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Deleted records
Message
From
25/01/2003 17:24:08
Hilmar Zonneveld
Independent Consultant
Cochabamba, Bolivia
 
General information
Forum:
Visual FoxPro
Category:
Other
Title:
Miscellaneous
Thread ID:
00745433
Message ID:
00745464
Views:
23
>Do you know how SQL Server gets away with it (just wondering)? Is it because of SQL Server stores data in "pages" so that a delete of record 90 requires only a reshuffling of the data page associated with record 90? Or is it because SQL Server writes to disk in a different way than VFP (SQL Server bypasses aspects of the OS, doesn't it?)?

I don't work with SQL Server.

I read some Oracle documentation, and it seems that in this case, several records are in some sort of "blocks", and for efficiency, a certain percentage of the space always has to remain free. It seems that Oracle doesn't use fixed-length records.
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)
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