Oracle-Jutils for Oracle 11g

A ready to use set of PL/SQL packages to make things easier in Oracle (11g only)

Mr. Adrien Sales

<Adrien.Sales@gmail.com>

Database Administrator/Information Systems Consultant

 Sourceforge / Open Source Developement

Copyright © 2009,2010 Copyright Adrien Sales/Sourceforge

Abstract

This is the documentation for the Open Source GPLv3 licensed oracle-jutils sourceforge project. By reading this documentation, you should be able to install this software (PL/SQL package, deploy java archives), and finally save a lot of time (insert BLOB/CLOB/XMLTYPE from file within a single line of code, get hashcodes on BLOBS, compress BLOBS, ...

The project is organized by packages.

Table of Contents

1. Description
Full feature list
GNU General Public License version 3
Why and how
Download
Donations
Features
Packages
Screenshots
JDBMS_LOB
JDBMS_MIMETYPES
JDBMS_CHECKSUM
JDBMS_COMPRESS
JDBMS_XMPP
JDBMS_JACKSUM
JDBMS_FILESYSTEM
JDBMS_TWITTER
JDBMS_QRCODE
TODO
Changelog
First Release : 21032009
22032009
05042009
13042009
18042009
03052009
08052009
16052009
22052009
30052009
05072009
13072009
15032010
20032010
28032010
04042010
2010808
20100814
2. Tutorial
Document versions
Install
Compile it yourself
Test packages
3. Ideas
JDBMS_XMPP
JDBMS_JACKSUM
4. Softwares


Chapter 1. Description

Purpose, features, ...

Table of Contents

Full feature list
GNU General Public License version 3
Why and how
Download
Donations
Features
Packages
Screenshots
JDBMS_LOB
JDBMS_MIMETYPES
JDBMS_CHECKSUM
JDBMS_COMPRESS
JDBMS_XMPP
JDBMS_JACKSUM
JDBMS_FILESYSTEM
JDBMS_TWITTER
JDBMS_QRCODE
TODO
Changelog
First Release : 21032009
22032009
05042009
13042009
18042009
03052009
08052009
16052009
22052009
30052009
05072009
13072009
15032010
20032010
28032010
04042010
2010808
20100814

Full feature list

Here are summarized features list :


GNU General Public License version 3

Version 3, 29 June 2007

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END OF TERMS AND CONDITIONS

How to Apply These Terms to Your New Programs

If you develop a new program, and you want it to be of the greatest possible use to the public, the best way to achieve this is to make it free software which everyone can redistribute and change under these terms.

To do so, attach the following notices to the program. It is safest to attach them to the start of each source file to most effectively state the exclusion of warranty; and each file should have at least the copyright line and a pointer to where the full notice is found.

                one line to give the programs name and a brief idea of what it does.
                Copyright (C) year
                name of author

                This program is free software: you can redistribute it and/or modify
                it under the terms of the GNU General Public License as published by
                the Free Software Foundation, either version 3 of the License, or
                (at your option) any later version.

                This program is distributed in the hope that it will be useful,
                but WITHOUT ANY WARRANTY; without even the implied warranty of
                MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                GNU General Public License for more details.

                You should have received a copy of the GNU General Public License
                along with this program.  If not, see http://www.gnu.org/licenses/.

Also add information on how to contact you by electronic and paper mail.

If the program does terminal interaction, make it output a short notice like this when it starts in an interactive mode:

                program Copyright (C) year
                name of author
                This program comes with ABSOLUTELY NO WARRANTY; for details type show w.
                This is free software, and you are welcome to redistribute it
                under certain conditions; type show c for details.

The hypothetical commands show w and show c should show the appropriate parts of the General Public License. Of course, your programs commands might be different; for a GUI interface, you would use an about box.

You should also get your employer (if you work as a programmer) or school, if any, to sign a copyright disclaimer for the program, if necessary. For more information on this, and how to apply and follow the GNU GPL, see http://www.gnu.org/licenses/.

The GNU General Public License does not permit incorporating your program into proprietary programs. If your program is a subroutine library, you may consider it more useful to permit linking proprietary applications with the library. If this is what you want to do, use the GNU Lesser General Public License instead of this License. But first, please read http://www.gnu.org/philosophy/why-not-lgpl.html.


Why and how

DBA Swiss knife

Often i have to make PL/SQL scripts to solve problems to help people like reloading/dumping a BLOB, getting a CRC32 straight from a BLOB, compress binary columns (zip, LZMA, 7z), send XMPP messages, compute complex checksums on BLOBS (or files), etc ... For each of them i did develop generic PL/SQL scripts based on standard Oracle PL/SQL packages, but it was long to develop and finally all i wanted were functions that would do the job within a single line of PL/SQL code, and this is the main driving idea. That's why i started to develop this set of packages.

I've developed this code on my spare time, any feedback will be greatly appreciated. I don't expect money, but any help is always welcome to improve the project, make a nice website, send Oracle books, donate a logo, write documentation, ask more features, or simply (and not the least) talk about oracle-jutils around you, or leave a comment on my Sourceforge guest book.

