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Message Posted: Thu, 27 Jul 2006 @ 16:13:27 GMT

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Subj:   Re: Teradata Oracle UDF's
From:   Fred W Pluebell

There are two implementations because REPLACE comes in two forms:

     REPLACE(char, search_string , replacement_string)
     REPLACE(char, search_string )
      /* equivalent to specifying an empty string as replacement */

Using "overloading", both modules are declared to be specific implementations of the same logical function; based on the number and types of arguments supplied, the database will decide which to invoke.

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