December 2001
Intermediate to advanced
800 pages
17h 55m
English
Content preview from Guru's Guide to SQL Server™ Stored Procedures, XML, and HTML, The
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Scalar Functions
Listing 10-1 presents an example of a simple scalar function:
Listing 10-1. A basic scalar function.
CREATE FUNCTION dbo.Proper(@Name sysname)
RETURNS sysname
AS
BEGIN
DECLARE @len int, @i int, @Outname sysname, @LastSpc bit
SET @len=DATALENGTH(@Name)
SET @i=1
SET @LastSpc=1
SET @Outname=''
WHILE @i<@len BEGIN
SET @Outname=@Outname+
CASE @Lastspc
WHEN 1 THEN UPPER(SUBSTRING(@Name,@i,1))
ELSE LOWER(SUBSTRING(@Name,@i,1))
END
SET @LastSpc=CASE SUBSTRING(@Name,@i,1) WHEN ' ' THEN 1 ELSE 0 END
SET @i=@i+1
END
RETURN(@Outname)
END
GO
SELECT dbo.Proper('thomas a. edison')
|
(Results)
--------------------------------------------------------------------------- Thomas A. Edison
The function in Listing 10-1 converts a string into “proper” ...
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