Still, you can contact me by email, and if you are an Oracle employee, i would be very pleased to talk with you as i really do am a big fan from Oracle and am passionated by my job.

And if you ask yourself why i have spent spare time on development, i can answer you : "Because it's my passion to learn and that it's fun.".

Most of the time, i really do my best no to put Java code inside the database, but as i really was too lazy to develop pure PL/SQL packages and considering that Oracle 11g has really serously improved Java performances, and does now deal with the 1.5 Jdk, i've started to put some Java code in the database.


Download

To download/browse website, go to project Homepage, or to oracle-jutils Project Web Site.


Donations

Many thanks to :

  • Guillermo Gron from Aqua Data Studio for their "Educational & OSSD (Open Source Software Developer) Licensing" open source developer license. It really is a very kind gift and makes it possible to provide you some nice screenshots with charts.


Features

As told previously, tje project is organized by packages, all owned by OJUTIL user. For each package, you should be able to perform actions from a simple sqlplus* session within a single line of code.

Packages

For each package, have a look at the screenshots to make your own opinion (a lot of screenshots are based on sqlplus* sessions to sho you that everything can simply be done within a very few lines of sql code.

JDBMS_LOB

The JDBMS_LOB package

The API of this package talks by itself. Indeed a test file is provided in test_JDBMS_LOB.sql

JDBMS_CHECKSUM

The JDBMS_CHECKSUM package

The API of this package talks by itself. Indeed a test file is provided in test_JDBMS_CHECKSUM.sql

JDBMS_MIMETYPES

The JDBMS_MIMETYPES package

The API of this package talks by itself. Indeed a test file is provided in test_JDBMS_MIMETYPES.sql

JDBMS_COMPRESS

The JDBMS_COMPRESS package

The API of this package talks by itself. Indeed a test file is provided in test_JDBMS_COMPRESS.sql

For LZMA functions, default command line parameters are provided if you want to deal in a simple way with compressing/uncompressing BLOBS that you can open with 7zip console. To use custom command lines, have a look at the switches :

                            <e|d>
                            e: encode
                            d: decode

                            Switches :

                            -a{N}:  set compression mode - [0, 1], default: 1 (max)
                            -d{N}:  set dictionary - [0,28], default: 23 (8MB)
                            -fb{N}: set number of fast bytes - [5, 273], default: 128
                            -lc{N}: set number of literal context bits - [0, 8], default: 3
                            -lp{N}: set number of literal pos bits - [0, 4], default: 0
                            -pb{N}: set number of pos bits - [0, 4], default: 2
                            -mf{MF_ID}: set Match Finder: [bt2, bt4], default: bt4
                            -eos:   write End Of Stream marker

For more details on how to use LZMA functions, have a look a test_JDBMS_COMPRESS.sql for a quick jumpstart.

JDBMS_XMPP

The JDBMS_XMPP package

The API of this package talks by itself. It is an enhanced version of my first XMPP package (see oracle-xmpp). It will have more functionalities and better behavior, as well as better designed functions. No 1.4 JDK backport will be possible due to exclusive use of latest Smack API. test_JDBMS_XMPP.sql

JDBMS_JACKSUM

The JDBMS_XMPP package

This package wrapps calls to the well known JackSum library. It is useful to compute a large variety of checksums. I have implemented direct checskum computations on files from sql, but also direct checksum computation on BLOBS.

You can then compute CRC, etc... generate edk url (files only). Have a look at test_JDBMS_JACKSUM.sql for more examples.

JDBMS_FILESYSTEM

The JDBMS_FILESYSTEM package

This package is useful to interact with the Database OS files.

You can list directory contents, etc... Have a look at test_JDBMS_FILESYSTEM.sql and to screenshots for more examples.

JDBMS_TWITTER

The JDBMS_TWITTER package

This package is useful to interact with Twitter.

For now, you can send messages and ping the Twitter server. Additional features will soon come. Have a look at test_JDBMS_TWITTER.sql and to screenshots for more examples.

JDBMS_QRCODE

The JDBMS_QRCODE package

This package is useful to deal with QrCodes.

For now, the encoding is performed thanks to Google Charts. Additional features will soon come. Have a look at test_JDBMS_QRCODE.sql and to screenshots for more examples.


Screenshots

Although things are run from command line or behind program code, things talk better with omages, so here is a little sample of screenshots :

JDBMS_LOB

JDBMS_LOB : Comparing CRC32 from the loaded BLOB and the filesystem version.

Comparing CRC32 from the loaded BLOB and the filesystem version.

JDBMS_MIMETYPES

JDBMS_MIMETYPES : Retrieving Mime Types straight from BLOBs

Retrieving Mime Types straight from BLOBs.

JDBMS_MIMETYPES : Verifying the Mime Type by editing it

Verifying the Mime Type by editing it.

JDBMS_MIMETYPES : Testing JDBMS_MIMETYPES and showing the test table

Testing JDBMS_MIMETYPES and showing the test table.

