOB,SAL)

BEGINDATA

SMITH,CLEAK,3904

ALLEN,"SALER,M",2891

WARD,"SALER,""S""",3182

KING,PRESIDENT,2523

函数使用

LOAD DATA

INFILE *

TRUNCATE INTO TABLE BONUS

(

ENAME position(1:5),

JOB position(7:15),

SAL position(17:20),

comm "substr(:sal,1,1)"

)

BEGINDATA

SMITH CLEAK     3904

ALLEN SALESMAN  2891

WARD  SALESMAN  3128

KING  PRESIDENT 2523

大字段处理

LOAD DATA

INFILE * "str \r\n"

TRUNCATE INTO TABLE MANAGER

FIELDS TERMINATED BY "," OPTIONALLY ENCLOSED BY "

(MGRNO,MNAME,JOB,REMARK char(100000))

BEGINDATA

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. The jobs responsibilities are in the following:

1. Ensure the effective local implementation of corporate level HRinitiatives and new programs.

2. Take initiatives in defining HR strategy on attracting, hiring, integrating, developing, managing, rewarding and retaining talents for the sustainable development of company business.

3. Oversee stanard recruiting an procedures to ensure the companys staffing requirements are met in a timely manner, and interview management level candidates

4. Provide employees with fair and appropriate compensation and benefit, to ensure market competitiveness.

5. Develop, implement and oversee the training and development programs to upgrade the skills of the employee and to enhance the companys capabilities to met business goals and future challenges."

加载文件内容到大字段

LOAD DATA

INFILE *

TRUNCATE INTO TABLE LOBTBL

(

CREATE_DATE POSITION(1：17) DATE YYYY-MM-DD HH24：MI,

FILESIZE POSITION(*+1：25) "to_number(:FILESIZE, 99，999，999)",

FILEOWNER POSITION(*+1：34),

FILENAME POSITION(*+1) char(200) "substr(:FILENAME,instr(:FILENAME, \\,-1)+1)",

FILEDATA LOBFILE(FILENAME) TERMINATED BY EOF

)

BEGINDATA

2009-03-17  09:43 154     JUNSANSI F:\oracle\script\ldr_case11_1.ctl

2009-03-17  09:44 189     JUNSANSI F:\oracle\script\ldr_case11_1.dat

2009-03-17  09:44 2,369   JUNSANSI F:\oracle\script\ldr_case11_1.log

2009-03-16  16:50 173     JUNSANSI F:\oracle\script\ldr_case11_2.ctl

2009-03-16  16:49 204     JUNSANSI F:\oracle\script\ldr_case11_2.dat

2009-03-16  16:50 1,498   JUNSANSI F:\oracle\script\ldr_case11_2.log

2009-03-16  17:41 145     JUNSANSI F:\oracle\script\ldr_case11_3.ctl

2009-03-16  17:44 130     JUNSANSI F:\oracle\script\ldr_case11_3.dat

2009-03-16  17:44 1,743   JUNSANSI F:\oracle\script\ldr_case11_3.log

2009-03-17  11:01 132     JUNSANSI F:\oracle\script\ldr_case11_4.ctl

2009-03-17  11:02 188     JUNSANSI F:\oracle\script\ldr_case11_4.dat

2009-03-17  11:02 1,730   JUNSANSI F:\oracle\script\ldr_case11_4.log

载入每行的行号

load data

infile *

into table t

replace

(

seqno RECNUM //载入每行的行号

text Position(1:1024)

)

BEGINDATA

testline1

testline2

关于SQLLDR中怎样CTL文件字段设置就分享到这里了，希望以上内容可以对大家有一定的帮助，可以学到更多知识。如果觉得文章不错，可以把它分享出去让更多的人看到。