soundex matching

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

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

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

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

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

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 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,

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-row functions and group functions A function has zero or multiple parameters and has a return value.Program. Oracle has a series of built-in functions in SQL, which can be called SQL or PL/SQL statements. functions are mainly

The ORACLE tutorial is: OraclePL/SQL single-row functions and group functions. A 1 function is a program with zero or multiple parameters and a return value. Oracle has a series of built-in functions in SQL, which can be called SQL or PL/SQL