soundex function

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

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

// 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

-- 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

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

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."

  -- 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.

A string is usually used as an action object, such as finding a substring in a string, seeking a substring, inserting a substring at a point in a string, and deleting a substring. The necessary and sufficient condition for two strings to be equal is

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-

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-