Thursday, August 28, 2008

SQL Server Utility Functions for Searching String in SQL Server 2005

Set of Utility Function for SQL Server 2005

AT(): Returns the beginning numeric position of the nth occurrence of a character expression within another character expression, counting from the leftmost character.
RAT(): Returns the numeric position of the last (rightmost) occurrence of a character string within another character string.
OCCURS(): Returns the number of times a character expression occurs within another character expression (including overlaps).
OCCURS2(): Returns the number of times a character expression occurs within another character expression (excluding overlaps).
PADL(): Returns a string from an expression, padded with spaces or characters to a specified length on the left side.
PADR(): Returns a string from an expression, padded with spaces or characters to a specified length on the right side.
PADC(): Returns a string from an expression, padded with spaces or characters to a specified length on the both sides.
CHRTRAN(): Replaces each character in a character expression that matches a character in a second character expression with the corresponding character in a third character expression.
STRTRAN(): Searches a character expression for occurrences of a second character expression, and then replaces each occurrence with a third character expression. Unlike a built-in function Replace, STRTRAN has three additional parameters.
STRFILTER(): Removes all characters from a string except those specified.
GETWORDCOUNT(): Counts the words in a string.
GETWORDNUM(): Returns a specified word from a string.
GETNUMWORD(): Returns the index position of a word in a string.
GETALLWORDS(): Inserts the words from a string into the table.
PROPER(): Returns from a character expression a string capitalized as appropriate for proper names.
RCHARINDEX(): Similar to the Transact-SQL function Charindex, with a Right search.
ARABTOROMAN(): Returns the character Roman numeral equivalent of a specified numeric expression (from 1 to 3999).
ROMANTOARAB(): Returns the number equivalent of a specified character Roman numeral expression (from I to MMMCMXCIX).

You can get code from this web link for each of this functions http://it.toolbox.com/wiki/index.php/User-Defined_string_Functions_MS_SQL_Server_2005_Transact-SQL_SQLCLR

1 comment:

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