Page-style memory management The CPU-page memory management unit, responsible for a linear address, and ultimately translated into a physical address. From the perspective of management and efficiency, the linear address is divided into units of a fi
virtual memory, page style, memory space, management model, separate page, physical address, directory address, th power, physical memory, active process, page directory, directory entry, table index, page memory, memory management unit, address translation, linear address, page catalog, page frames, side contentsSeptember 17
The most basic part of the hard disk is made of hard metal platters coated with magnetic media, the number of different capacities ranging from hard disc. Each disc has two sides, can record information. Disc is divided into a number of fan-shaped re
byte, hard drive, two faces, hard disk, storage media, number of bytes, th power, disk space, concentric circles, cylinder number, cylindrical surface, disc center, storage capacity, magnetic media, platters, floppy disk, cylinder head, drive structure, track disc, hard discSeptember 17
oracle tablespace is created when the command inside or Smallfile add Bigfile two parameters. The difference between the two parameters are as follows: Use Bigfile parameter space, a single data file size can reach 2 to 32 th power blocks, according
oracle, parameters, default database, th power, table space, oracle tablespace, database block, sga, parameter space, db files, bigfile, power blocksAugust 7
This is the way the human operator 24 points? ! ! ! Event reason: This evening suddenly saw a 24-point state, was scared to Heaven, which NM Jiaoren ah? Following is a piece of the state Zhu Guangming West: 24 points, counted 231,010, I LX four cards
sleep, algorithm, brother, cards, new ways, direct solution, earthquake, journey, grass, th power, metamorphosis, colombia, heaven, general solution, roommate, human operator, columbia, solution three, guangming, gun dogsMay 31
A binary tree nodes of a finite set: the set or is empty, or by a root node with two sub-trees are called the left and right sub-tree, binary tree composed of disjoint . Related Properties: 1. In the binary tree section i (i> = 1) layer up to 2 i-1 p
lt, getdata, isempty, number 1, abstract data types, related properties, endif, th power, int height, typename, root node, tree nodes, gt class, leaf nodes, n0, t amp, finite set, maximum power, full binary tree, power nodesMay 30
41. Using the function to get a few months after the date: to_yminterval ('01-02 ') that together 1 year and 2 months, not to the days! ! select hire_date, hire_date + to_yminterval ('01-02 ') as hire_date_new from employees where department_id = 20
oracle, job, sql statement, oracle sql, department id, syntax, salary, advanced applications, employee id, th power, lt 50, grp, select department, next friday, group statement, c 41May 12
/ * * * Title: Find the number of twenty-one of the daffodils * * Author: Touch * * Thinking: 1. Statistics in a twenty-digit number that appears in all digital, and now assume a three-digit, in this three-digit, 1 there 1, 5 1 or more times, 3 occur
lt, statistics, c language, composition, integers, calc, multiplication, pow, stdio, int count, occurrences, clock, th power, character array, digit number, daffodils, language titleMay 6
1,000 eggs, 10 basket, put the eggs in this basket of 10, given an arbitrary number of N <1000, asked how to place, will enable us to quickly remove the appropriate number of eggs? (This question is similar: First, the 1000 test of 10 bottles mouse p
lt, algorithm, poison, th power, fingers, arbitrary number, eggsMay 2
1, decimal -> binary Decimal numbers into binary numbers, is a continuous process than 2; The number to be converted, divided by 2 to get quotient and remainder; Will be to continue to divide by 2, until the business is 0. Finally, all the remainder
quot quot, step 1, remainder, weights, th power, end result, binary number, quotient, hex conversion, binary numbers, decimal numbersMay 1
SQL Server is stored in the string too much like, here an excerpt of the article someone to do a little analysis. Are fixed-length CHAR and NCHAR the VARCHAR and NVARCHAR variable length but the restrictions are the longest TEXT and NTEXT are variabl
variable length, byte, excerpt, chinese characters, abstract 1, point of view, 163 com, data types, high efficiency, maximum length, field index, efficiency considerations, varchar, th power, three names, storage efficiency, best buy, high storage, ntext, balance pointApril 11