JDBMS_MIMETYPES : Testing JDBMS_MIMETYPES on a filesystem file from sqlplus*, and showing the file from operating system command

Testing JDBMS_MIMETYPES on a filesystem file from sqlplus*, and showing the file from operating system command.

JDBMS_CHECKSUM

JDBMS_CHECKSUM : Testing JDBMS_CHECKSUM : Getting a file's CRC32 from sqlplus

Testing JDBMS_CHECKSUM : Getting a file's CRC32 from sqlplus.

JDBMS_CHECKSUM : Getting a BLOB's CRC32 from sqlplus

Testing JDBMS_CHECKSUM : Getting a BLOB's CRC32 from sqlplus.

JDBMS_COMPRESS

JDBMS_COMPRESS: Trying to open the zipped BLOB (1/6)

Trying to open the zipped BLOB (1/6)

JDBMS_COMPRESS : Verify that the zipped BLOB is still readable. (Entry Name and Comment auto-generated (2/6)

Verify that the zipped BLOB is still readable. (Entry Name and Comment auto-generated (2/6)

JDBMS_COMPRESS : Reading auto-generated comments on zipped BLOB in WinRAR (3/6)

Reading auto-generated comments on zipped BLOB in WinRAR (3/6)

JDBMS_COMPRESS : Unzip BLOB with JDBMS_COMPRESS into a BLOB and check CRC32, if Mime Type can be retrieved, and test to read the on the fly unzipped BLOB (4/6)

Unzip BLOB with JDBMS_COMPRESS into a BLOB and check CRC32, if Mime Type can be retrieved, and test to read the on the fly unzipped BLOB (4/6)

JDBMS_COMPRESS : Test ZIP/UNZIP BLOBs on dedicated test tables with virtual columns that use JDBMS functions, and verify that we retrieve the right initial BLOB. (5/6)

Test ZIP/UNZIP BLOBs on dedicated test tables with virtual columns that use JDBMS functions, and verify that we retrieve the right initial BLOB. (5/6)

JDBMS_COMPRESS : Test the ZipEntries function to get zip BLOB contents like a table. (6/6)

Test the ZipEntries function to get zip BLOB contents like a table. (6/6)

JDBMS_XMPP

JDBMS_XMPP: Seeing oracle becoming online from Spark client (running on Openfire) .... (1/)

Oracle getting live on XMPP

JDBMS_XMPP : scott sending a message to prslump (both locally hosted on my local Openfire) from sqlplus. (2/)

scott is alive and talks !

JDBMS_XMPP: Making reports/statistics on your XMPP Buddies (Rosters) from standard and simple relational queries. (2/)

Making reports/statistics on your XMPP Buddies (Rosters) from standard and simple relational queries. (2/)

JDBMS_XMPP : Getting your xmpp live address book from a select statement. (2/)

Getting your xmpp live address book from a select statement. (2/)

JDBMS_XMPP : Send a message to a list of available recipients thanks to a NVARCHAR2 csv list of recipients

Send a message to a list of available recipients thanks to a NVARCHAR2 csv list of recipients

JDBMS_XMPP : Send a message to a list of recipients (while one of them is offline) thanks to a NVARCHAR2 csv list of recipients

Send a message to a list of recipients (while one of them is offline) thanks to a NVARCHAR2 csv list of recipients

JDBMS_XMPP : Send a message to a list of recipients. Notice that in this case, recipient list is provided thanks to a simple select to make integration easier.

Send a message to a list of recipients. Notice that in this case, recipient list is provided thanks to a simple select to make integration easier.

JDBMS_JACKSUM

JDBMS_JACKSUM : Generate the ed2k html url of a file from sql

Generate the ed2k html url of a file from sql

JDBMS_JACKSUM : Generate the crc32 of a BLOB from sql and format output

Generate the crc32 of a BLOB from sql and format output

JDBMS_JACKSUM : Getting all supported Jacksum checksum algorithms.

Getting all supported Jacksum checksum algorithms.

JDBMS_JACKSUM : Reporting on implemented checksums (checksum variants)

Reporting on implemented checksums (checksum variants)

JDBMS_FILESYSTEM

JDBMS_FILESYSTEM : List all zip files from a given directory

JDBMS_FILESYSTEM : List all files from a given directory, get hash (crc32) and Mime Type

JDBMS_FILESYSTEM : Extract Path and filename from an absolute filename

JDBMS_TWITTER

JDBMS_TWITTER : Post a message on a Twitter account from sqlplus.

JDBMS_TWITTER : Post a message on a Twitter account from sqlplus.

JDBMS_TWITTER : Query a given user status as a table.

JDBMS_TWITTER : Query a given user status as a table.

JDBMS_TWITTER : Make statistics on your friends (here their location).

JDBMS_TWITTER : Make statistics on your friends (here their location).

JDBMS_TWITTER : Perform queries on your friends in a convenient way.

JDBMS_TWITTER : Perform queries on your friends in a convenient way.

JDBMS_TWITTER : Parse your (or any other Twitter account) favorites.

JDBMS_TWITTER : Parse your (or any other Twitter account) favorite s.

