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How to copy the information from a text file into a table using PL/SQL - Oracle

This is the second article in a series focusing on file input/output using Oracle PL/SQL packages.

  1. Writing to Text Files in Oracle PL/SQL
  2. How to count the number of lines from the text file
  3. How to copy the information from a text file into a table using PL/SQL
  4. How to write into a text file from PL/SQL
  5. How to copy from a table into the text file from PL/SQL
  6. Other ways to write the information into a text file from PL/SQL
By: Jagadish Chatarji
Rating: starstarstarstarstar / 139
April 18, 2006

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In the previous section, we simply counted the number of lines available in a text file.  Now, let us further extend the same program by transferring the information available in the text file into an Oracle database using PL/SQL.

Before going to the PL/SQL program, we need to create a simple table named “sampletable” as follows:

create table SampleTable
    remarks varchar2(200)

You can understand that I created a table “SampleTable” with only one column, “remarks” (max. up to 200 chars).  Now, we need to insert rows into that table using PL/SQL.

The PL/SQL code to achieve the desired is the following:

    f utl_file.file_type;
    s varchar2(200);
    c number := 0;
    f := utl_file.fopen('SAMPLEDATA','sample1.txt','R');
        insert into sampletable values (s);
        c := c + 1;
    end loop;
    when NO_DATA_FOUND then
        dbms_output.put_line('No. of rows inserted : ' || c);

The only extra statement I used from the above statement is the “INSERT” statement.  You may also use the statement “COMMIT” either at the INSERT statement or after you close the file handle (in the exception section).  I just left it without committing.  But it is recommended that you commit once you finish the work. 

>>> More Oracle Articles          >>> More By Jagadish Chatarji

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