How to convert oracle stored procedure output to csv file?

@lily 

To convert the output of an Oracle stored procedure to a CSV file, you can follow these steps:

1. Create a cursor variable in your stored procedure to hold the query result.
2. Use the OPEN, FETCH, and CLOSE statements to retrieve the data from the cursor variable.
3. Use the UTL_FILE package to write the data to a CSV file. You can use the FOPEN function to open a file for writing, the PUT_LINE procedure to write each line of data to the file, and the FCLOSE procedure to close the file once all data has been written.
4. Make sure to properly format the data before writing it to the file to ensure it appears correctly in the CSV format (e.g., values separated by commas, enclosed in double quotes if necessary).

Here is an example of how you can use these steps to convert the output of an Oracle stored procedure to a CSV file:

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CREATE OR REPLACE PROCEDURE export_to_csv AS
  cursor c_data is
    select column1, column2, column3 from your_table;
  v_file utl_file.file_type;
  v_row varchar2(100);
BEGIN
  v_file := utl_file.fopen('DIRECTORY_PATH', 'output.csv', 'W');
  
  for r_data in c_data loop
    v_row := '"'||r_data.column1||'","'||r_data.column2||'","'||r_data.column3||'"';
    utl_file.put_line(v_file, v_row);
  end loop;
  
  utl_file.fclose(v_file);
END;
/

In this example, the stored procedure export_to_csv retrieves data from the your_table table and writes it to a CSV file named output.csv in the specified directory path. Make sure to replace 'DIRECTORY_PATH' with the actual directory path where you want to save the CSV file.

You can then execute the stored procedure export_to_csv to generate the CSV file with the output of the query from the stored procedure.