JDBMS_TWITTER : Query the direct messages you have in your inbox.

JDBMS_TWITTER : Query the direct messages you have in your inbox.

JDBMS_TWITTER : Query the direct messages you have sent.

JDBMS_TWITTER : Query the direct messages you have sent.

JDBMS_TWITTER : Get your own followers.

JDBMS_TWITTER : Get your own followers.

JDBMS_TWITTER : Get the followers of a given Twitter account.

JDBMS_TWITTER : Get the followers of a given Twitter account.

JDBMS_TWITTER : Send a Message from sqlplus*.

JDBMS_TWITTER : Send a Message from sqlplus*.

JDBMS_QRCODE

JDBMS_QRCODE : Encode a simple Text into a QrCode from sqlplus and insert it into a test table.

JDBMS_QRCODE : Encode a simple Text into a QrCode from sqlplus and insert it into a test table.

JDBMS_QRCODE : Have a look at the QrCode in the table (here from SQL Developer), and dump it to local disk.

JDBMS_QRCODE : Have a look at the QrCode in the table (here from SQL Developer), and dump it to local disk.

JDBMS_QRCODE : Decode the QrCode from ZXing online decoder.

JDBMS_QRCODE : Decode the QrCode from ZXing online decoder.

JDBMS_QRCODE : Get the text back from ZXing online decoder.

JDBMS_QRCODE : Get the text back from ZXing online decoder.

JDBMS_QRCODE.decode_qrcode : Get the text back straight from the BLOB that contains the QrCode.
JDBMS_QRCODE.decode_qrcode : Get the text back straight from the BLOB that contains the QrCode.


TODO

Things i have to do as soon as possible, when i have time :

  1. JDBMS_COMPRESS package : compress/uncompress a given BLOB into an another BLOB with bzip2, gzip
  2. Create the JDBMS_MAIL package : will be based on Java Mail (javax.mail)
  3. Enhance PL/SQL package documentation and comments


Changelog

First Release : 21032009

First release.

22032009

Added the JDBMS_MIMETYPES package.

05042009

  • Completed JDBMS_CHECKSUM package with more CRC32 functions
  • Started to implement the JDBMS_COMPRESS package with the ZIP(BLOB) and UNZIP(BLOB) functions, with some test cases. Single Entry ZIP BLOB only are supported for now.

13042009

  • Added the PIPELINED FUNCTION ZipEntries(iBLOB IN BLOB) that takes in input the BLOB of a zipped stream/file and returns as output the table that describes the description (all entries, CRC, ...) of the BLOB.

Warning

To be able to use completely ZipEntries function, 11.1.0.6 will have to be patched to at least 11.1.0.7. Once done, everything will be completely fine (i did test it by myself).

I provide you Metalink details :

                        This problem is encountered when trying to access an NVARCHAR2 using a
                        TABLE function in PL/SQL.
                        ORA-12714: invalid national character set specified
                        due to error bug fixed in 11.1.0.7 (Server Patch Set)  :

                        Subject: Bug 6029647 - ORA-12714 accessing typed column from
                        TABLE() function

                        Range of versions believed to be affected Versions < 11.2
                        Fixed:

                        11.1.0.7 (Server Patch Set)  Patch no 6890831 => Sucess Test is OK
                        11.2 (Future Release)

18042009

  • Completed JDBMS_COMPRESS package with the UNZIP_BLOB_ZIPENTRY_TO_BLOB. Now, if you have a zip archive in a BLOB, you are able to extract a given Entry in the BLOB straight in a BLOB. Test case has been provided in the test_JDBMS_COMPRESS.sql file. The test is very easy to perform.

03052009

  • Created JDBMS_XMPP package : migrate oracle-xmpp functionalities, java code totally rewritten to give more functionalities and correct some unexpected Java behavior while running inside Oracle (SASL Authentication) as well as Presence detection. Still a lot of work to perform !
  • Created new version of send_single_plain_text_message function, this function version will be overloaded with full Connection Configuration Settings and proper/safe return code.
  • Totally rewritten the PIPELINED function (XmppRosters ) that provides Roster through a real relational table. This time i did implement the Oracle's native SQLData interface. Furthermore i do now provide much more details about Rosters than in previous (OracleXMPP) version.
  • Added some easy to use functions in JDMBS_XMPP to ping servers, test connection, ...
  • Still to do : first of all messages batch sending methods.