linux kernel on the partner system improvements - migrate_type Transfer: http://blog.csdn.net/dog250/archive/2010/12/30/6108028.aspx linux using the buddy system-buddy underlying physical memory management, buddy can prove to be a very efficient memo
map, migration, array, old version, linux, data structure, kernel, memory management, consumers, prevention, shortcoming, th power, physical memory, memory blocks, memory fragmentation, debris, distribution strategy, system improvements, incompleteness, partner systemJanuary 19
Original post: http://www.lgsee.com/?p=47 Input 2 of the n th power: If suddenly you enter 2, 19 power, or are you still thinking about it? Leia knocked one over 524,288. With the bit operation: 1 <<19 quickly and accurately. Multiplication and divi
amp, lt 2, cross border, mask, multiplication and division, expressions, th power, bit computing, time constant, modular arithmetic, efficiency savings, digital operations, p 47December 29
Property 1: In the binary tree layer at most i-i-1 th power of 2 nodes (i> = 1). Property 2: Binary tree of depth at most 2 k k-th power minus 1 nodes (k> = 1). Property 3: A binary tree for any T, if the terminal nodes for the n0, degree 2 nodes is
lt, node, th power, sequence number, leaf nodes, parents, tree roots, terminal nodes, tree propertyDecember 28
Shift operator is based on the binary numbers to pan. Filled in accordance with the direction and number of translation rules are divided into three types: <<(left shift ),>>( signed right shift) and>> "(unsigned right shift). When
lt 2, overflow, rpm, remainder, displacement, complement, number 3, digits, th power, shift operation, end result, zeros, shift operator, shift operators, binary number, binary numbers, mobile number, negative numbers, operational rules, translation rulesDecember 28
JAVA shift operator Articles Category: Java Programming Study: Back Qinbo Shift operator is based on the binary numbers to pan. Filled in accordance with the direction and number of translation rules are divided into three types: <<(left shift ),>
0000, lt 2, overflow, remainder, java programming, number 3, word length, th power, shift operation, end result, zeros, shift operator, shift operators, binary number, binary numbers, mobile number, operational rules, translation rules, reference library, hardware modDecember 20
To determine the number set is an unsigned integer X. First, to determine whether X is 0, if n 0 is not a power of 2, to return. X and X-1 carried by bit with the operation, if the result is 0, then this number is 2 n-th power; if the result is not 0
amp, 1111, proof, th power, 11111111, unsigned integerDecember 16
A shift operator "<<" ">>" ">>>" In Java, is left, right signed and unsigned right shift operator. (1) left-moving operator (<<): The number of operations will move to the left, moving the number of
string args, gt 2, lt 2, quot quot, main string, byte, a3, operand, a1, a5, th power, mobile operator, shift operator, c3, a4, power testDecember 14
K said at a power of 2 multiplied by 2 in the K-th power of the board, and a special box, then this is called a special board, for example, has a 4 line 4 of the board, line 2 column 2 different from the other box (the other box is empty, it is the s
lt, amp, public void, public int, algorithm, int size, tc, heroes, th power, tile, cout, endl, domino, setw, c algorithms, j1December 10
Digit refers to the CPU GPRs (General-Purpose Registers, general-purpose register) How many bits of data width, the number of bits (in 32-bit example) 32-bit instruction set is to run 32-bit data instructions that the processor time You can run 32bit
bill gates, clock frequency, performance changes, th power, bit system, central processor, processor time, key development, computer properties, bit systems, system address, address bus, address bits, general purpose register, microsoftxp, intel 8080, memory clock, processor address, base memory, altair computerDecember 9
1. "-------------------- | Big address 0xffffffff | Kernel virtual memory | |--------------------| ← 0xc0000000 | User stack (created when running) | |--------------------| ← esp | ↓ ↑ library stack up down | |--------------------| | Shared library a
init, run time, y quot, virtual memory, malloc, stack, 8 bits, kernel, point operations, complement, computer systems, heap, th power, binary number, library area, fraction, brk, floating point standard, logical shift, arithmetic shiftNovember 29
1 Digital Function POWER ABS absolute value for the base to take power LN 10 0 SQRT square root of n-th power EXP e LOG (m, n) m for the base n to 0 Math functions: ACOS ATAN ATAN2 COS COSH SIGN SIN SINH TAN TANH CEIL take an integer greater than or
