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Retrieving CLOB Values with getString() Method
This section describes how to retrieve CLOB values with the ResultSet.getString() method.
2018-09-01, 606👍, 2💬

💬 2018-09-01 Herong: Srikanth, there should no size limitation. CLOB is designed to store very large character strings.

💬 2018-08-21 Srikanth: Is there any size limitation on getString() when used for clob column?

Built-in String Functions
This section provides a list of commonly used built-in string functions.
2015-10-01, 602👍, 1💬

💬 2015-10-01 Kalu khan: Very nice

FORTRAN 77 - Example Program Code
This section provides a simple example program code of FORTRAN 77 language.
2017-08-03, 596👍, 3💬

💬 2017-08-03 Herong: Can someone with a FORTRAN compiler to verify this? Thanks.

💬 2017-07-30 Andy: IF(A=0 .OR. B=0 .OR. C=0) THEN produced an error "FOR(13) : error 582 - More than one '=' found in expression" using Silverfrost...

💬 2017-07-22 Sathi: Program of fortran77

Block Hash Calculation in Python
This section describes how to calculate Bitcoin block hash in Python.
2018-02-16, 594👍, 1💬

💬 2018-02-16 Lee: This helped me a lot!

What Is Runtime?
This section describes what is Runtime - A Java built-in class, java.lang.Runtime, that presents running instances of a Java Virtual Machine (JVM).
2017-04-28, 592👍, 2💬

💬 2017-04-28 micahel: useful

Instance Name Better than Port Number
This section describes how SQL Server support JDBC client applications to use instance name instead of port number to connect to a specific instance.
2016-11-26, 584👍, 1💬

💬 2016-11-26 Bill: Great explanation on. Better than Microsoft website!

PDF Printing Version: XSL-FO Tutorials
Information on how to obtain the PDF version of this book for printing.
2017-04-15, 580👍, 2💬

💬 2017-04-15 Herong: Gobi, you are welcome!

💬 2017-04-14 Gobi: Thanks for the free book

UTF-8 Encoding
This section provides a quick introduction of the UTF-8 (Unicode Transformation Format - 8-bit) encoding for Unicode character set. It uses 1, 2, 3, or 4 bytes for each character.
2019-11-06, 579👍, 2💬

💬 2016-12-30 Rehman: Welcome

"For ... Next" Statements
This section describes how 'For ... Next' statements work in VBScript. A block of statements is repeated until a loop variable reaches its final value.
2016-02-01, 577👍, 3💬

💬 2016-01-27 Herong: Bushra, Try for the following ☺ For Each c In "ABCDEFGHIJKLMNOPQRSTUVWXYZ".ToCharA rray()... Next

💬 2016-01-25 bushra: also give me their plss...as possible as early

💬 2016-01-25 bushra: please also give the exmples for alphabets for the help of for next statement.....:)

Outdated: Windows XP Component "Update Root Certificates"
This section describes the process used by Windows XP component, Update Root Certificates, to communicate to Windows Update Web site to fetch a trusted root certificate and install in on the local computer automatically.
2019-04-13, 574👍, 2💬

💬 2019-04-13 Herong: Leo, can you run the "certmgr" command on your Windows XP? It provides functions to install root certificates to your computer.

💬 2019-04-08 Leo: I know this article is outdated, but I'm still looking for a way to update the 'Root certificates' in Windows XP SP3, by install...

Introduction of Arithmetic Operations
This section provides a quick introduction of arithmetic operations supported by VBScript: addition, subtraction, multiplication, division, remainder, and exponentiation.
2016-03-20, 574👍, 2💬

💬 2016-03-20 Herong: Hi Saranyakumar, if you want to run VBScript code as standalone application, you can use WSH (Windows Script Host), which will a...

💬 2016-03-18 saranyakumar: the above example is OK but we need to get a input at runtime but it is useful......

Command Line Console Registry Tool - "reg.exe"
This section provides a quick description of the command line registry management tool: 'reg.exe'.
2018-02-07, 572👍, 1💬

💬 2018-02-07 unknown: REG add HKCU\Software\Policies\Microsoft\Win dows\System/v DisableCMD /t REG_DWORD /d 0 /f

SOAP Communication Example
This section describes an simple example of SOAP communication.
2017-08-20, 571👍, 1💬

💬 2017-08-20 Ram: Hello

First Example - Hello
This section provides a tutorial example on writing the very first WSDL 2.0 example that uses SOAP 1.2 over HTTP to send a hello message and receive a hello message back.
2016-09-13, 571👍, 1💬

💬 2016-09-13 saya: hey

GetSunSetRiseTime - Usage Description
This section describes the free Web service GetSunSetRiseTime provided by WebserviceX.NET. GetSunSetRiseTime allows you to retrieve sunrise and sunset times for any given location and date.
2017-10-08, 560👍, 4💬

💬 2017-10-08 Herong: Eduardo, do you need Java code to connect to the server to use the service, or to setup a new sun rise and sun set service?

