Hi, Hilmar!
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Can you briefly explain what is a "dirty read"?
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"Dirty read" is the possibilitiy of all xBase databases to be able to read a record which is locked by another!
This works due to a technical trick:
- Locks are setted on a specific area of the DBF file.
- But not the real location of the locked record in the DBF file is locked, but a virtual region outside of EOF.
- If anybody other try to make the same virtual lock, it denied.
- But if anybody want's to read the locked record - it works!
BTW: This is the history, I'm not sure about behind the scenes of the current VFP versions. And I don't know how backend databases like SQL2000 work!
So far!
SeBaFlu