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| Slide 1:
Alex Kodat
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| Slide 2:
What are Reuse Record Number Files
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| Slide 3:
Some Facts About Records
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| Slide 4:
Starting a New Record on a Page
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| Slide 5:
Model 204 Table B Structure
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| Slide 6:
Adding New Records to File
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| Slide 7:
The Reuse Queue
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| Slide 8:
When Does Page Get Added to Reuse Queue?
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| Slide 9:
The Reuse Queue
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| Slide 10:
Some Words About "Constraints"
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| Slide 11:
Adding New Records to File
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| Slide 12:
Trying to Reuse a Record Number
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| Slide 13:
Where to Put Non-Reusable Table B Page at Head of Reuse Queue
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| Slide 14:
Desperate Measures When Unordered File Appears Full
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| Slide 15:
When Does It Make Sense to Use an Unordered File?
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| Slide 16:
What are the Advantages of Unordered RRN Files?
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| Slide 17:
What are the Disadvantages of Unordered RRN Files?
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| Slide 18:
Your Weapons in Tuning Unordered RRN Files
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| Slide 19:
Ciphering BRESERVE
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| Slide 20:
Ciphering BRESERVE
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| Slide 21:
Things to Monitor in Unordered RRN Files
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| Slide 22:
Setting BSIZE in Unordered RRN Files
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| Slide 23:
Model 1 - Strict FIFO files
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| Slide 24:
Model 1 - Strict FIFO Files
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| Slide 25:
Benefits of Keeping FIFO Files "Neat"
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| Slide 26:
Model 2 - Largely FIFO Files
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| Slide 27:
Model 3 - Random Additions and Deletions
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| Slide 28:
How big to make BREUSE
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| Slide 29:
How big to make BREUSE
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| Slide 30:
How About BRECPPG?
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| Slide 31:
And BRESERVE
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| Slide 32:
Conclusions
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| Slide 33:
The End
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