Need to import 60+ CSVs to separate tables (can I bulk import or loop?)

Question

Hi all,
I have 60+ CSV files which I would like to create to a separate table.
To make things easier, let's say that these are named 1, 2, 3, 4, .... n.
I am currently using Oracle SQL Developer.
Is there a way to write a script or perform a bulk create so that I create different tables (i.e. 1, 2, 3, 4, ... n)?
Because I'm thinking it would be very time consuming to use the normal 'import data' function for each file... also there is a possibility that more files need to be loaded.
Otherwise, is it possible to write some sort of 'script' which references a directory on my hard drive and then loops through to create the tables as well?
Would be great if anyone could point me to some reference materials.
Thanks

Answer 1

I agree with Hoek, if the structure of the files is the same, then just use a single External Table definition and use the Alter Table statement to change the "location" (which is the filename) dynamically at run-time before you then query the file and insert the contents into your table(s).
http://www.morganslibrary.org/reference/externaltab.html
Example:
I have a file on my server in a folder c:\mydata called text.csv which is a comma seperated file...
1,"Fred",200
2,"Bob",300
3,"Jim",50As sys user:
CREATE OR REPLACE DIRECTORY TEST_DIR AS "c:\mydata";
GRANT READ, WRITE ON DIRECTORY TEST_DIR TO myuser;Note: creates a directory object, pointing to a directory on the server and must exist on the server (it doesn't create the physical directory).
As myuser:
SQL> CREATE TABLE ext_test
  2    (id      NUMBER,
  3     empname VARCHAR2(20),
  4     rate    NUMBER)
  5  ORGANIZATION EXTERNAL
  6    (TYPE ORACLE_LOADER
  7     DEFAULT DIRECTORY TEST_DIR
  8     ACCESS PARAMETERS
  9       (RECORDS DELIMITED BY NEWLINE
10        FIELDS TERMINATED BY ","
11        OPTIONALLY ENCLOSED BY '"'
12        (id,
13         empname,
14         rate
15        )
16       )
17     LOCATION ('test.csv')
18    );
Table created.
SQL> select * from ext_test;
        ID EMPNAME                    RATE
         1 Fred                        200
         2 Bob                         300
         3 Jim                          50
SQL>
{code}
And to alter the location...
{code}
SQL> begin
  2    execute immediate 'alter table ext_test location(''test'||to_char(sysdate-1,'YYYYMMDD')||'.csv'')';
  3  end;
  4  /
PL/SQL procedure successfully completed.
SQL> ed
Wrote file afiedt.buf
  1* select dbms_metadata.get_ddl('TABLE', 'EXT_TEST', USER) from dual
SQL> /
DBMS_METADATA.GET_DDL('TABLE','EXT_TEST',USER)
  CREATE TABLE "SCOTT"."EXT_TEST"
   (    "ID" NUMBER,
        "EMPNAME" VARCHAR2(20),
        "RATE" NUMBER
   ORGANIZATION EXTERNAL
    ( TYPE ORACLE_LOADER
      DEFAULT DIRECTORY "TEST_DIR"
      ACCESS PARAMETERS
      ( RECORDS DELIMITED BY NEWLINE
      FIELDS TERMINATED BY ","
      OPTIONALLY ENCLOSED BY '"'
      (id,
       empname,
       rate
      LOCATION
       ( 'test20101214.csv'
    )Edited by: BluShadow on 17-Apr-2013 08:31
to add example