uber1024's WebLog

It's not hot wings and beer, but it's still okay

January 2005 - Posts

Having trouble with "View Source?"

I was having trouble viewing the HTML source on some of my pages today and I cleared out the browser cache and set the size of the cache to be 1MB and the problem went away.  I'm not exactly sure WHY it went away, but it did. 

Just something to keep in mind.  More research to follow.

adding heirarchal data to SQL Server queries as a comma separated list

A system that I work on uses views to get all of its data.  The middle tier is basically engineered to do everything through views, so I have to think of how to do everything using views.  Normally this isn't a problem, but I came across a situation where I had to have records that could be members of zero, one, or many categories and I needed to display that data.  I thought about it for a while, and this is what I came up with.

First I needed a function that, given an ID of a record, would generate a comma separated list of the categories that the record was a member of.  This was the tough part, but here it is:

 

CREATE FUNCTION CatCategories (@OrganizationID int) 

RETURNS varchar(5000) AS 
BEGIN
 DECLARE @CatList varchar(5000)
      SELECT @CatList = COALESCE(@CatList + ',','') +c.CName
      FROM Categories c join SubCategories_Xref x on x.CategoryID = c.ID
  join InformationR r on r.ID = x.InformationID
      WHERE r.ID = @OrganizationID
   

      RETURN @CatList

END

The next step was to call it in a view, which is actually extremely easy:

SELECT     ID, Organization, dbo.CatCategories(ID) AS SName

FROM         dbo.InformationR r

And that was it.  It took me a while to figure out how to do the function without a cursor

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