On 2018-01-24 13:48, Kurt at VR-FX wrote:

> Mike,

>

> If I was to look at this from a totally Logical stand point - I would

> think the Indexes are ONLY update if you update a field in a record

> where that field is contained in one or more of the Indices.

>

> However, Why not do a simple test - and generate your Own answer!??

>

> Take a chunk of the data from your table in question - or even take a

> copy of the Whole thing, along with the Indices, drop into another

> folder. Then - simply do some updates based upon your criteria below -

> and then you can confirm Exactly what happens!

>

> Right???

>

> :-)

>

> -K-

But if I did that, think of the discussion and thread that would be

missed here. LOL

This question relates to VFP CDX files but is something in theory too

for other systems (although I realize they may do things differently).

I just dropped a boatload of nonsense indexes from a client's legacy app

database and believe that it (theoretically) should improve network

traffic by lessening these unneeded updates.

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