Friday, January 25, 2013

SQL - Convert SQL Column to Camel Case

Issue: Converting a sql column comprised of strings into camel casing format.

Solution: Create a camel casing function, run it against the column, and delete the function if you like afterwards.

 1)
CREATE FUNCTION [dbo].[CamelCase]
(@Str varchar(8000))
RETURNS varchar(8000) AS
BEGIN
  DECLARE @Result varchar(2000)
  SET @Str = LOWER(@Str) + ' '
  SET @Result = ''
  WHILE 1=1
  BEGIN
    IF PATINDEX('% %',@Str) = 0 BREAK
    SET @Result = @Result + UPPER(Left(@Str,1))+
    SubString  (@Str,2,CharIndex(' ',@Str)-1)
    SET @Str = SubString(@Str,
      CharIndex(' ',@Str)+1,Len(@Str))
  END
  SET @Result = Left(@Result,Len(@Result))
  RETURN @Result
END

2)
Update SomeTable Set SomeName = dbo.CamelCase(SomeName)