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In the development of database application based on JDBC, the management of database connection is a difficult problem, because it is an important factor to decide the application performance. Based on a thorough analysis of database connection,

The nature of relevance mapping: * Mapping an association relationship to a database, the so-called association relationship is one or more references in memory of the object model will add a foreign key at one end and point to the other, and the

Catalog is a dataset used to index other datasets on z/OS, and many times the operation of accessing the dataset on the system is catalog, so increasing the performance of each catalog on the system can directly improve the performance of the Access

Domestic independent knowledge product operating system COS is a cross terminal products, coupled with the independent research and development of the label, beautiful interface, cos attracted our eyes, especially after the prism door, cos more is a

MSD: System Detection [applicable occasions] used to check system information Usage 1. C:\>msd Return to see the following screen, add a note next to each option, indicating the function of the button 2. Select the items you want to query,

Avalondock is a. NET Library, which arranges a series of wpf/winform controls in a docking mode layout (docking). The newly released version natively supports the MVVM framework, Aero snap effects, and better performance. The Avalondock 2.0 version

With the news of Li June's two-degree imprisonment, the dormant name reappeared in an entertaining gesture, and as the leaks and prism doors escalated, hackers and cybersecurity-related topics were once again on the list of topics. 360 led the

0 hopopt IPv6 Jump option 1 ICMP Internet control messages 2 IGMP Internet Group administration 3 GGP Gateway to Gateway 4 IP (encapsulated) in IP IP 5 ST Stream 6 TCP Transmission Control 7 CBT CBT 8 EGP External Gateway Protocol 9 IGP any

The protocol analyzer is widely used in wired network and becomes a kind of useful testing and maintenance tool. In the area of WLAN, however, the problem is likely to be overlooked. The transmission medium of WLAN is electromagnetic wave, it is

This article we continue through the network analysis expert analysis system to help better solve and deal with the actual problems of the network, through its own powerful analysis system quickly locate the fault, in the first time to solve the

Telecom Support Network (Telecom munication supporting networks) A complete telephone network in addition to the transmission of telephone information based business network, but also need to have a number of services to ensure the normal operation

Introduced Guo Hua Company (not real name) is an internationally renowned system software company, its Hammer software is the company's security product line of the core system, but also the "lifeblood" of the state-China company. Small Black is a "

In the numerical calculation process, often encounter the case of rounding the results, the WPS table provides a rich rounding function, the following we have a big parade of these functions: CEILING Rounds the first parameter value up (in the

When you enter a large number in an Arabic numeral in a spreadsheet, you often don't know how big the number is, such as the number: "123456789." We have to start from a single number, count to the highest, only to know that this number represents "1

How large is the installation package for WPS Office 2007? Can you meet Office applications? A: WPS Office 2007 person version of the installation package for 23m,wps Office 2007 contains WPS text, WPS table, WPS demo three modules, fully meet the

With the popularity of home computers more and more high, ordinary inkjet printers have entered tens of thousands of households, due to the low price of ordinary inkjet printers, its function is relatively small, compared with the high-end Aurora

PowerWord friends know, in the search word interface can be selected text copied to other places. Copy and paste in English and Chinese is easy, Japanese can be troublesome-no matter where the paste, the results are garbled. Because PowerWord

The latest version of Debian has been 7.2, code-named Wheezy, (version of the Emperor Chrome has been out to 31), to be able to do the day-to-day use of Linux, Chinese input method is sure to install. Previously used is ibus-rime, but only in the

As we all know, Nagios is a monitoring system that monitors the state of the system and network information. Nagios can monitor the specified local or remote host and service, as well as provide exception notification capabilities. Nagios can be run

To fix some bugs and improve system stability, the latest Fedora Linux is finally coming out in December after a couple of weeks of skipping tickets. Fedora is an open source operating system for RHEL software testing (that is, Red Hat will absorb