bulk hardware

We know that there is an overhead for running SQL statements in PL/SQL programs, because SQL statements must be submitted to the SQL engine for processing. The transfer of control between PL/SQL engine and SQL engine is called context change, but each change has additional overhead. See: However, forall and bulk collect allow the PL/SQL engine to compress multiple contexts into one, this causes the time required to execute the SQL statement to proce

SQL Server's BULK INSERT statement can import local or remote data files into a database in batches, very quickly. The remote file must be shared before the file path should use the Universal Convention (UNC) name, which is the form of "\ \ server name or ip\ share name \ path \ file name."* 1. Because BULK insert is often more convenient to bulk import data with

Linux core-hardware basics-Linux general technology-Linux programming and kernel information. The following is a detailed description. The operating system must work closely with the basic hardware system. It requires services that can only be provided by hardware. To fully understand the Linux operating system, you must understand some

The router system is a combination of hardware and software. The hardware can be an ARM kernel, MIPS kernel, PPC, or Intel CPU. This core part is equivalent to the CPU of the PC we use. A pc generally only needs one Nic, but the router needs multiple NICs. Currently, most PC NICs are connected to the CPU bus through the PCI bus, and all data exchange needs to be processed by the CPU. However, in the design

Someone told me that hardware is more reliable than software.This sentence is wrong. I will prove it below.If the hardware is reliable,And our program logic is correct,A program that runs logically correct on a reliable hardware,There is no reason to say that it is less reliable than the underlying hardware,There is no

Preface All sections earlier in this chapter describe the impact of the software environment in the entire system on the system performance. In this section, we will analyze the impact on the database system from the system hardware environment, we also provide some targeted optimization suggestions from the perspective of database server hosts. The hardware environment of any system plays a key role in

not.Linux support for hardware switchingRemember last year, I once got a swap board, can be plugged directly on the motherboard pci-e, at that time must use the manufacturer-specific drivers and with VLAN technology to use them. In fact, many switches may use Linux as a management plane and control plane, and then configure their own custom hardware and custom drivers.I have thought of a way to use netfilt

Label: This is a case of last week: The problem caused by the upgrade of the existing hardware, but also triggered a more serious bug, is disastrous, but fortunately, in a chain of problems arise, there is no manual error (this is often the highest risk in dealing with the failure, affect the biggest problem) and expand the scope of failure; ========================== Gorgeous split-line ========================== Let's talk about the

In general, large network games in operation, need to occupy a lot of memory, so if you want to upgrade the computer hardware, then the first choice must be memory space, followed by other computer hardware components. 　　1, upgrade the memory Before the memory bar is upgraded, Win7 system users should first consider the issue of the system version, if the Win7 user is using a 32-bit system, then in

1. When connecting the IDE devices, you should follow the red and red relative principle, so that the power cord and the data line red edge line, so that will not be caused by plugging the hardware. 2. In the installation of hardware devices, if the interface has been inserted, you should check the connection of the interface has no direction interpolation, interpolation errors, because the wrong connectio

Win7 self-evaluation function free control hardware upgrade Configure a lower computer to run Win7 may not feel very fluent, want to change the new computer helpless bag in the shy? In fact, the Win7 system hardware requirements are not very high, if the computer loaded Win7 later feel less fluent, as long as the performance of the lower part of the hardware upg

First, introduce a web-circulated Yahoo company once used to collect hardware information script, you can view and download hwconfig here. Download Address: Https://github.com/smilejay/shell/blob/master/sh2012/hwconfig. It executes on one of my systems as follows: The code is as follows Copy Code [Root@jay-linux test-programs]#./hwconfigSummary:qci qssc-s4r, 1 x 2.27GHz, 47.1GB/48GB 1067MHz DDR3System:qci qssc-s4rProcessors

, resulting in a denial of service (denial Service). This is a very smart distributed Denial-of-service attack (distributed denial of service) Unlike a typical distributed Denial-of-service attack, the attacker does not need to look for a large number of dummy machines, and the proxy server acts as the role. Then, the computer room used hardware firewall can be a good defense against DDoS attacks? To study this problem, or first look at the domestic c

Q Voice Options What is the use of hardware acceleration in the sound. A sound sampling rate conversion, mixing, 3D hrtf space sound location, filtering and other sound-effect processing through hardware implementation is complete hardware acceleration, if you choose no is CPU acceleration, Vista only CPU acceleration. Many online tutorials, especially the so-c

=NewSqlCommand ("Select Corpid,corpno, Corpname, Corpphone, registeredaddress, Registertime, Certifygrade, Certifyno, CorporateName , Corporatephone, Licensseno, Regismoney, response, Responsephone, post, email, zip from Corp", conn)) 9 { Ten Conn. Open (); OneSqlDataReader sqlreader= cmd. ExecuteReader ();//Get Source data A stringConnStr = configurationmanager.connectionstrings["Connectionstringhouseonline"]. ConnectionString; - using(S

Abstract: In today's popular Windows operating system, device drivers are the lowest-level software interface for manipulating hardware. In order to share the experience in the process of device driver programming, 5 Methods of notification application of device driver are given, and the principle and implementation process of each method are described in detail, and some core code of implementation is given. Want to be able to provide some help to th

Software-bound Computer hardware identification is an anti-copy method used by many software. However, it is not a simple matter how to determine the unique identity of the computer hardware. The following are commonly used methods and their pros and cons.1 Method of computer uniqueness Identification 1.1 CPU serial number availabilityThe existing CPUs almost all support CPUID instructions. This instruction

The automated testing framework, by default, is for pure software and is centralized in web and app applications. Therefore, the SOFTWARE Product Automation testing framework should be accurate.This article will focus on the hardware products, the personal view of the hardware Automation testing framework.BackgroundIoT technology is evolving at a high speed, with intelligent

In software encryption protection technology, a common protection method is license authorization based on hardware fingerprint. This article will introduce the specific hardware fingerprint acquisition technology in detail and provide a demo source code program. Hardware fingerprint encryption means that after a user obtains and installs the software for free,