256 gigabytes

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Disk Cleanup Tips in Windows

this, go to the Control Panel, open the Programs and features window, and see a list of installed software. The size column shows that each application occupies an entire disk-something that is often dispersed across multiple disk locations in the total size of the program files. It is easy to see if an application takes up too much space and decides whether to uninstall it-or, if it is a modular installation, just remove some components. The complete installation package for Microsoft office a

Oracle Basic data types

the following information: Century, year, month, date, hour, minute, and second. Typically consumes 7 bytes of storage space. 3.2 Timestamp type This is a 7-byte or 12-byte fixed-width date/time data type. It differs from the date data type because timestamp can contain fractional seconds, and timestamp with fractional seconds can hold up to 9 digits to the right of the decimal point 3.3 TIMESTAMP with time zone type This is a variant of the timestamp type, which contains the value of the time

Oracle Basic data types

date data type because timestamp can contain fractional seconds, and timestamp with fractional seconds can hold up to 9 digits to the right of the decimal point3.3 TIMESTAMP with time zone typeThis is a variant of the timestamp type, which contains the value of the time zone offset3.4 TIMESTAMP with LOCAL time zone type3.5 INTERVAL year to Moth3.6 INTERVAL Day to SECONDfour. LOB TypeThe built-in LOB data types include large and unstructured data such as blobs, CLOB, NCLOB, BFILE (external stora

Summary of Oracle database types

. CLOB objects can store up to (4 gigabytes-1) * (database block size) characters4.2 NCLOB Data typeIt stores data of the Unicode type, supports fixed-width and variable-width character sets, and Nclob objects can store text data up to (4 gigabytes-1) * (Database block size).4.3 BLOB data typeIt stores unstructured binary data large objects, which can be thought of as a bit stream without character set sema

Oracle data types

of storage space.3.2 Timestamp typeThis is a 7-byte or 12-byte fixed-width date/time data type. It differs from the date data type because timestamp can contain fractional seconds, and timestamp with fractional seconds can hold up to 9 digits to the right of the decimal point3.3 TIMESTAMP with time zone typeThis is a variant of the timestamp type, which contains the value of the time zone offset3.4 TIMESTAMP with LOCAL time zone type3.5 INTERVAL year to Moth3.6 INTERVAL Day to SECONDfour. LOB T

Basic LCD knowledge

value after compression or the original color value, depending on the display mode selected by the LCD controller. In color mode, the original color value is a 16-bit RGB color value, including Red 5, Green 6, and Blue 5 (because human eyes are sensitive to Green, so Green occupies one more place. A 16-Bit Data describes the color of a pixel on the screen. The color values of the compressed encoding can be described with a small number of BITs. Reducing the color data volume of each pixel can i

Steps for importing qq ip pure database to SQL-original

ipinfo setIpstar2 = substring (ipstarnew, 0, charindex ('.', ipstarnew )),Ipstarnew = substring (ipstarnew, charindex ('.', ipstarnew) + 1, Len (ipstarnew )),Ipend2 = substring (ipendnew, 0, charindex ('.', ipendnew )),Ipendnew = substring (ipendnew, charindex ('.', ipendnew) + 1, Len (ipendnew ))/* Obtain the second IP Address */ /* Obtain the third IP Address */Update ipinfo setIpstar3 = substring (ipstarnew, 0, charindex ('.', ipstarnew )),Ipstarnew = substring (ipstarnew, charindex ('.', ip

Conversion of IP addresses using bit operations

1) The IPV4 address is a 32-bit binary number, usually divided by 4 "8-bit binary number", for convenience, usually in the form of "dotted decimal" (a.b.c.d), where a,b,c,d are the decimal integers between 0~255, in addition, An IP address can also be represented by an integer t of 3, and the method of calculating T is based on a,b,c,d in dotted decimal:T=a*256*256*256

Steps to implement from IP jump to the user's city

According to IP jump to the user's city automatically identify IP, and jump to the arrival of visitors in the city First go to the next most innocent IP database, and then do the following: 1. Run pure QQIP database with ShowIP.exe, point decompression, input file name, such as IP.txt, OK, get a txt file. 2. Open access, tools-Custom, Command tab, drag the Import options to the toolbar above. 3. Build a library, build a table, four fields StartIP Type: Text (IP segment information for the r

Nodejs Crypto module MD5 and HMAC encryption

-cbc-hmac-sha256’, ‘aes-128-ccm‘, ‘aes-128-cfb’, ‘aes-128-cfb1’, ‘aes-128-cfb8’, ‘aes-128-ctr‘, ‘aes-128-ecb’, ‘aes-128-gcm‘, ‘aes-128-ofb’, ‘aes-128-xts’, ‘aes-192-cbc’, ‘aes-192-ccm‘, ‘aes-192-cfb’, ‘aes-192-cfb1’, ‘aes-192-cfb8’, ‘aes-192-ctr‘, ‘aes-192-ecb’, ‘aes-192-gcm’, ‘aes-192-ofb’, ‘aes-256-cbc’, ‘aes-256-cbc-hmac-sha1’, ‘aes-256-cb