current system, c1, date function, ceil, decimal point, numeric character, value date, absolute value, system time, th power, return date, chr, character c, lpad, lowercase characters, square root, math functions, cosh, atan2, tanhNovember 18
Transfer: http://www.360doc.com/content/10/0712/09/1265417_38411103.shtml Unfortunately, you encountered a difficult problem encountered. Unfortunately, you must be edgy. People can encounter this error is not an ordinary person. So you must not a mo
oracle, oracle 9i, database instance, maximum number, operating system, algorithm, restriction, red hat enterprise, enterprise linux, default template, shtml, oracle 11g, single file, th power, table space, space size, default size, maximum size, bit systems, ordinary personNovember 15
/ / (Recursively) # Include "stdafx.h" # Include <stdio.h> # Include <stdlib.h> / / # Include <math.h> typedef struct node * BiTree; struct node { char ch; BiTree Lchild, Rchild; }; BiTree root = NULL; / / Create a binary tree
lt, stdlib, printf, pow, typedef struct, stdio, recursive algorithm, dl, th power, ch ch, tree traversal, recursively, power int, int depth, malloc sizeof, btr, bitree, full binary tree, post order traversal, btlNovember 11
All the mathematical functions in a case of error returns NULL. - Unary minus. Change the sign. mysql> select - 2; Note that if this operator is used with a BIGINT, the return value is a BIGINT! This means you should avoid the use of an integer - tha
gt 2, gt 4, remainder, mathematical functions, decimal point, absolute value, integer value, th power, gt 32, return parameters, bigint, unary, natural logarithmsNovember 11
Selection sort, quick sort, Hill sort, heap sort is not a stable sorting algorithm Bubble sort, insertion sort, merge sort and radix sort is stable sorting algorithm. Bubble method: This is the most original, and also well-known algorithm for the slo
bubble sort, insertion sort, reorganization, n times, array size, sorting algorithm, maximum value, quick sort, th power, recursion, time complexity, sorting algorithms, selection sort, select sort, heap sort, odds, log2, exchange actNovember 7
Personnel for the operation of the database SQL programming is undoubtedly a more efficient method, but some had just started a database management program specifications for the blind, they think they achieve their desired results like, but they ign
data storage, database sql, table structure, smallint, desired results, null values, predicates, good habit, type selection, th power, sql code, storage format, optimization problems, language keywords, character data types, ntext, statement terminator, database management program, case capital, style dataNovember 4
Complexity of the algorithm is divided into time complexity and space complexity. The role: time complexity is a measure of the duration of algorithm execution; and space complexity algorithm is a measure of the size of storage space required. Time c
lt, efficiency, opera, execution time, duration, time consuming, storage space, th power, time frequency, algorithms, order of magnitude, time complexity, space complexity, time algorithmOctober 26
Learn how to use bit operations to solve problems, common solutions are given below: Detection of an unsigned number is not 2 ^ n-1 (^ is power): x & (x +1) The far right of the 0 to 1: x | (x +1) Complement operation formula: -X = ~ x + 1 = ~ (x-1)
lt, third party, power 1, complement, absolute value, cmp, th power, int max, yx, t amp, common solutions, y sign, xy gt, dozOctober 4
Summarized under the name of the function function function Oracle single instance of the results ascii Get character ASCII code Ascii ('A') 65 chr Returns the corresponding ASCII character code Chr (65) A lower Convert a string to lowercase lower ('
character string, oracle database, remainder, substring, string length, decimal place, absolute value, occurrences, decimal value, th power, character ascii code, ascii character code, character functions, code ascii, praying for childrenSeptember 27
First, the bit and 1. Introduction: Here I introduce a very popular and have a better idea Professor of access control. Here I use the java language to describe, in fact, are similar. Your turn click on it. For convenience, we here define a ^ b as: a
java language, privileges, convenience, algorithm, access control, competence, integer value, th power, principle locationSeptember 26