08052009

  • Correction in install script : i did forget to include the JDBMS_XMPP install script
  • Created first version of JDBMS_JACKSUM, that wrapps JackSum library. Now it is possible to compute a very wide range of checksums on files from sql, but of course also on BLOBs (from sql too). As detailed on JackSum website, through JDBMS_JACKSUM, JDBMS inherits a huge amount of checksums :

    "Jacksum supports 58 popular standard algorithms (Adler32, BSD sum, Bzip2's CRC-32, POSIX cksum, CRC-8, CRC-16, CRC-24, CRC-32 (FCS-32), CRC-64, ELF-32, eMule/eDonkey, FCS-16, GOST R 34.11-94, HAS-160, HAVAL (3/4/5 passes, 128/160/192/224/256 bits), MD2, MD4, MD5, MPEG-2's CRC-32, RIPEMD-128, RIPEMD-160, RIPEMD-256, RIPEMD-320, SHA-0, SHA-1, SHA-224, SHA-256, SHA-384, SHA-512, Tiger-128, Tiger-160, Tiger, Tiger2, Tiger Tree Hash, Tiger2 Tree Hash, Unix System V sum, sum8, sum16, sum24, sum32, Whirlpool-0, Whirlpool-1, Whirlpool and xor8). "

    "Jacksum supports the "Rocksoft (tm) Model CRC Algorithm", it can calculate customized CRC algorithms (all from 8 bit to 64 bit) and it supports the combination of multiple algorithms. Due to those features, millions of different new algorithms are possible. "

Since today, you are for example able to generate edk links from a dumped BLOB and provide the edk url on APEX to create a P2P sharing model of database contents, and many other cool stuff, within a very few number of lines (a single line of code is required to generate the edk url, have a look at test_JDBMS_JACKSUM to see how.

16052009

  • Now using 1.75.0 Docbook xsl to compile documentation
  • JDBMS_JACKSUM : Added the function to compute checksums on NVARCHARs and recfactored java code for Jacksum functions
  • JDBMS_XMPP : Upgraded package with batch send procedures. For now, from a single XMPP session, you can send a same message to a list of recipients. The recipient list can be provided as a comma-separated NVARCHAR2 value or from a cursor in case you would like to send messages to a set of people that you have in a personal table. Have a look at JDBMS_XMPP screenshots for more details. Having a look at test_JDBMS_XMPP.sql will also show you how to perform these batch send operations.
  • Modified a little screenshots size to make them more readable in pdf and ps versions, and hence printable.

22052009

  • Correction in install_oracle-jutils.sql : the path to cacerts was not correct dur to bad copy paste.
  • Finally added LZMA/7zip compression (and uncompression) functions. From now, it is possible to compress BLOB into the well known 7z format and hence save a lot of space with a very efficient algorithm. I'll try to find time to make a benchmark between zip compression (Level 9), Oracle 11g secured file storage COMPRESS (and COMPRESS HIGH) and LZMA algorithm (dictonary size fixed to 22).

    I have used the 7zip LZMA SDK v4.65

    For people hwo do master the LZMA algorithm, you have the handle to set your own compression parameters, the one used in the LzmaAlone class. I did inherite from LzmaAlone class so thins are clean, and so you can get documentation straight from there, in all cases, if you want to deal with custom command line switches, have a look at the JDBMS_COMPRESS package source code or at the JDBMS_COMPRESS section in this documentation.

30052009

Note

You have only have to reload the oracle-jutils.jar file for this upgrade and of course re-compile the PL/SQL packages.

  • JDBMS_CHECKSUM : Added CRC32 computation on multiple input BLOBs (up to 10). So you are now able to compute CRC32 in single shot on multiple BLOBS (the CRC32 is sequentally updated with BLOB's bytes, null BLOBs are skipped during computation). I have implemented this feature because of a specific need in my job. I'll try to implement the same overload in JDBMS_JACKUSM package, it may be useful and more homegeneous.
  • Updated test_JDBMS_COMPRESS with the grant to be able to test the LZMA compression function
  • Updated JDBMS_JACKSUM with overloaded functions to make standard checkum computations simpler : now you can just provide the algorithm. The overload is available for BLOBs, filesystem file and text. The TEST_JDBMS_JACKSUM has been updated with code samples.
  • Updated JDBMS_JACKSUM with checksum computation on up to 10 BLOBS in a single time (like in JDBMS_CHECKSUM in this same release). Overload for light version also provided (you can only provide the algorithm for shorter PL/SQL calls). You can compare the JDBMS_CHECKSUM and JDBMS_JACKSUM for crc32 algorithm, although the JDBMS_JACKSUM is much more complete but a bit slower (around 2 times slower as we do not use the same method to compute the CRC).
  • Completed the jmimemagic magic.xml file with chm mimetype. Hence, since now, JDBMS_JACKSUM will be able to detect chm files (from file or BLOB). Just reload the library to have this new mime type enabled, therefore just :
                                    loadjava -u OJUTILS/OJUTILS -resolve lib/jmimemagic-0.1.0.jar
                                loadjava -u OJUTILS/OJUTILS -resolve dist/oracle-jutils.jar
    .. and of course re-compile related PL/SQL packages (JDBMS_CHECKSUM, JDBMS_JACKSUM). On this specific topic, help is welcome to enhance the magic.xml file with new mime types, such a donation would be greatly appreciated.

05072009

  • For each new release, since now, will add the method to patch oracle-jutils within a minimal number of steps (script is as generic as possible so you should be able to patch easily on linux, windows and other 'nix OS).
  • JDBMS_COMPRESS : Added function that zips up to 10 BLOBS into a new BLOB. Have a look at test_JDBMS_COMPRESS.sql for more details.
  • Completed the magic file with application/msoutlook mime type. Now Outlook messages will be recognized
  • Changed JDBMS_CHECKSUM.get_CRC32(BLOB) beahviour : now JDBMS_CHECKSUM.get_CRC32(EMPTY_BLOB()) (same on a NULL types BLOB parameter) returns NULL instead of throwing an Exception (behaviour asked by developer as it finally makes more sense to get a null CRC than making a try/catch in client code).

