The difference between JDBC and ODBC, perception, learning ...

Tags: What is JDBC? JDBC, called Java Database Connectivity Standard, is an object-oriented application interface (API) that allows access to a variety of relational databases. JDBC is also part of the Java Core Class library. The most important

An understanding of the KMP algorithm

Label:1. IntroductionLocating a small substring in a large string is called a pattern match of a string, which should be considered one of the most important operations in a string. The KMP itself is not complicated, but most of the articles on the

Decision Tree: ID3 and C4.5 algorithm

Label:1. Basic Concepts1) Definition:A decision tree is a predictive model; He represents a mapping relationship between object properties and object values, which represents a possible property value for each node in the tree.2) Representation

Massive data plane question----divide and conquer/hash map + hash Statistics + heap/quick/merge sort

Label:1, from Set/map talked about Hashtable/hash_map/hash_setLater in the second part of this article will refer to hash_map/hash_set several times, the following a little introduction to these containers, as the basis for preparation. In general,

Euclid and the extended Euclidean algorithm

Label:Turn from online Daniel Blog, speak of easy to understand.Original address: http://www.cnblogs.com/frog112111/archive/2012/08/19/2646012.htmlEuclidean algorithmEuclidean algorithm, also known as the greatest common divisor method, is used to

Varnish Getting Started

Label:This article describes the varnish workflow, installation, and configuration of the varnish three aspects of the content. First, we briefly introduce varnish and its workflow, understand its internal principle, then introduce the installation

User Role grouping using license

Tags: Lanmantech license management licmanager system license scheduling license using data analysisUser Role grouping using licenseUser Role grouping is an important function of user management in Licmanager system. All users of the system default

Leetcode | | Roman to Integer problem

Tags: roman numerals Leetcode mapProblem:Given a Roman numeral, convert it to an integer. Input is guaranteed to being within the range from 1 to 3999.Convert Roman numerals to integersThinking:(1) Roman numeral rules: There are 7 Roman numerals,

(Hdu step 7.1.5) Maple trees (radius of the minimum cover circle for convex hull)

Label:Topic: Maple Trees Time limit:1000/1000 MS (java/others) Memory limit:32768/32768 K (java/others) Total submission (s): 177 Accepted Submission (s): 63 problem

Storage Technology fundamentals-storage architecture and raid

Tags: managing system technology Server network capabilities1. Server and Storage System Server: provides compute power and service for network requests. Storage System: storage device + Storage Management System +raid Disk system,

"Reprint" Talk about cookies

Label:0x00 IntroductionIn the history of Web technology, the advent of cookie technology is a major change. However, Cookie technology is a very controversial technology, from the date it was born into a vast network of users and web developers of a

OCCI handling different types of char string variables

Tags: Oracle char OcciIssue Background :An old application, the original application is written in proc, 9i Library, now the application needs to use OCCI instead, which has a query logic: SELECT ... where upper (state) =upper (: 1).(Please do not

Codeforces 277A Learning Languages (and set)

Tags: codeforces and check setA. Learning LanguagesTime limit per test:2 secondsmemory limit per test:256 megabytesthe "Bercorp" Company has got N employees. These employees can use m approved official languages for the formal correspondence. The

A program-to-print Fahrenheit-celsius table with floating-point values

Tags: c c language Floating-point and integer division printf width and precision widths and precisionGo to my personal blogAnother program to print Fahrenheit-celsius table with decimal integerThis program is presented as below.#include <stdio.h&

How to set the kernel dump

Label:about how to set up kernel dumps1. Kernel dump function(1) The greatest benefit of a kernel dump is the ability to save the state when the problem occurs.(2) As long as the executable file and the kernel dump, you can know the status of the

struct Timeval and Gettimeofday ()

Label:Http://www.cppblog.com/lynch/archive/2011/08/05/152520.htmlThe struct timeval struct is defined in time.h as: struct Timeval {time_t tv_sec;/* Seconds. */suseconds_t tv_usec;/* microseconds. */}; Where Tv_sec is epoch to the number of seconds

How to talk to customers about price

Label:How to talk to customers about priceDo foreign trade friends know that the price is not around the factors, with suppliers need to talk about the price, with the guests need to talk about the price, with the freight Forwarding company Express

The road to high scalability (tweet)----A tweet to support the architecture of 150 million active users, 300,000 QPS, 22MB per second firehose, and 5 Seconds of push information

Label:Original link: http://highscalability.com/blog/2013/7/8/the-architecture-twitter-uses-to-deal-with-150m-active-users.htmlWritten on July 8, 2013, translated as follows:The toy-like approach to "solving the challenges of Twitter" is a common

"OpenGL Basics"--encapsulating OpenGL functions with object-oriented methods (three)--drawing rectangles

Tags: OpenGL Rectangle Object-oriented encapsulationToday's implementation is to draw a rectangle on the Window object, and you can customize the coordinates of the rectangle, the length width, the color of the border's size, whether it fills, and

Share this book "Activiti" and links to several workflows

Tags: activiti workflowNow make the work flow, open source many use Activiti, but the related Chinese book actually not much, in when when found a copy, temporarily did not download to PDF piracy, read the catalogue is good, especially from the

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