>Thanks to you both...
>Hilmar - I found your document enlightening!!! I will have to go back over some of my previous projects - I have had an "If in doubt - index it!!!" approach up until reading your document...
Right. I was also surprised when I first learned that some indices may
significantly slow down a query, instead of making it faster. But speed tests reveal that this is, indeed, so.
You will usually want to index fields that have few records for any one value. In some cases you have no choice (Referential Integrity, but this isn't usually a problem).
Hilmar.
Difference in opinions hath cost many millions of lives: for instance, whether flesh be bread, or bread be flesh; whether whistling be a vice or a virtue; whether it be better to kiss a post, or throw it into the fire... (from Gulliver's Travels)
