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I saw two articles, "30 types of U disk capacity in Beijing" shrunk "on the black list of Kingston" and "Consumer Association", saying that U disk shrinkage is not common sense: wrong Statistical Methods: The measurement unit GB is not accurate in both articles. Here are some of my views. First, let's quote a paragraph in Wikipedia. It is an information measurement unit. It is a type of measurement unit, nowadays, it is usually used to mark the sto
In Oracle 10 Gb system management, there is an automatic SGA memory management ASMM ). This function is described as follows: To use automatic management, you need to set the parameters SGA_TARGET, STATISTICS_LEVEL = TYPICAL or ALL. Because the statistics set is not supported, the database does not have the necessary historical information to determine the size ). In Oracle9i and earlier versions, you can only use manual SGA memory management. The SGA
Today, we can see that a high-profile mysql database is about 6 GB, and the import is a problem, and the upload is quite troublesome. here we will share with you to make it easier for you. Today, we can see that a high-profile mysql database is about 6 GB, and the import is a problem, and the upload is quite troublesome. here we will share with you to make it easier for you. Tool selection I. Sqlyog is
php5.2 's new JSON functionality is very popular, but it has been tested and found Json_encode's handling of Chinese is problematic, 1. GB encoding cannot be processed, all GB encodings are replaced with null characters. 2.UTF8 encoded in Chinese is encoded as Unicode encoding, which is equivalent to the result of JavaScript's escape function processing. Copy CodeThe code is as follows: /* In order to use
I don't know when to start, there is a saying on the network that the partition for installing Vista cannot be less than 15 GB. As a result, this statement has been spread across 10 and 10, and gradually becomes the "only standard ". However, I have always had doubts about "true", so I found a time to practice it myself. I did a test on IBM t42. The general hardware environment and system environment are as follows: IBM t42 Model
The folder size in the USB flash drive is dozens of GB. The folder size is garbled and cannot be deleted. Today, I inserted a USB flash drive on my classmate's computer and copied a video file. Later, I installed the system and used the USB flash drive to copy the driver file, but I couldn't install the copied driver file, A black window always disappears. I started to suspect that the driver file was damaged. Then I decompressed the driver file on m
I have a 60 GB Kingston solid state drive, tested the difference between 4 K partition alignment and found that the performance is very different, not to mention, first, the software optimization and testing software below, download URL:There is no running score with 4 K partition alignment firstNote that 31 k-BAD means that 4 k does not mean alignment.650) this. width = 650; "src =" http://www.bkjia.com/uploads/allimg/131227/19141355V-0.png "border =
json_encode to Chinese processing is a problem, not processing GB encoding, all GB code will be replaced with empty characters, there is a good solution, you can refer to the following php5.2 's new JSON feature is very popular, but tests have found that,nbsp; Json_encode has a problem with Chinese processing,nbsp; 1. GB encoding cannot be processed, and all
In the computer newspaper, I saw that ABN Amro's 20 data centers have about 7PB of disk and more than 20PB of tape storage, and the annual 50%~70% growth of storage, So I want to see how big the PB is, and calculate the 27PB size of the hard disk about 400,000 80. 1Byte = 8 Bit (0,1) 1 KB = 1,024 Bytes (size of a shortcut) 1 MB = 1,024 KB = 1,048,576 Bytes (size of one floppy disk) 1 GB = 1,024 MB = 1,048,576 KB = 1,073,741,824 Bytes (size of an AVI m
This article describes how to correctly install the Oracle 10g operating solution in redhat linux. In fact, many people do not understand what g in Oracle 10g means. In fact, it is the abbreviation form of grid, which means grid. Currently, it is a cutting-edge network computing technology. Oracle 10g has very high requirements on hardware and software, so it takes a lot of money to make fun of it. First, let's take a look at its hardware requirements: 1 GB
How to count the frequency of each word in a 2 GB file? when a beginner encounters a problem, count the frequency of each word in a 2 GB file, after modifying the memory limit, the error "Allowed memory size of xxxx bytes exhausted" is still reported. The total number of lines or characters in the test can be output. how can this problem be optimized? ini_set("memory_limit", "-1");function calcWordFrequence
In the IP address- gt; in the evaluation of geographic location conversion, the article mentions that using the ip2addr function to directly read IP addresses is the most efficient to directly read IP database files using the ip2addr function in the evaluation of IP address-> geographic location conversion., compared to using a MySQL database to store IP data, SQL queries are the most efficient. However, the IP database file QQWry. dat is GB2312 encoded. Now I need the geographic location result
Linux personal disk partitioning scheme (20 GB) host configuration I3 Virtual Machine 1 GB memory 20 GB hard disk capacity/boot 100 M storage files necessary to start the Linux system, including kernel files, boot menu configuration files, and other www.2cto.com/2G system root directory/tmp 4G stored some temporary file/swap 2G swap file systems used during syste
Collected and sorted out a perfect installation tutorial for Oracle 10 Gb in CenotOS Linux 5. Share your friends! Author: David Young (e4twood@gmail.com) Last Update: 2008-1-10 System Environment: CentOS Linux 5 Final Oracle Enterprise 10g R2 Hardware environment: CPU: Intel Pentium Dual-core @ 1.60G Memory: DDR 667 1G * 2 Dual channels HandDisk: SATA 160G I. Software Download CentOS Linux 5 Final: http://ftp.cse.yzu.edu.tw/pub/CentOS/5.0/isos/i386/ O
6 GB database import reports various errors solution bitsCN.com Tool selection I. Sqlyog is a powerful tool, but in the face of a 5G database, it can only strike, simply put, the local import can be, from the local import server can not. II. Phpadmin comes with this, but it's okay, but it's never used in the end, because it's invisible, because up to 50 MB, although you can modify the configuration file to upload but 5
In the evaluation of IP address- gt; geographic position conversion, ip2addr function is the most efficient function to directly read IP database files. compared with MySQL database, SQL queries are the most efficient. However, the IP database file QQWry. dat is GB2312 encoded. Now I need the geographic status results of UTF-8 encoding. If MySQL is used, data can be converted The article "IP address-> geographic status conversion evaluation" mentions that using the ip2addr function to directly r
PHP on several methods of dynamic conversion of GB encoding to UTF-8 evaluation. The article "IP address-Geographic location conversion evaluation" mentions that using the ip2addr function to directly read IP database files is the most efficient. compared with using the MySQL database to store IP data, SQL query is the most efficient way to use the ip2addr function to directly read IP database files. compared with MySQL database, SQL queries are the m
The computer on hand is still a second-hand machine bought in Kunming. It has been almost four years since, with M memory and 60 GB hard drive, when I first bought it, I had already fallen behind the times. Now, I am about to enter the ranks of antique machines. Finally, I thought about it and planned it. With the help of my colleagues, I moved my host back from the computer market. AMD dual-core, GB hard
According to foreign media reports, the Research Institute iSuppli recently said that Google's upcoming free network storage space may be as high as 50 GB. Google's network storage space will reach 50 GB At the end of November, it was reported that Google would launch the network storage service, allowing users to store files on Google servers on local computers. This service is free of charge, but u
. It is more concise and readable than multi-threaded code. This project was launched by EVE Online and is indeed strong in concurrency and performance. Similar to Python, you can consider replacing Python with the original system. :) Why MongoDB? Http://www.mongodb.org We can see many popular apps using MongoDB on the official website, such as sourceforge and github. What are the advantages of RDBMS? First, the advantage in speed and performance is the most obvious. It can be used not only as a
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