To patch upgrade, just do :

                        cd $OJUTILS_HOME
                        loadjava -u OJUTILS/OJUTILS -resolve lib/jmimemagic-0.1.0.jar
                        loadjava -u OJUTILS/OJUTILS -resolve dist/oracle-jutils.jar
                        cd doc
                        cd files
                        sqlplus OJUTILS/OJUTILS
                        spool patch_05072009.log
                        @install_JDBMS_COMPRESS.sql
                        @install_JDBMS_CHECKSUM.sql
                        spool off
                        exit

13072009

Mainly, in this release, i've added the LIST_FILES (to list directory contents in a relational way) pipelinded table function. So from now, we are able to list directory like :

                        select *
                        from
                        table(LIST_FILES(iDirectory => 'H:\Incoming', ...

And get in return the list of files with their properties (Last Modified Date, privileges, hash, mime types, ... and all the properties i could grap from Java) in a relational way. Have a look at the JDBMS_FILESYSTEM screenshots as the output is really cool : you can now make crossed reports between your os files and relational content thanks to a simple join.

I've also started to implement JDBMS_FILESYSTEM package to interact with the filesystem from Oracle.

  • Added LIST_FILES to list files in a directory in a relational way
  • Added JDBMS_FILESYSTEM.get_file_name(file_absolute_path in NVARCHAR2) to extract the file name from the absolute path. Notice that it uses local OS file separator but does not require any directory read privilege.
  • Added JDBMS_FILESYSTEM.get_file_path(file_absolute_path in NVARCHAR2) to extract the file name from the absolute path. Notice that it uses local OS file separator but does not require any directory read privilege.

To patch upgrade, just do :

                        cd $OJUTILS_HOME
                        loadjava -u OJUTILS/OJUTILS -resolve lib/jmimemagic-0.1.0.jar
                        loadjava -u OJUTILS/OJUTILS -resolve dist/oracle-jutils.jar
                        cd doc
                        cd files
                        sqlplus OJUTILS/OJUTILS
                        spool patch_LATEST.log
                        @install_JDBMS_FILESYSTEM.sql
                        spool off
                        exit

15032010

  • Added JDBMS_TWITTER package. For now, only one feature is available on this package, but pretty soon, other features will come. I've base this package on a customized version of JTwitter (the Java library for the Twitter API). For now, you can post Messages and ping the Twitter server. Have a look at test_JDBMS_TWITTER.sql for examples but the package is pretty straight forward as you will see.
  • Changed JDBMS_JACKSUM.GET_CHECKSUM (BLOB, ...) on single BLOB hash computing : will now return NULL if input BLOB is NULL.
                                    select JDBMS_JACKSUM.GET_CHECKSUM(nvl(NULL, empty_blob()),
                                'crc32',
                                8,--JDBMS_JACKSUM.ENCODING_HEX_UPPERCASE
                                null,--separator
                                '#CHECKSUM',-- put a standard output format
                                -1,
                                null) as CRC32
                                from dual;

    was throwing the exception. Now, it returns a NULL checksum.

  • Modified the loadjava command : they do now are verbose
  • Corrected install.sql : i have added the install_JDBMS_FILESYSTEM.sql as i did forgot to add it in the complete install.

20032010

In this release i did especially focus on pipelined functions around Twitter functionalities. I had to denormalize some outputs to make the functions easy to use in real situations. I think to add later other simple functions, but i'm pretty convinced that this release make a real step in Twitter features inside Oracle. If one function is missing or that you would like to be added, please do not hesitate to contact me, i'll be glad to add it. And in all cases, any feedback is always welcome. Have fun Twitter from Oracle.

  • Added pipelined function (TWITTER_STATUS) to get the status of a given user by its name. As output, you get User Creation Date, the ID, mentionned twitters, the Text itself, and hte userid. Therefore, just run :
                                    select * from table(TWITTER_STATUS(NULL, 'YOUR_LOGIN', 'YOUR_PASSWORD', 'dcmomo'))
  • Added the pipelined function TWITTER_FRIENDS that enables you to query on you friends properties, and their status to make things as convenient as possible. Have a look at the screenshots for more details but things start to look nice, for example to make statistics on twitter locations, timezones, ...
  • Upgraded the JTwitter library with 1.4.4 version, see official JTwitter changelog. Many thanks to Daniel WInterwell for his reactive support on Bug corrections.
  • Added the TWITTER_FAVORITES pipelied function to get favorites as a table. Returns your favorites or anyone else favorites if username is provided (not null). Have a look at Screenshots.
  • Now, the TWITTER_FRIENDS function does provide a TIMESTAMP as the type of T_TWITTER_FRIEND.CREATION_DATE can now be a Timestamp due to JTwitter 1.4.4 feature request (on User.createdAt is now a Date).
  • Added the pipelined TWITTER_DIRECT_MESSAGES function that enable you to perform queries on your Inbox and sent (direct) messages.
  • Added the TWITTER_FOLLOWERS pipelined function to get the followers of a given Twitter account, or of your own twitter account. As for each newly added function, screenshots and test statements are provided.
  • Added the TWITTER_REPLIES pipelined function that returns the 20 most recent replies/mentions (status updates).

