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Execute the following schedules as “serial” and “non-serial” schedule and display final values of data items for each. 1)DB Values: balx=60 2)DB Values: balx=50, baly=60, balz=100

Execute the following schedules as “serial” and “non-serial” schedule and display final values of data items for each. 1)DB Values: balx=60 2)DB Values: balx=50, baly=60, balz=100

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Execute the following schedules as “serial” and “non-serial” schedule and display final values of data items for each.
1)DB Values: balx=60

2)DB Values: balx=50, baly=60, balz=100

 

Emergency calls only O'0 *| 96 ]| 4 11:23 AM Telenor DDS Assign.nts6 13june t10 Write(b) commit commit t11 commit Question#2: Execute the following schedules as "serial" and "non-serial" schedule and display final values of data items for each. 1. DB Values: balx=60 Time T1 T2 begin-transaction read(balx) t1 begin-transaction read(balx) t2 t3 balx = balx + 100 t4 balx = balx -10 write(balx) t5 write(balx) commit t6 commit 2. DB Values: balx=50, baly=60, balz=100 Time T5 T6 t1 begin-transaction begin-transaction read(balx) balx = balx – 10 t2 sum=0 t3 read(balx) t4 sum = sum+ balx read(baly) write(balx) read(balz) balz = balz + 10 t5 t6 sum = sum+ baly t7 write(balz) commit t8 t9 read(balz) t10 sum = sum + balx t11 commit Page Break
Transcribed Image Text:Emergency calls only O'0 *| 96 ]| 4 11:23 AM Telenor DDS Assign.nts6 13june t10 Write(b) commit commit t11 commit Question#2: Execute the following schedules as "serial" and "non-serial" schedule and display final values of data items for each. 1. DB Values: balx=60 Time T1 T2 begin-transaction read(balx) t1 begin-transaction read(balx) t2 t3 balx = balx + 100 t4 balx = balx -10 write(balx) t5 write(balx) commit t6 commit 2. DB Values: balx=50, baly=60, balz=100 Time T5 T6 t1 begin-transaction begin-transaction read(balx) balx = balx – 10 t2 sum=0 t3 read(balx) t4 sum = sum+ balx read(baly) write(balx) read(balz) balz = balz + 10 t5 t6 sum = sum+ baly t7 write(balz) commit t8 t9 read(balz) t10 sum = sum + balx t11 commit Page Break
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