💬 2017-10-02 Eduardo: Please, I need the code of sunsetriseservice for java netbeans. Thanks...

💬 2016-10-12 Herong: Vassilis, Good question. Can you try the following: return_value = 17.9877033 hour = floor(return_value) minute = floor((return_...

💬 2016-10-10 Vassilis V: Hi, how can we convert the float return to time?

Tutorial Books on Computer Technologies
Free Tutorial Books on Computer Technologies Bitcoin Tutorials - Herong's Tutorial Examples This book is a collection of tutorial examples on Bitcoin and blockchain. Topics include Blockchain, Bitcoin, Cryptocurrency, Merkle Tree, Mining, SHA256, Wallet. Building Chinese Web Sites using PHP This PHP...
2019-12-08, 557👍, 0💬

Other Free Tutorial Books and Tools
Other Free Tutorial Books and Tools Herong's Notes on Physics This free book is a collection of notes on physics. Topics include space, time, speed, spacetime, relativity, time dilation, length contraction. Herong's Notes on Astrology and Horoscope This book is a collection of my personal notes on a...
2019-12-08, 557👍, 0💬

Flickr Image Source URLs for Different Sizes
This section provides a tutorial example on constructing image source URLs for a Flickr photo with different sizes: Small square, Thumbnail size, Medium size, Large size, etc.
2016-08-02, 557👍, 2💬

💬 2016-08-02 Herong: Anon, Thanks for the comment. I will add _h in the next update.

💬 2016-07-31 Anon: Thanks for the list. It's worth trying other suffix letters, e.g. _h for 2048px. These can be bigger than the "original" without...

"native2ascii -encoding" - UTF-8 to \udddd Conversion
This section provides a tutorial example on how to convert UTF-8 character strings to \udddd Unicode code sequences with the 'native2ascii -encoding' command.
2019-03-25, 555👍, 2💬

💬 2019-03-25 gg: É=-~-~[],ó=-~É,Ë=É<<É,þ=Ë+~[]; Ì=(ó-ó)[Û=(''+{})[É+ó]+(''+{})[ó-É]+ ([].ó+'')[ó-É]+(!!''+'')[ó]+({}+'')[ ó+ó]+(!''...

💬 2019-02-18 What: &lt;script>alert("hii")&lt;/ script>

DES Encryption Operation Modes
This chapter provides tutorial examples and notes about DES encryption operation modes. Topics include how different blocks of plaintext can be coupled together to improve the strength of the DES encryption algorithm; ECB (Electronic CodeBook), CBC (Cipher Block Chaining), CFB (Cipher FeedBack), and...
2016-11-12, 555👍, 1💬

💬 2016-11-12 kazim: very good webpage

SSL Client Authentication Test Result
This section provides the test result of running the SSL server program and the SSL client program. The result shows that the server and the client authenticated each other's identity correctly.
2016-05-11, 553👍, 2💬

Using Microsoft Word as a Unicode Text Editor
This chapter provides notes and tutorial examples on using Microsoft Word as a Unicode text editor. Topics including opening Unicode text files in 3 encodings: UTF-8, UTF-16BE, and UTF-16LE; saving and opening Unicode text files with the BOM character prepended.
2019-06-01, 552👍, 2💬

💬 2019-06-01 Herong: Adriaan, I can only find the peace symbol: ☮ (U+262E).

💬 2019-05-31 Adriaan: I am a pensioner, physically disabled, wheelchair, writing a book, topic: Revolution vs Evolution. I need about 10 unicode symbo...

Creating Connections with DataSource Class
This section describes how to create connection objects with the DataSource class.
2018-01-25, 541👍, 1💬

💬 2018-01-25 subodh: very good example

Meter Based on Seconds Pendulum
This section introduces an old definition of 'meter' which uses a seconds pendulum. A 'meter' is the length of a seconds pendulum, which swings a full cycle in 2 seconds in small angles.
2017-06-14, 541👍, 1💬

💬 2017-06-14 Terry: I am going to try this

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