28032010

  • Bug Correction on TWITTER_REPLIES (dumb null variable Bug)
  • Added the TWITTER_TIMELINE pipelined function. With this function you can get your Friends Timeline or your own Home Timelines. Just set iFriendsFlag to 1 to Friends Timeline, and to 0 for your own Timeline.
  • Added the TwitterUtil class to make some tasks easier to perform (for now for Mentions management).

04042010

This is a little release around Twitter (send Message) and Compression (added gzip format) :

  • Added the SEND_MESSAGE function that sends a message and return the Message ID as output.
  • Added the USER_EXISTS function to test if a Twitter User exists (use Screen Name)
  • Added the GZIP(BLOB) and GUNZIP_BLOB functions in JDBMS_COMPRESS package

To upgrade from previous version, just run

                        -- As OJUTILS
                        cd $OJUTILS_HOME/doc/files
                        sqlplus OJUTILS/OJUTILS @install_JDBMS_COMPRESS.sql
                        sqlplus OJUTILS/OJUTILS @install_JDBMS_TWITTER.sql

                        cd $OJUTILS_HOME
                        loadjava -v -u OJUTILS/OJUTILS -resolve dist/oracle-jutils.jar

Then you are ready to gzip BLOBs and send Twitter messages.

2010808

  • Added the JDBMS_COMPRESS.TAR_DIRECTORY_RECURSIVE->BLOB function to recursively tar all files (except already existing tar files) from a directory (and subdirectories) and get the tar output as a BLOB, useful to directly take a snapshot of files in a BLOB.
  • Added JDBMS_COMPRESS.TAR_DIRECTORY that tar all files of the directory, an overloaded version is also provided to apply a regular exepression of the files you wat to tar.
  • Added buffer size argument to JDBMS_COMPRESS.GZIP_BLOB function so you can choose the buffer size while compressing /uncompressing gzip blobs.
  • Changed release naming convention, now is YYYYMMDD.
  • Upgraded Log4J library with latest log4j-1.2.16 version. Libray is provided with oracle-jutils distribution.
  • Added JDBMS_QRCODE package to deal with QrCodes in a convenient Way, that is, encoding and decoding QrCodes. Encoding is for now using Google Charts as i could not find a suitable open source library, so, for now, you can :
    1. JDBMS_QRCODE.get_google_qrchart_url and other overload versions : get the suitable Google Chart url that will be used to encode the QrCode
    2. JDBMS_QRCODE.get_Google_QrCode_Png_Image -> BLOB : to get the PNG image straight in a BLOB. All parameters can be specified according to Google Chart documentation ( Encoding, chart size, Correction Level, Margin). So, it's very easy to use and as customizable than Google online generator. Have a look at screenshots to see how easy it is to use, or at test script in test_JDBMS_QRCODE.sql
    Soon, i will add offline QrCode decoding, taking a BLOB of the png QrCode, returning the Text, and also deal with standard urs to encode contents (url, sms, phone number, email, mms,...), based on Standard specifications.

To patch from previous version :

cd $OJUTILS_HOME
loadjava -v -u OJUTILS/OJUTILS -resolve lib/log4j-1.2.16.jar
loadjava -v -u OJUTILS/OJUTILS -resolve dist/oracle-jutils.jar
cd doc/files
sqlplus OJUTILS/OJUTILS @install_JDBMS_COMPRESS.sql

20100814

This release is focused on JDBMS_QRCODE package, and first of all the feature that allows to decode QrCode from the image, without any call to google (no internet connexion required). zxing project is used to decode QrCodes.

  • JDBMS_QRCODE : added decode_qrcode(BLOB)->NVARCHAR2 function, used to decode a QRCode image on the fly : just call the function to decode it, that's it.
  • Added functions based on standard tags to encode informations in standard urls (phone number, email address, sms, mms, ...), and then launch proper application when the QrCode is loaded on the device that implements these urls. Provided functions are GENERATE_TEXT_FOR_EMAIL, GENERATE_TEXT_FOR_MAIL_ADDRESS, GENERATE_TEXT_FOR_MEDCARD, GENERATE_TEXT_FOR_MMS, GENERATE_TEXT_FOR_URL, GENERATE_TEXT_FOR_PHONE_NUMBER, GENERATE_TEXT_FOR_SMS. I have used zxing wiki to deal with urls
  • Offline QrCode encding added with JDBMS_QRCODE.get_ZXing_QrCode_Png_Image function and other overloads. Now, QrCode encoding is possible without having to connect to Google Charts. Futhermore, encoding is much faster : 0.2 seconds on my laptop, ... and of course much more confidential as your data are not sent over the network.

