soundex

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Soundex and Defference functions use

FunctionReturns a number that represents the sound of a string.GrammarSOUNDEX ( string-expression )ParametersThe string-expression string.UsageThe value of the SOUNDEX function of a string is based on the first letter and the next three consonants

Zoj problem set-1858 soundex

Time Limit: 2 seconds memory limit: 65536 KB Soundex coding groups together words that appear to sound alike based on their spelling. For example, "can" and "khawn", "con" and "gone" wocould be equivalent under soundex coding. Soundex Coding

MySQL's Soundex () function

The SOUNDEX () function is an algorithm that converts any text string into a letter pattern that describes the speech representation.He considered similar to pronounced characters and bytes, and was able to compare the pronunciation of the text

Study on ansiresemblestext, a function used to determine whether two strings are similar

// First confuse var B: Boolean; begin B: = ansiresemblestext ('abc', 'apc '); showmessage (booltostr (B); {true} B: = ansiresemblestext ('abc', 'agc '); showmessage (booltostr (B); {false} B: = ansiresemblestext ('abc', 'aac '); showmessage

SQL statement data

-- Sentence skill -- Data Operations SELECT -- retrieve data rows and columns from database tables INSERT -- add new data rows to the database table DELETE -- DELETE data rows from a database table UPDATE -- UPDATE data in the database table -- Data

Full Set of SQL Server statements)

  -- Sentence skill 1. Data OperationsSelect -- retrieve data rows and columns from database tablesInsert -- add new data rows to the database tableDelete -- delete data rows from a database tableUpdate -- update data in the database table 2.

Oracle Common Functions Summary

PL/SQL single-line functions and group functionsA function is a program that has 0 or more parameters and has a return value. Oracle built a series of functions in SQL that can be called SQL or PLFunctions are divided into two main categories:Single-

Comparison of common functions for SQL Server to Oracle

Comparison of common functions for SQL Server to Oracle 1. Absolute ValueS: Select ABS (-1) ValueO: Select ABS (-1) value from dual 2. INTEGER (large)S: Select ceiling (-1.001) ValueO: Select Ceil (-1.001) value from dual 3. Round (small)S: Select

Mysql string comparison Function

String function string comparison function if the result length is greater than the maximum value of the max_allowed_packet system variable, the return value of the string value function is NULL. See section 7.5.2 "Adjust server Parameters ". String

MySQL string functions

Generally, the entire string is used as the operation object, for example: search for a substring in a substring, obtain a substring, insert a substring at a certain position in the substring, and delete a substring. Generally, the entire string is

MySQL string comparison function

String functionsstring comparison functionsIf the length of the result is greater than the maximum value of the Max_allowed_packet system variable, the return value of the string value function is null. See section 7.5.2, "Tuning server parameters."

SQL Server common functions

SQL Server common functions I want to record some common SQL functions before, but it has never been implemented... Hey hey... Until today, the substring () function is used. in C #, the start value of this method is 0, while in SQL, the start value

SQL Server Common functions applicable method (reprint)

Previously, I wanted to record some of the usual functions of SQL, but it has not been implemented ... Hey...Until today, the substring () function is used, and in C # The starting value of this method is 0, and the starting value in SQL is 1. Silly

MySQL string functions

Generally, the entire string is used as the operation object, for example: search for a substring in a substring, obtain a substring, insert a substring at a certain position in the substring, and delete a substring. The required and sufficient

MySQL string functions

String is a finite sequence composed of zero or multiple characters. It is generally recorded as s = 'a1a2 • an '(n> = 0 ). It is the data type that represents text in programming languages.Generally, the entire string is used as the operation

MySQL string functions

Generally, the entire string is used as the operation object, for example: search for a substring in a substring, obtain a substring, insert a substring at a certain position in the substring, and delete a substring. The required and sufficient

A detailed introduction to String functions in Mysql _mysql

A string or string (string) is a finite sequence consisting of 0 or more characters. Generally recorded as s= ' a1a2 an ' (n>=0). It is the data type that represents text in the programming language. A string is usually used as an action object,

Some common knowledge about databases-mysql tutorial

Some common knowledge of databases are important operation statements. Some common knowledge of databases are important operation statements. Drop view -- delete a VIEW from a database Create index -- CREATE an INDEX for the database table Drop

SQL Server connection Field Method

This article uses examples to parse SQL server connection fields ...... Today, icech of Western E wants to export some data of SQL Server. Originally, the year, month, and day are divided into three fields stored in staryear, starmonth, and starday,

Jakarta-common-codec usage notes

Commons codec provides base64, Hex, metaphone, soundex, and Other encoding computations. : Http://commons.apache.org/codec/ A. base64 encoding/DecodingPackage demo; Import org. Apache. commons. codec. Binary. base64; Public class base64test

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