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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 company's 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 company's 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
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