To patch from previous release, just :

                        -- As OJUTILS
                        cd $OJUTILS_HOME/doc/files
                        sqlplus OJUTILS/OJUTILS @install_JDBMS_QRCODE.sql

                        cd $OJUTILS_HOME
                        loadjava -v -u OJUTILS/OJUTILS -resolve dist/oracle-jutils.jar


Chapter 2. Tutorial

Table of Contents

Document versions
Install
Compile it yourself
Test packages

Document versions

Included other document formats :

  • Pdf
  • Poscript
  • Chm (cannot be opened from the Chm version)


Install

The install steps is divided in many steps, please respect the order if you are not familiar with these manipulations. If you are already experimented and think the install process can be improved, contact me.

Warning

Please note that this libray can only be used on Oracle 11g with the suitable JDK.

To install, just look at the following script and follow instructions. All jars are in /oracle-jutils/dist/ and oracle-jutils/lib/ directories.

First, go in the oracle-jutils/doc/files directory and run the install_oracle-jutils.sql script, it will create the OJUTILS schema with is dedicated tablespace, role, etc... and load all the required jars into the database. Once this done, you will be able to install all the other packages, respect the install order if you don't want to deal with dependencies.


Compile it yourself

All libraries are already provided indeed, some of you like to compile project by themselves, therefore, i'll provide you the steps to build it by yourslef.

To compile the project, just open it with Netbeans and build it, all required libraries are provided in the /lib directory, but all are not required to compile the Project : some are needed by Oracle, so follow the instructions in the install guide if you want to resolve all classes in the oracle-jutils package.

Warning

Take good care to compile the project with the same JDK as the Oracle one : take a look at $ORACLE_HOME/jdk.

To compile, just add the following libraries ($OJUTILS_HOME/lib) :

  • classes12.jar ($ORACLE_HOME/jdbc/lib)
  • xdb_g.jar
  • commons-logging-1.1.1.jar
  • jmimemagic-0.1.0.jar
  • CartridgeServices.jar (from Oracle 11g Home in RDBMS/jlib)
  • ODCI.jar (from Oracle 11g Home in RDBMS/jlib)
  • smack.jar
  • smackx.jar
  • jacksum.jar
  • signpost-core-1.2.jar
  • commons-codec-1.4.jar

All the other libraries from the $OJUTILS_HOME/lib directory need to be loaded into OJUTILS schema (have a look at the install script, everything is provided and dependances are taken in account).


Test packages

For each package, i provide a file called test_PACKAGENAME.sql. To test the package, just play around with the included scripts. For any question/problem, or if you think that more examples would welcome, feel free to contact me and i'll add somes or yours.


Chapter 3. Ideas

A set of ideas on how to use provided packages to make original, simples and innovative things inside and around Oracle. The ideas are orhanized by packages (ie. by topic).

Table of Contents

JDBMS_XMPP
JDBMS_JACKSUM

Abstract

With the following sections, you will also find ready-to use pieces of code, or simply make funny thins with Oracle.

JDBMS_XMPP

  • Use XMPP Gateways to send a wide range of messages from Oracle (for example to a Text To Speech engine, SIP, or a Voice Mail server so Oracle can send vocal messages). In a light APEX application this could do a great Job.


JDBMS_JACKSUM

  • Use APEX to generate website that could generate datapumps from the Web, generate the edk url and finally share the datapump through enterprise P2P network. Hence, file could be easily shared, without having to open directory rights to clients as only the local Oracle's edk server would run. Finally, you can share contents in a decentralized way, with very few efforts (depends on you needs).
  • Monitor spfile (or password file) md5 checkum and throw an alert from Oracle (for example thanks to JDBMS_XMPP), from SQL to alert DBA that file has changed for example.


Chapter 4. Softwares

To produce this project, i did rely on other softwares, all open sources ones (except Oracle of course). To thank them, i wanted to mention them :

  • Notepad++ : i'm a big fan, very nice and useful project
  • Netbeans
  • Docbook/Xalan (to produce documentation from docbook)
  • Greenshot (to make nice Screenshots)
  • 7Zip (to test Compressions and native OS CRC32 checks), and also for LZMA SDK
  • Aqua Data Studio (to present nice looking outputs)

I've also used the following libraries and dependencies :

  • Java Mime Magic Library (jmimemagic-0.1.0.jar)
  • Apache Commons logging
  • jmxtools.jar
  • log4j-1.2.15.jar
  • logkit.jar
  • avalon-logkit-2.1.jar
  • avalon-framework.jar
  • javax.servlet.jar
  • commons-logging-1.1.1.jar
  • jakarta-oro-2.0.8.jar
  • JackSum
  • OAuth Google Implementation (oauth-signpost)
  • JSon Implementation
  • JTwitter - the Java library for the Twitter API : Open Implementation of Twitter client by Winterwell
  • zxing - Multi-format 1D/2D barcode image processing library with clients for Android, Java. I did use it to decode QRCodes, and, in feature releases, to deal with 1D barcodes.