/ * * Find the following function return value (Microsoft) - The number of statistics 1 * Int a = 65536 + 1024 + 8 + 1; int c = getc (a); System.out.println (c); * Will be converted into 2 x hex, to see with the number 1. Note: Each time x = x & (x-1
statistics, c language, expression, microsoft, static int, precedence, number 1, th power, position xSeptember 24
Title: Any Given a positive integer N, seek a minimum positive integer M (M> 1), so N * M in the decimal representation contains only 1 and 0. To solve this problem first consideration for any N, if such M must exist. Can be shown, M is certainly the
remainder, positive integer, module 3, search tree, infinite series, cycle 1, th power, search space, decimal representation, n series, sequence search, negative mode, m 111September 23
nothing more than java shift operators on these three: <<(left shift ),>>( with symbols shifted to the right) and>> "(unsigned right shift). 1, left <br /> left shift operator operator <<to specify the value of all bits
lt 2, type int, maximum number, num num, final result, th power, operator operator, shift operator, shift operators, binary numbers, vacancies, median value, mathematical significanceSeptember 18
Recent review of data structure, weak weak writing writing practice, this is to calculate the arbitrary power of any integer algorithm / * * Author: Kevin Alps * Date: 2010-09-12 * Function: Calculation of the arbitrary power of any integer * / # Inc
quot quot, algorithm, data structure, th power, integer power, arbitrary powerSeptember 12
Sequence (SEQUENCE) is a serial number generator, table rows can be automatically generated sequence number, resulting in a set interval value (type numbers). Its main purpose is to generate the primary key table can be referenced in the insert state
nocache, oracle database, table rows, initial value, current value, cache buffer, memory storage, maximum value, sequence generator, default option, th power, interval value, sequence number, database sequence, value options, memory buffer, value error, type numbers, serial number generator, minimum optionsAugust 30
This is a bitmap file structure, specifically to see the BMP image format . There bitmap file header, image header, optional color table, the data area composed of four parts. data size: header = 14 bytes info header = 40 bytes option palette = 2 * 4
demo, element, malloc, annex, planes, bmp image, th power, image format, index color, rgb values, pixel value, header image, optional color, rgb value, bitmap file structure, option palette, field steps, image header, bbpAugust 27
Google's engineers to facilitate the use of internal staff MapReduce, Sawzall developed called the DSL, while Hadoop also introduced a similar Sawzall's Pig language, but in the syntax above is quite different. Today, we posted about Sawall gave a pa
google, power 1, traditional database, web document, new programming language, internal staff, th power, multiple computers, typical scenario, flat structure, parallel mechanism, massive data analysis, programming language features, rob pike, stage filtration, network logs, query requests, database techniques, computing machines, petabytesAugust 24
ORACLE common function Demo Documents written: Meng New EDITORIAL: ORACLE built-in function, the equivalent of C language library functions, a general database programming required in the most basic functions, and through a combination or nested func
implementation code, c language, language library, ceil, database programming, absolute value, oracle database system, environment settings, th power, standing on the shoulders, square root, hyperbolic sine, natural logarithm, bottom number, acos, tangent arc, logarithm base, functional demonstration, trigonometric functions, th rootAugust 18
Wrote, function authcode ($ string, $ operation = 'DECODE', $ key ='', $ expiry = 0) ( $ Ckey_length = 4; / / random key length value 0-32; / / Add random key, the ciphertext can make no law, even if exactly the same text and key, encrypt the result
lt, amp, string string, array, string length, string operation, string result, base64, encryption, ciphertext, th power, j box, ckey, keya, keyb, microtime, random keysAugust 18
The following are official online ibm data, the data is db2v8 Page Size (Page size) Definitions used by table space page size. Supported by the size of 4K, 8K, 16K and 32K. Page size limit under the table space that can be placed in the table table l
address space, few days, definitions, th power, maximum capacity, table space, byte 2August 16
