MyBatis BULK INSERT, batch update

Reasonable use of bulk inserts, updates on performance optimization has a great effect, the speed is significantly faster than n times. Note the addition of the database connection string: &allowmultiqueries=true, which means that a single SQL can

UVA 10891 Game of Sum

Original question: This is a and the player game. Initially there is n integer numbers in an array and players A and B getChance to take them alternatively. Each player can take one or more numbers from the left or right endof the array but cannot

Migrating FRS to DFSR SYSVOL

As of June 20, 2017, the Windows RS1 system supports FRS for the last edition, and subsequent versions will no longer contain this feature, see

Springboot Connection Database error Testwhileidle is true, Validationquery not set

Problem Description:Use Springboot connection database, start error: Testwhileidle is true, Validationquery not set. But does not affect the system use, the database and so on all access is normal.The Application.properties data source is configured

VARIANT, _variant_t, CComVariant, COleVariant, cdbvariant

Reference articlesHttp://blog.163.com/[email protected]/blog/static/16219623020107634935586/http://blog.csdn.net/dreamcs/article/details/7186633Http://blog.sina.com.cn/s/blog_6c3d32da0100ua13.htmlCOleVariant is the data type that the database is

Google face questions-there are four threads 1, 2, 3, 4. The function of thread 1 is output 1, the function of thread 2 is output 2, etc... There are now four file ABCD

Category: Windows programming C + + 2012-10-27 19:56 3410 people read reviews (1) favorite reports There are four threads of 1, 2, 3, 4. The function of thread 1 is output 1, the function of thread 2 is output 2, etc... There are now four file

[Repost] Use CryptoAPI to parse X509 certificate and P12 certificate

The original is in http://bbs.pediy.com/archive/index.php?t-97663.html, but I think this article is very good, I copied down to make my notes withI. Analysis of X509 certificate 1. Read the certificate data from the certificate file on diskunsigned

Codeforces 622F. The Sum of the k-th Powers Lagrange interpolation method

Topic linksAsk Sigma (I:1 to N) i^k.In order to do this question these two days really fill up a lot of number theory, before even multiplication inverse yuan do not know ...About Lagrange interpolation, I'm looking at the http://www.guokr.com/post/4

Agar.io How to Play

Agar.io is a web game, Its main game mode is very similar to feeding frenzy, where players play a similar cell-like thing by absorbing (eating!). Other small cells evolve into larger cells. Find no registration, just fill in the ID to start the game.

How to convert Word to Pdf-word PDF Tutorial Demo

People often need to make a variety of beautiful PDF files, and everyone knows that PDF files are difficult to edit, so you usually edit the content in Word, and then use some tools to convert Word to PDF, but how to convert Word to PDF? Here we

Brief introduction of Wayland and Weston

Original address: http://blog.csdn.net/jinzhuojun/article/details/46794479To put it simply, Wayland is a set of communication protocols between the display server (Wayland compositor) and the client, and Weston is the reference implementation of

Fluent Mesh file Format Simple description

Fluent mesh file is the default grid file of the fluent software, which mainly includes the geometric information of the mesh, divided into dimensions, nodes, faces, cells, zones and so on. The data of the Fluent mesh file is organized according to

Tcpreplay tool Installation and use

A. Introduction to Tcpreplay featuresFirst recommend a website:http://tcpreplay.synfin.net/ , which has tcpreplay installation packages and many documents, including manuals, man pages and FAQs.Tcpreplay is a generic term for a range of tools,

Google Search Skills challenge privacy (Google hacker)

gpg

Google Hacking originally refers to the technology and behavior that uses Google search engine search information for intrusion. Currently, it refers to the technology and behavior that uses various search engine search information for intrusion.

Day 4: loop structure (while, do... While,)

1. Loop Structure (while, do... While,) 1.1. What is a loop structure In daily life, there will be a lot of things that need to be done repeatedly, such as four seasons of every year, 7 days of every week, 3 meals a day, and 50 copies of each

Overview of BMP, GIF, JPEG, PNG, and other image formats

BMP format BMP is short for bitmap. It is a standard image file format in windows and can be supported by multiple Windows applications. With the popularity of the Windows operating system and the development of a wide range of Windows applications,

IPhone 5 is nothing new-apple seems to be taking advantage

I think many people will feel the same as me after the iPhone 5 release-disappointed. There are almost no new things apart from hardware and shape changes (no wonder someone says the iPhone 5 is a long-drawing iPhone 4S ). Although the operating

When the DNS server performs the NSLookup test, the DNS timeout 2 seconds error message is displayed.

Recently, my colleague reported that during the NSLookup test on the Intranet, I found that when I used the Intranet DNS server 192.168.1.1 for resolution, the DNS server responded very quickly and did not Any errors. However, when the DMZ server 51.

Chapter 2 procedural performance tuning of PL/SQL applications

Chapter 2 procedural performance tuning of PL/SQL applications I. Reasons for PL/SQL Performance problems When the execution efficiency of PL/SQL-based applications is low, it is usually caused by poor SQL statements and programming methods,

Test the port used to connect to the SMTP server via Telnet (1)

Many settings contain multiple protocols. Just like the port on which Telnet is connected to the SNMTP server we will explain today. How can this problem be solved? Next we will explain in detail how to telnet to port 25 on the computer running the

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