Is it possible to write a program to unzip files in pl/sql or sql ?

Question

Morning Experts,
I have a zip file on my Host which contains a list of files(reports). Each of those files have a distinct name and i have already written the codes to retreive data from those files.
My oracle is installed on a linux server
Now my question is as follows:
is it possible to write a program in sql to unzip those .zip files (located on my host) and stores its content in that same folder?
Thanks

Answer 1

You can use Java like this:CREATE OR REPLACE AND RESOLVE JAVA SOURCE NAMED "Zipper"
AS import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.util.zip.ZipInputStream;
import java.util.zip.ZipEntry;
public class Zipper {
   public static String unzip(byte[] pBuf) throws IOException {
      ZipInputStream in = new ZipInputStream(new ByteArrayInputStream(pBuf));
      ZipEntry ze;
      byte[] buf = new byte[2048];
      StringBuffer stribu = new StringBuffer(pBuf.length * 5);
      while((ze = in.getNextEntry()) != null) {
         int bytesRead;
         while((bytesRead = in.read(buf, 0, 2048)) > 0) {
            for(int i = 0; i < bytesRead; i++) {
               stribu.append((char)buf);
in.closeEntry();
in.close();
return stribu.toString();
CREATE OR REPLACE FUNCTION unzip(
pData IN RAW)
RETURN VARCHAR2
AS
LANGUAGE JAVA
NAME 'Zipper.unzip(byte[]) return java.lang.String';
In this example you can pass the content of a reltively small zip file and get the contents as VARCHAR2.
It's just to show where to start.
Hth, Urs