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Oracle character encoding and the processing of Chinese character storage length

Label:Execute the following statement to see the bytes that the Chinese character occupies in the database:Select Vsize (' Han ') from dual; In general, the resulting results are mostly values: 2 or 3The Oracle database is installed under General Linux, the default character encoding is set to: Al32utf8, each kanji account is 3 bytesUnder Windows platform, the default c

An example of the character location (instr) retrieved by the oracle character truncation (substr) is as follows: substrinstr

An example of the character location (instr) retrieved by the oracle character truncation (substr) is as follows: substrinstr I. Theory Oracle truncation character (substr), search character location (instr) case when then else end statement use favoritesCommon functions: substr and instr1. SUBSTR (string, start_positi

Modify MySQL Default character set encoding and mysql character set encoding

Modify MySQL Default character set encoding and mysql character set encoding It's better to remember it than to write it down. A lot of things were not written down at the time, so I forgot it. The next time I use it, I have to waste a lot of time to solve it. Today, I encountered the problem of modifying the default character set encoding of MySQL. After a long

Java Chinese character to PinYin pinyin4j, java Chinese Character pinyin4j

Java Chinese character to PinYin pinyin4j, java Chinese Character pinyin4j Package com. joyce. pinyin4j; import net. sourceforge. pinyin4j. pinyinHelper; import net. sourceforge. pinyin4j. format. hanyuPinyinCaseType; import net. sourceforge. pinyin4j. format. hanyuPinyinOutputFormat; import net. sourceforge. pinyin4j. format. hanyuPinyinToneType; import net. sourceforge. pinyin4j. format. hanyuPinyinVCharT

PHP character string end character to enable case-insensitive swaps, string case _ PHP Tutorial

The end character of the PHP string word is case-insensitive. The last character of a PHP string is used to enable case-sensitivity swaps. This document describes how to enable case-sensitivity swaps for the last character of a PHP string. I would like to share with you how to enable case-insensitive swap for the last charact

Remove a character from a character array

/* Implement the function of the program: remove characters stored in C from the character array S. */#include intMainintargcConst Char*argv[]) { Chars[ the],c; printf ("Please enter a string \ n"); Gets (s); printf ("Please enter a character \ n"); scanf ("%c",c); //Traversing Strings for(inti =0; S[i]! =' /'; i++) { if(S[i] = =c) {//if the corresponding

[Unicode] character encoding table information, unicode character encoding

[Unicode] character encoding table information, unicode character encoding The UTF-8 is somewhat similar to the Haffman encoding, which encodes Unicode: 0x00-0x7F characters, expressed in a single byte; The character 0x80-0x7FF is expressed in two bytes; 0x800-0xFFFF characters are represented in 3 bytes; ① The unicode range of a number is 0x0030 ~ Zero x 0039 ②

31: The longest consecutive character in a string, and the longest character in a 31 string

31: The longest consecutive character in a string, and the longest character in a 31 string31: The longest consecutive character in a string View Submit Statistics Question Total time limit: 1000 ms Memory limit: 65536kB Description Returns the longest consecutive character

Python string character-by-character or word-by-word Inversion Method

This article mainly introduces the character-by-character or word-by-word inversion methods of Python strings. This article provides two methods for character-by-character or word-by-word conversion. For more information, see Purpose It is interesting to reverse a string by charac

Php Character Set conversion, php Character Set

Php Character Set conversion, php Character Set PHP uses iconv to convert a string from gbk to the UTF8 character set. 1. iconv () Introduction The iconv function can convert a known character set file to another known character set file. Example: Convert from GB2312 to U

Java random generation string (character randomly generated class generates random character combination) _java

Copy Code code as follows: Package Com.phyl.password; Import java.util.ArrayList;Import Java.util.Arrays;Import Java.util.Random;/*** Character Random Generation class* @author ASUS**/public class PassWord {/*** Password Type Enumeration* @author ASUS*/public static enum TYPE {/*** Character type*/Letter,/*** Uppercase Character type*/Capital,/*** Digita

The database character set (AL32UTF8) and the client character set (2%) are different

Tags: sdn KB SQL Key blog encounters 11g database Al32utf8When we log in to the Oracle database, we encounter the message: "The database Character set (AL32UTF8) and the client character set (2%) are different."This is due to inconsistent character set between the database server and client, the server character set an

Oracle A Chinese character occupies several bytes, determined by the character set encoding in Oracle

Oracle A Chinese character occupies several bytes, depending on the character set encoding in OracleView the Oracle server-side character setSelect Userenv (' language ') from dual;If shown below, a Chinese character occupies two bytesSimplified Chinese_china. Zhs16gbkIf shown below, a Chinese

"C language" the first occurrence of a character title: Find the first occurrence of a character in a string

The first occurrence of a character title: Find the first occurrence of a character in a string. If you enter "Abaccdeff", Output ' B '. #include Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced."C language" the first occurrence of a character title: Find the first occurrence of a

Character array definition problem, character array Definition

Character array definition problem, character array Definition The problem code is as follows: # Include # Include # Include Void parse (char * buf, char * args []){Printf ("buf = % s \ n", buf );Int I = 0;While (* buf! = '\ 0 '){Args [I] = buf;While (* buf! = '') (* Buf! = '\ T') (* buf! = '\ N') buf ++;While (* buf = '') | (* buf = '\ t') | (* buf =' \ n ')){* Buf = '\ 0'; // pay attention to this rowB

Winform Learning Log (27th) ---------- unicode encoding, character conversion, and obtained Chinese character location code

I. unicode encoding and character conversion Ii. unicode encoding and character conversion code Using System; using System. collections. generic; using System. componentModel; using System. data; using System. drawing; using System. linq; using System. text; using System. windows. forms; namespace ASCII {public partial class Frm_Main: Form {public Frm_Main () {InitializeComponent ();} private void btn_ToASC

Character Set (CHARACTER set) and proofing Set (COLLATE)

Http://blog.sina.com.cn/s/blog_9707fac301016wxm.htmlHttp://www.th7.cn/db/mysql/201412/84636.shtmlFrom the above, we can see that character_set_connection, Character_set_client, character_set_results three character sets when used. As you can actually see, when a client connects to a server, it sends its desired character set name to the MySQL server, which is then used by the server to set Character_set_con

PHP to the URL of the Chinese character encryption, but with the increase in the number of words, the encryption string has been increasing, want to let the length of the encryption character fixed, what good method?

PHP to the URL of the Chinese character encryption, but with the increase in the number of words, the encryption string has been increasing, want to let the length of the encryption character fixed, what good method? Reply content: PHP to the URL of the Chinese character encryption, but with the increase in the number of words, the encryption string has been

Isascii (test whether the character is an ASCII character)

/* Isascii (whether the test character is an ASCII character) function iscntrl header file # include Isascii (test whether the character is an ASCII character)

Converts a Chinese character string to a hexadecimal byte array. A Chinese character is saved in two bytes, and a large integer is saved in two bytes.

Package com. zdz8207.test; /*** Convert a Chinese character string to a hex byte array. One Chinese character is saved in two bytes, and a large integer is saved in two bytes.* @ Author zhengdunzhuang**/Public class chinesecharacterstringtobytearray { Public static void main (string [] ARGs ){Byte [] DATA = new byte [42];Data [0] = (byte) 0x04;Data [1] = (byte) (42 );Printhexstring (data );System. Out. pri

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