Database concepts — evaluate the claim below and choose the best assessment.\n\n"Database objects are almost always transient (short-lived) rather than persistent."

Difficulty: Easy

Correct Answer: Invalid (database objects are typically persistent)

Explanation:


Introduction / Context:
This question checks your understanding of the lifecycle of database objects such as tables, views, indexes, schemas, stored procedures, and sequences. In professional database systems, these objects usually persist beyond a single session and are designed to exist until explicitly altered or dropped. The statement claims the opposite by saying database objects are “almost always transient.”


Given Data / Assumptions:

  • Database objects include structures stored in the system catalog (for example, tables, indexes, views, triggers).
  • Transient means short-lived or temporary by default.
  • Production databases aim for durability and repeatable access to defined structures.


Concept / Approach:
Durability and persistence are core to database systems. Data definition language (DDL) creates persistent objects that remain available across sessions and server restarts. Temporary or transient objects (for example, temp tables, table variables, scratch objects in procedural code) exist, but they are the minority and are created for specific, short-term tasks such as staging or intermediate calculations.


Step-by-Step Solution:

Identify what “database objects” typically refer to: cataloged, named entities like tables and indexes.Recall that CREATE TABLE/VIEW/INDEX defines objects that persist until an explicit DROP or ALTER.Note that temporary objects exist but are exceptions used for special workflows.Conclude that the statement “almost always transient” is incorrect.


Verification / Alternative check:
Inspect any production database’s system catalog. You will see objects created months or years earlier that continue to exist and serve applications daily. Backups and migrations depend on their persistence.


Why Other Options Are Wrong:

  • Valid: contradicts how databases are used in practice.
  • Applies only to temporary tables / in-memory databases / during transactions: these describe niche cases, not the general rule.


Common Pitfalls:
Confusing transient data (for example, session variables) with schema objects; assuming cache entries or execution plans are the same as catalog objects; overlooking that even in-memory engines persist metadata and can persist data via logs/checkpoints.


Final Answer:
Invalid (database objects are typically persistent)

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