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System Variables Like @@version
This section provides a quick introduction on system variables, which are used by MySQL server to represent system information or control system behaviors.
2022-10-01, ∼322🔥, 0💬

Which Wallet Is Better for Me
This section discusses which Bitcoin Wallet is better.
2022-10-01, ∼322🔥, 0💬

Poisson Bracket Expression
This chapter provides an introduction of phase space and phase portrait. Topics include Poisson Bracket as a partial differential expression; Hamilton Equations in Poisson Brackets; total time derivative of observables.
2024-12-14, ∼321🔥, 0💬

SSL/TLS Secure Connections with Dovecot Server
This chapter provides introductions and tutorial examples about SSL/TLS secure connections with Dovecot server. Topics include testing SSL/TLS connections with 'openssl s_client' commands; replacing the default self-signed server certificate; requesting and installing a CA-signed server certificate.
2024-04-06, ∼321🔥, 0💬

大五碼(Big5)与Unicode的關係
大五碼 (Big5) 字元集是 Unicode 字元集的子集。但是大五碼編碼和 Unicode 編碼卻毫無關係。
2024-02-03, ∼321🔥, 0💬

Big5 to Unicode - Row EF: Level 2 Characters
Big5 to Unicode code point mapping is provided for Big5 character set - Row EF: Level 2 Characters.
2024-01-29, ∼321🔥, 0💬

Perl SOAP::Lite for NumberToWords SOAP 1.1 Web Service
This chapter provides tutorial examples and notes on calling NumberToWords SOAP 1.1 Web service using SOAP::Lite. Topics include creating SOAP::Lite client object; calling SOAP Web service as a function; using SOAP::Data to control request parameter name; setting namespace; turning on trace for debu...
2022-11-10, ∼321🔥, 0💬

RSA Public Key Encryption Tests
This section provides the test result of RSA public key encryption and private key decryption using the javax.crypto.Cipher class.
2022-10-19, ∼321🔥, 0💬

Perl SOAP::Lite for SOAP 1.2 Web Services
This chapter provides tutorial examples and notes on using SOAP::Lite for SOAP 1.2 Web services. Topics include installing SOAP 7.10; testing methods available on client objects; using soapversion() and envprefix() to generate SOAP 1.2 requests; using default_ns() to set default namespace; using DEF...
2022-10-17, ∼321🔥, 0💬

What Is MD5 Message Digest Algorithm?
This section describes what is MD5 - a message digest algorithm which takes as input a message of arbitrary length and produces as output a 128-bit 'fingerprint'.
2022-10-14, ∼321🔥, 0💬

What Is UML (Unified Model Language)
This section describes UML (Unified Model Language), which is a general-purpose modeling language that provides a standard way to model a system with the help of structural and behavioral diagrams.
2022-10-12, ∼321🔥, 0💬

What Is Public Key Encryption?
This section describes public key encryption, also called asymmetric encryption, which uses a pair of keys, a private key and a public key to encrypt and decrypt messages.
2022-10-09, ∼321🔥, 0💬

"OpenSSL" Self-Signing CA's Public Key
This section provides a tutorial example on how to use OpenSSL to generate a self-signed certificate for your public key as CA certificate.
2022-10-08, ∼321🔥, 0💬

Using DBM Database Files
This chapter provides tutorial examples and notes on DBM database files. Topics include using dbmopen() to connect a hash variable to a DBM database; example scripts of storing two and multiple columns in DBM database files.
2022-10-08, ∼321🔥, 0💬

PreparedStatement with Parameters
This section describes how to create PreparedStatement objects with Parameters.
2022-10-07, ∼321🔥, 0💬

Localization of Web Based Applications
This section describes what are involved in localization of a Web based application, which uses multiple programs: Web browser, Web server, application server, and database server.
2022-10-01, ∼321🔥, 0💬

Creating and Using Arrays - Example
This section provides a tutorial example on how to create and use an array.
2022-10-01, ∼321🔥, 0💬

Accuracy of "decimal" Data Type
This section provides a tutorial example on how to compare the accuracy of 'decimal' data type operations with 'double' data type operations.
2022-10-01, ∼321🔥, 0💬

Arithmetic Operations
This section provides a list of numeric operations supported by SQL and some examples.
2022-10-01, ∼321🔥, 0💬

Date and Time Operations
This section provides a list of date and time operations supported by SQL and some examples.
2022-10-01, ∼321🔥, 0💬

Bubble Sort - Algorithm Introduction
This section describes the Bubble Sort algorithm - A simple and slow sorting algorithm that repeatedly steps through the collection, compares each pair of adjacent elements and swaps them if they are in the wrong order.
2022-10-01, ∼321🔥, 0💬

Sorting Algorithms Implementations in Python
This chapter provides tutorial notes and codes on Python implmentations of different sorting algorithms: Bubble Sort, Heap Sort, Insertion Sort, Merge Sort, Quicksort, Selection Sort, and Shell Sort.
2022-10-01, ∼321🔥, 0💬

GCPerfP99.java - Output Verification
This section provides tutorials to verify output from GCPerfP99.java test runs. System interrupts are successfully excluded from performance calculation.
2022-10-01, ∼321🔥, 0💬

JDBC-ODBC - Problem with Incorrect DSN
This section describes what will happen if you specified an incorrect DSN in the connection URL when using JDBC-ODBC Bridge.
2022-10-01, ∼321🔥, 0💬

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