[英]Oracle PL-SQL : Import multiple delimited files into table
I have multiple files (f1.log, f2.log, f3.log etc) Each file has the data in ;
我有多个文件(f1.log,f2.log,f3.log等),每个文件中都有数据
;
& =
delimited format. &
=
分隔格式。 (new lines are delimited by ;
and fields are delimited by =
) eg (新行由
;
分隔,字段由=
分隔)例如
data of f1: f1的数据:
1=a;2=b;3=c
data of f2: f2的数据:
1=p;2=q;3=r
I need to read all these files and import data into table in format: 我需要读取所有这些文件并将数据以以下格式导入表:
filename number data
f1 1 a
f1 2 b
f1 3 c
f2 1 p
[...]
I am new to SQL. 我是SQL新手。 Can you please guide me, how can do it?
您能指导我,怎么做?
Use SQL*Loader to get the files into a table. 使用SQL * Loader将文件放入表中。 Assuming you have a table created a bit like:
假设您创建了一个表,如下所示:
create table FLOG
(
FILENAME varchar2(1000)
,NUM varchar2(1000)
,DATA varchar2(1000)
);
Then you can use the following control file: 然后,您可以使用以下控制文件:
LOAD DATA
INFILE 'f1.log' "str ';'"
truncate INTO TABLE flog
fields terminated by '=' TRAILING NULLCOLS
(
filename constant 'f1'
,num char
,data char
)
However, you will need a different control file for each file. 但是,每个文件都需要一个不同的控制文件。 This can be done by making the control file dynamically using a shell script.
这可以通过使用Shell脚本动态制作控制文件来完成。 A sample shell script can be:
一个示例shell脚本可以是:
cat >flog.ctl <<_EOF
LOAD DATA
INFILE '$1.log' "str ';'"
APPEND INTO TABLE flog
fields terminated by '=' TRAILING NULLCOLS
(
filename constant '$1'
,num char
,data char
)
_EOF
sqlldr <username>/<password>@<instance> control=flog.ctl data=$1.log
Saved as flog.sh
it can then be run like: flog.sh
为flog.sh
即可运行:
./flog.sh f1
./flog.sh f2
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