Database Systems: Design, Implementation, & Management
13th Edition
ISBN: 9781337627900
Author: Carlos Coronel, Steven Morris
Publisher: Cengage Learning
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Chapter 10, Problem 3RQ
Explanation of Solution
Explanation of given scenario:
- The DBMS (
Database management systems) is an application used to implement database commands given by the user. - The DBMS application checks the commands are syntactically correct or not and then execute the query in logical manner.
- Hence, the DBMS command not gives the guarantee that the semantic meaning of transaction truly represents the real-world event.
Possible consequences of limitation:
- DBMS cannot guarantee for transaction represents in real-world event...
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Is a stable database state possible, and if so, how can it be achieved? There is no guarantee that the transaction's symbolic meaning accurately captures the underlying real-world event, and this is where the DBMS fails. Exactly what are the ramifications of such a ban? Give an illustration of what you mean. Does the term "serializable transactions" really mean what it appears to?
What does a stable database state entail, and how is it accomplished? The DBMS makes no promise that the transaction's symbolic sense accurately reflects the underlying real-world event. What are the potential ramifications of that restriction? Give an illustration. What does the term "serializable transactions" mean?
What does it mean to have a stable database state, and how does one achieve it? The DBMS gives no guarantee that the
symbolic meaning of the transaction appropriately represents the underlying real-world event. What are the
consequences of such a restriction? Describe an example. What exactly is meant by "serializable transactions"?
Chapter 10 Solutions
Database Systems: Design, Implementation, & Management
Ch. 10 - Prob. 1RQCh. 10 - Prob. 2RQCh. 10 - Prob. 3RQCh. 10 - Prob. 4RQCh. 10 - Prob. 5RQCh. 10 - Prob. 6RQCh. 10 - Prob. 7RQCh. 10 - Prob. 8RQCh. 10 - Prob. 9RQCh. 10 - Prob. 10RQ
Ch. 10 - Prob. 11RQCh. 10 - Prob. 12RQCh. 10 - Prob. 13RQCh. 10 - Prob. 14RQCh. 10 - Prob. 15RQCh. 10 - Prob. 16RQCh. 10 - Prob. 17RQCh. 10 - Prob. 1PCh. 10 - Prob. 2PCh. 10 - Prob. 3PCh. 10 - Prob. 4PCh. 10 - Prob. 5PCh. 10 - Prob. 6PCh. 10 - Prob. 7PCh. 10 - Prob. 8PCh. 10 - Prob. 9PCh. 10 - Prob. 10PCh. 10 - Prob. 11P
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- What's stable database state? There's no guarantee that the transaction's symbolic meaning matches the database management system's real-world occurrence. What would a ban do? Give an example. What does "serializable transactions" mean?arrow_forwardWhat is a consistent database state, and how is it achieved? Â Â The DBMS does not guarantee that the semantic meaning of the transaction truly represents the real-world event. What are the possible consequences of that limitation? Give an example. Â Â What does serializability of transactions mean?arrow_forwardWhat does it mean for a database to be in a stable state? While the database management system may give a symbolic meaning for a transaction, there is no assurance that it faithfully captures the underlying real-world event. What consequences may be expected if this ban were implemented? Explain your point using an illustration. Should we take at face value the apparent meaning of the phrase "serializable transactions"?arrow_forward
- What is a stable database state, and how is it achieved?The DBMS gives no guarantee that the symbolic notion of the transaction appropriately matches the underlying real-world event.What are the possible consequences of the restriction? Please provide an example. What exactly is meant by "serializable transactions"?arrow_forwardWhat does a stable database state include, and how is it attained? The DBMS does not ensure that the transaction's symbolic meaning accurately reflects the underlying real-world event. What effects might such a limitation have? Give an instance. What does the term "serializable transactions" really mean?arrow_forwardWhat does it mean for a database to be in a stable state? The database management system does not ensure that the transaction's symbolic meaning appropriately reflects the underlying real-world event. What would be the repercussions of such a ban? Using a concrete illustration, clarify your meaning. Does the word "serializable transactions" imply what it seems to mean?arrow_forward
- Suppose your database's referential integrity isn't enforced. In what ways is it possible that a mistake will occur?arrow_forwardSuppose you're interested in recording the history of changes made to the takes relation. Have any assurances been made that unauthorized database administrators (or those who manage to crack an administrator's password) would be recorded in an audit trail of modifications made by this implementation? Your reply need to include many specifics.arrow_forwardStart with a database transaction. We'll look on the bright side when we meet again.arrow_forward
- Suppose you wish to create an audit trail of changes to the takes relation. Can the preceding implementation guarantee that updates made by a malicious database administrator (or someone who manages to get the administrator’s password) will be in the audit trail? Explain your answer.arrow_forwardWhat is a stable database state? The transaction's symbolic meaning may not match the database management system's real-world occurrence. What would a ban mean? Provide an example to clarify. Is "serializable transactions" what it seems?arrow_forwardSuppose your database's referential integrity were compromised; what would happen then? Which kind of mistakes do you notice most often?arrow_forward
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