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Consider the following transaction code:
BEGIN TRANSACTION;
UPDATE customers SET balance = balance - 100 WHERE id = 1;
UPDATE customers SET balance = balance + 100 WHERE id = 2;
COMMIT;
If the initial balance of customer 1 is $500 and customer 2 is $300, what will be the final balance of customer 1 and customer 2 after the transaction is committed?
  • a)
    Customer 1: $400, Customer 2: $400
  • b)
    Customer 1: $400, Customer 2: $300
  • c)
    Customer 1: $500, Customer 2: $400
  • d)
    Customer 1: $500, Customer 2: $300
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Consider the following transaction code:BEGIN TRANSACTION;UPDATE custo...
The first UPDATE statement reduces the balance of customer 1 by $100, resulting in a balance of $400. The second UPDATE statement tries to increase the balance of customer 2 by $100, but since the initial balance is $300, the update will not take place. Hence, the final balances are $400 and $300, respectively.
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Most Upvoted Answer
Consider the following transaction code:BEGIN TRANSACTION;UPDATE custo...


Explanation:

Customer 1 starts with a balance of $500, and customer 2 starts with a balance of $300. The transaction code provided updates the balances of the customers by subtracting $100 from customer 1 and adding $100 to customer 2.

Calculations:
- Customer 1's balance after the update: $500 - $100 = $400
- Customer 2's balance after the update: $300 + $100 = $400

Therefore, the final balances after the transaction is committed will be:
Customer 1: $400
Customer 2: $400

Therefore, the correct answer is option B - Customer 1: $400, Customer 2: $400.
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Consider the following transaction code:BEGIN TRANSACTION;UPDATE customers SET balance = balance - 100 WHERE id = 1;UPDATE customers SET balance = balance + 100 WHERE id = 2;COMMIT;If the initial balance of customer 1 is $500 and customer 2 is $300, what will be the final balance of customer 1 and customer 2 after the transaction is committed?a)Customer 1: $400, Customer 2: $400b)Customer 1: $400, Customer 2: $300c)Customer 1: $500, Customer 2: $400d)Customer 1: $500, Customer 2: $300Correct answer is option 'B'. Can you explain this answer?
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Consider the following transaction code:BEGIN TRANSACTION;UPDATE customers SET balance = balance - 100 WHERE id = 1;UPDATE customers SET balance = balance + 100 WHERE id = 2;COMMIT;If the initial balance of customer 1 is $500 and customer 2 is $300, what will be the final balance of customer 1 and customer 2 after the transaction is committed?a)Customer 1: $400, Customer 2: $400b)Customer 1: $400, Customer 2: $300c)Customer 1: $500, Customer 2: $400d)Customer 1: $500, Customer 2: $300Correct answer is option 'B'. Can you explain this answer? for Software Development 2025 is part of Software Development preparation. The Question and answers have been prepared according to the Software Development exam syllabus. Information about Consider the following transaction code:BEGIN TRANSACTION;UPDATE customers SET balance = balance - 100 WHERE id = 1;UPDATE customers SET balance = balance + 100 WHERE id = 2;COMMIT;If the initial balance of customer 1 is $500 and customer 2 is $300, what will be the final balance of customer 1 and customer 2 after the transaction is committed?a)Customer 1: $400, Customer 2: $400b)Customer 1: $400, Customer 2: $300c)Customer 1: $500, Customer 2: $400d)Customer 1: $500, Customer 2: $300Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Software Development 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following transaction code:BEGIN TRANSACTION;UPDATE customers SET balance = balance - 100 WHERE id = 1;UPDATE customers SET balance = balance + 100 WHERE id = 2;COMMIT;If the initial balance of customer 1 is $500 and customer 2 is $300, what will be the final balance of customer 1 and customer 2 after the transaction is committed?a)Customer 1: $400, Customer 2: $400b)Customer 1: $400, Customer 2: $300c)Customer 1: $500, Customer 2: $400d)Customer 1: $500, Customer 2: $300Correct answer is option 'B'. Can you explain this answer?.
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