Database terminology: in data management, the term “schema” refers to
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AA relationship service bureau
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BThe overall structural map (design) of a database
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CA parent with no owners
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DA generic two-dimensional table
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EA message routing plan
Answer
Correct Answer: The overall structural map (design) of a database
Explanation
Introduction / Context:Precise terminology is essential in databases. “Schema” (often misspelled as “scheme”) is the formal description of how data is structured and related in a database.
Given Data / Assumptions:
- We consider logical structures: tables, attributes, constraints, relationships, views.
- Schema is a blueprint, not data itself.
- Different levels exist (conceptual, logical, physical), but all are designs.
Concept / Approach:The schema defines entities, attributes, keys, and relationships, plus integrity rules. It is the map used by the DBMS to validate and manage data.
Step-by-Step Solution:1) Recognize common use: “CREATE SCHEMA / CREATE TABLE” statements define structures.2) Distinguish schema (design) from instances (data content).3) Select the option that captures the “overall structure” meaning.
Verification / Alternative check:Most DBMS documentation describes schema as the container/definition set for database objects.
Why Other Options Are Wrong:They do not refer to structural design (service bureau, parent, generic table, routing plan).
Common Pitfalls:Confusing schema with a specific table or with the data itself.
Final Answer:The overall structural map (design) of a database.