Part 2: Write Ahead Log For each question use below table as the last snapshot f
ID: 3890202 • Letter: P
Question
Part 2: Write Ahead Log For each question use below table as the last snapshot for the database. Each question gives a partial database log from the snapshot to the point of failure. For each problem: Identify all transactions and whether they committed before the point of failure Give the state of the database after recovery finishes Key Amount FirstName 10 Alice Brian Carol 13 1,125 Daryl 100 125 275 Smith Tanner Ustabaz Vickers 5 TID Type 106 CHECKPOINT 107 START 107 UPDATE 107 UPDATE 108 START 108 UPDATE 107 COMMIT 108 COMMIT Record After 10.amount 125 11.amount 100 12.amount 300Explanation / Answer
KEY
AMOUNT
FIRSTNAME
LASTNAME
10
100
ALICE
SMITH
11
125
BRIAN
TANEER
12
275
CAROL
USTABAZ
13
1125
DARYL
VICKERS
ANSWER FOR PROBLEM 5
GIVEN TABLE
AFTER TID 107 THE TABLE LOOKS AS
KEY
AMOUNT
FIRSTNAME
LASTNAME
10
125
ALICE
SMITH
11
100
BRIAN
TANEER
12
275
CAROL
USTABAZ
13
1125
DARYL
VICKERS
AFTER TID 108 THE TABLE LOOKS AS
KEY
AMOUNT
FIRSTNAME
LASTNAME
10
100
ALICE
SMITH
11
125
BRIAN
TANEER
12
300
CAROL
USTABAZ
13
1125
DARYL
VICKERS
ANSWER FOR PROBLEM 6
GIVEN TABLE
KEY
AMOUNT
FIRSTNAME
LASTNAME
10
100
ALICE
SMITH
11
125
BRIAN
TANEER
12
275
CAROL
USTABAZ
13
1125
DARYL
VICKERS
AFTER TID 107 THE TABLE LOOKS AS
KEY
AMOUNT
FIRSTNAME
LASTNAME
10
125
ALICE
SMITH
11
100
BRIAN
TANEER
12
275
CAROL
USTABAZ
13
1125
DARYL
VICKERS
AFTER TID 108 THE TABLE LOOKS AS
KEY
AMOUNT
FIRSTNAME
LASTNAME
10
115
ALICE
SMITH
11
125
BRIAN
TANEER
12
275
CAROL
USTABAZ
13
1125
DARYL
VICKERS
AFTER TID 109 THE TABLE LOOKS AS
KEY
AMOUNT
FIRSTNAME
LASTNAME
11
125
BRIAN
TANEER
12
300
CAROL
USTABAZ
13
1125
DARYL
VICKERS
AFTER TID 110 THE TABLE LOOKS AS
KEY
AMOUNT
FIRSTNAME
LASTNAME
10
100
ALICE
ROBERTS
11
125
BRIAN
TANEER
12
275
CAROL
USTABAZ
13
1125
DARYL
VICKERS
ANSWER FOR PROBLEM 7
GIVEN TABLE
KEY
AMOUNT
FIRSTNAME
LASTNAME
10
100
ALICE
SMITH
11
125
BRIAN
TANEER
12
275
CAROL
USTABAZ
13
1125
DARYL
VICKERS
AFTER TID 107 THE TABLE LOOKS AS
KEY
AMOUNT
FIRSTNAME
LASTNAME
10
100
ALICE
SMITH
11
125
BRIAN
TANEER
12
275
CAROL
USTABAZ
13
1125
DARYL
VICKERS
AFTER TID 108 THE TABLE LOOKS AS
KEY
AMOUNT
FIRSTNAME
LASTNAME
10
100
ALICE
SMITH
11
135
BRIAN
TANEER
12
275
CAROL
USTABAZ
13
1125
DARYL
VICKERS
AFTER TID 109 THE TABLE LOOKS AS
KEY
AMOUNT
FIRSTNAME
LASTNAME
10
100
ALICE
SMITH
11
115
BRIAN
TANEER
12
275
CAROL
USTABAZ
13
1125
DARYL
VICKERS
AFTER TID 110 THE TABLE LOOKS AS
KEY
AMOUNT
FIRSTNAME
LASTNAME
10
100
ALICE
SMITH
11
155
BRIAN
TANEER
12
275
CAROL
USTABAZ
13
1125
DARYL
VICKERS
KEY
AMOUNT
FIRSTNAME
LASTNAME
10
100
ALICE
SMITH
11
125
BRIAN
TANEER
12
275
CAROL
USTABAZ
13
1125
DARYL
VICKERS
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