Steps for implementing IP jumps to the user's city _access

First go to the next most innocent IP database, and then do the following: 1. Run pure QQIP database with ShowIP.exe, point decompression, input file name, such as IP.txt, OK, get a txt file. 2. Open access, tools-Custom, Command tab, drag the Import options to the toolbar above. 3. Build a library, build a table, four fields StartIP Type: Text (IP segment information for the relevant city) EndIP Type: Text (IP segment information for the relevant city) Country Type: text (related city name) Reu

Automatic script for filing IP verification

/url.csv|awk ' nr>1 ' |whilereadicpurlicpipicpdhicpsjicpyj# Read each column value in Url.csv row by line and assign a value to the variable doipa=$ (ping $ICPURL -c 1|awk ' {print$3} ' |head-1) #获取域名解析的IP地址IPB =${ipa//(/}destip=${ipb//)/}# Remove the parentheses symbol in the resolved IP address if[ "$DESTIP" != "$ICPIP" ];then# determine if the IP address is the same as that in the filing system Echo "$ICPURL", "$ICPIP", "$DESTIP", "$ICPDH", "$ICPSJ", "$ICPYJ" >>/tmp/beian/ipdiff.csv# export

PHP implements IP address conversion to integer numeric instance _php tutorial

IP address translation in the integer data and then saved to the database, this is a common practice, we convert the IP algorithm is Intip = 256*256*256*w + 256*256*x + 256*y + Z can be, the following to give you students to intro

Block size and partition maximum capacity single file maximum capacity relationship

the number. For example, the 1.3.2 indirectly just takes a block to record the extra number. Similarly, if the file continues to grow, then the so-called double-indirect, the first block will only point out where the next record number of blocks, the actual record in the second block. And so on, three indirectly is to use the third block to record the number! How many blocks can be specified by this sub-inode? We illustrate this with a smaller 1K block, which can be specified as follows:

Detailed parameters of each video card

Http://itbbs.pconline.com.cn/topic.jsp? Tid = 582156 topicpage = 1 Early-Stage video cards generally only specify the default core/Display memory frequency, while the Display memory capacity is generally specified in the White Paper only for the minimum and maximum supported capacity. Later, the specific capacity is specified based on the model. NVIDIA series graphics card detailed parameters: Detailed parameters of ATI series graphics cards: Supplement: I added some release notes and s

Steps for redirecting from an IP address to a user's City

First go to the next latest pure IP database, and then perform the following operations: 1. Run showip.exe in the pure qq ip data library, click extract, and enter the file name, such as ip.txt. Then, you will get a TXT file. 2. Open ACCESS, tool-custom, command tab, and drag the import option to the toolbar above. 3. Create a database and a table with four fields Startip type: Text (IP segment information of the relevant City) Endip type: Text (IP address segment information of the relevant Cit

Steps for redirecting from an IP address to a user's City

Steps for redirecting from an IP address to a user's City Jump to the user's City Based on the IP address to automatically identify the IP address, and jump to the city where the visitor is located First go to the next latest pure IP database, and then perform the following operations: 1. Run showip.exe in the pure qq ip data library, click extract, and enter the file name, such as ip.txt. Then, you will get a TXT file. 2. Open ACCESS, tool-custom, command tab, and drag the import option to the

Shell script implementation to determine whether the IP address in an IP segment code sharing

This article mainly introduces the shell script to determine whether the IP address in an IP segment code sharing, this article directly to the implementation code, the need for friends can refer to the ? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20-21 Cat ipcalc.sh #!/bin/bash ip=$1 If [-Z $IP] then echo-e "e[31;42m sh ipcalc.sh IP e[0m" Exit fi while read MASK do min= '/usr/bin/ipcalc $MASK |awk '/hostmin:/{print $} ' max= '/usr/bin/ipcalc $MASK |awk '/hostmax:/{print $

The ASP automatically recognizes IP and jumps to the city where the visitor is located

Automatically identify IP and jump to the visitor's city first go to the next pure IP database, and then do the following: 1. Run pure QQIP database with ShowIP.exe, point decompression, input file name, such as IP.txt, OK, get a txt file. 2. Open access, tools-Customize, Command tab, drag the Import options to the toolbar above. 3. Build a table, four fields StartIP type: Text (IP segment information for related cities) EndIP Type: Text (IP segment information for related cities) Country

Php query IP location (dat database)-pure IP database-PHP source code

compression. Multiple references are allowed. Var $ fp; var $ FirstStartIp = 0; var $ LastStartIp = 0; var $ EndIpOff = 0; function getStartIp ($ RecNo) {$ offset = $ this-> FirstStartIp + $ RecNo * 7; @ fseek ($ this-> fp, $ offset, SEEK_SET ); $ buf = fread ($ this-> fp, 7); $ this-> EndIpOff = ord ($ buf [4]) + (ord ($ buf [5]) * 256) + (ord ($ buf [6]) * 256*256

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