Answers2ed-All Excercise Problems

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Transcript of Answers2ed-All Excercise Problems

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50000 3.3

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1.8

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19

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madayan@music

guldu@music

smith@math

smith@ee

jones@cs

dave@cs

Madayan

Guldu

Smith

Smith

Jones

Dave

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Strict 2PL

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Timestamp W/O TWR

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Multiversion

Optimistic

S4

S5 S6 S7 S8

S9 S10 S11 S12

S13 S14 S15 S16

S17 S18 S19 S20

S21 S22 S23 S24

S25 S26

S29 S30 S31 S32

S27 S28

S1 S2 S3

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begin_checkpoint

LOG LSN

update: T1 writes P5

update: T2 writes P3

update: T3 writes P3

CRASH, RESTART

T2 end

T2 commit

T1 abort70

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LSN LOG

00 begin_checkpoint

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