copy from [http://database.51cto.com/art/201004/196359.htm] Explained at the beginning to use Oracle sequence before plus a little on the Oracle client sqlplus use, that is, if the implementation of multi-line statement, then we must add "/" to
increment, oracle, primary key, syntax, initial value, step 2, oracle client, sequence name, sequences, cache buffer, memory storage, maximum value, sequence generator, default option, th power, sqlplus, value options, value error, sequence oracle, minimum optionsAugust 13
Decimal binary transfer: Divided by 2 was removed from the results of a The remainder and the last one written from the bottom up is the result of such reverse 302 302 / 2 = 151 I 0 151 / 2 = 75 I 1 75 / 2 = 37 I 1 37 / 2 = 18 I 1 18 / 2 = 9 I 0 9 /
Reprinted from: http://www.cnblogs.com/xiaosonl/archive/2009/06/17/1505312.html There are commonly used bitwise and (&), or (|) and non-(~), for example: 1 & 0 = 0, 1 | 0 = 1, ~ 1 = 0 Competence in the design, we can convert the bit computing oper
amp, privileges, subtraction, bitwise, competence, management operation, digital rights management, public enum, th power, bit computing, 8 flagsAugust 13
Oracle common feature highlights value function: To obtain the client IP address trim (NVL (sys_context ('userenv', 'ip_address'), '255 .255.255.255')) abs (m) m the absolute value mod (m, n) m is the remainder after n addition to power (m, n) m of t
oracle, abc, substr, remainder, substring, occurrence, decimal place, n times, instr, absolute value, decimal value, th power, caps, trunc, lpad, character functions, thomas thomasAugust 13
Oracle numeric functions common feature highlights: To obtain the client IP address trim (NVL (sys_context ('userenv', 'ip_address'), '255 .255.255.255')) abs (m) m the absolute value mod (m, n) m is the remainder after n addition to power (m, n) m o
oracle, abc, substr, remainder, substring, occurrence, decimal place, n times, instr, absolute value, decimal value, th power, numeric, caps, trunc, lpad, character functions, thomas thomasAugust 11
Transfer from: http://bbs.xml.org.cn/dispbbs.asp?boardID=77&ID=59088 6.3 Float library Name: Float Description: This library contains a typical floating-point arithmetic with the usual procedures. int Program: int (value) Description: returns the int
lt, amp, integer values, library name, ceil, pow, int value, integer value, th power, floating point arithmetic, value description, xml org, value parameters, floa, float libraryJuly 30
Requirements: Same page shows the contents of the need to go to two different databases a, b in the query, a result of a condition and then to b in the query. If the result of a number of large, need to b in the query graded. JDK: 1.6 Persistence Fra
lt, null return, amp, map, persistence, databases, arraylist, array, queries, improvements, memory footprint, th power, attention to detailsJuly 21
Computer Programming Fundamentals 1, Java is a high-level language, with cross-platform (running around a compilation) 1. Javac.exe command, the compiler javac source file name. Java 2. Java.exe command, start the virtual machine java class name Seco
java class, source file, cross platform, classpath, environment variable, path environment, java 2, high level language, virtual machine java, javac, octal, th power, virtual machine operating system, java exe, ascii code table, programming summary, computer programming fundamentals, basic computer programming, population inversion, binary switchJuly 18
Here the author describes a very common and have a better idea of professional access control. Using java language to describe here, actually the same. The language to be replaced by other owners, their transfer click on it. For convenience, we here
amp, java language, math, opera, convenience, algorithm, access control, using java, competence, pow, integer value, th power, principle location, purviewJuly 16
mysql commonly used functions Articles Category: Database 1, Math Functions ABS (x) returns the absolute value of x BIN (x) return x binary (OCT returned octal, HEX back to hex) CEILING (x) returns the smallest integer value greater than x EXP (x) re
string str, connection string, concat, string function, column number, th power, random value, random number generator, x1 x2, aggregate functions, ascii character code, math functions, natural logarithm, column count, value of pi, pi pi, natural logarithms, y sign, values group, character spacingJuly 11
drools interaction guieasyui too much recursionejb serializehttps: tsk1.erya100.comjquery load contentTypeh ttp: fgl001.7958 .com folder-736 3258npoi set column widthwah0101 http: dms.weimeizi.com:8888cb 1204gchttp:dwon.sucaiz.cn