Database Management Systems (DBMS)
In computer science, Query optimizer refers to which of the following?
Difficulty: Hard
About this MCQ
This Hard Database Management Systems (DBMS) MCQ checks one syllabus fact.
The question is: “In computer science, Query optimizer refers to which of the following?”
The accepted answer is D. A DBMS component that determines the most efficient way to execute a given database query.. In computer science Query optimizer refers to which of the following is answered by A DBMS component that determines the most efficient way to execute a given database query option D Option A A database property ensuring that relationships between tables remain consistent typically enforced through foreign keys does not match the stem it is a near-miss used to catch incomplete recall of A DBMS component that determines the most efficient way to execute a given database query Option B A precompiled collection of SQL statements stored in a database that can be executed as a single unit does not match the stem it is a near-miss used to catch incomplete recall of A DBMS component that determines the most.
- A. A database property ensuring that relationships between tables remain consistent, typically enforced through foreign keys.
Why not A: “A database property ensuring that relationships between tables remain consistent, typically enforced through foreign keys.” is not correct. The accepted answer is D. A DBMS component that determines the most efficient way to execute a given database query.. In computer science Query optimizer refers to which of the following is answered by A DBMS component that determines the most efficient way to execute a given database query option
- B. A precompiled collection of SQL statements stored in a database that can be executed as a single unit.
Why not B: “A precompiled collection of SQL statements stored in a database that can be executed as a single unit.” is not correct. The accepted answer is D. A DBMS component that determines the most efficient way to execute a given database query.. In computer science Query optimizer refers to which of the following is answered by A DBMS component that determines the most efficient way to execute a given database query option
- C. A large, centralized repository of integrated data from multiple sources used for reporting and analysis.
Why not C: “A large, centralized repository of integrated data from multiple sources used for reporting and analysis.” is not correct. The accepted answer is D. A DBMS component that determines the most efficient way to execute a given database query.. In computer science Query optimizer refers to which of the following is answered by A DBMS component that determines the most efficient way to execute a given database query option
- D. A DBMS component that determines the most efficient way to execute a given database query. ✓
Correct answer
D. A DBMS component that determines the most efficient way to execute a given database query.
Explanation
In computer science Query optimizer refers to which of the following is answered by A DBMS component that determines the most efficient way to execute a given database query option D Option A A database property ensuring that relationships between tables remain consistent typically enforced through foreign keys does not match the stem it is a near-miss used to catch incomplete recall of A DBMS component that determines the most efficient way to execute a given database query Option B A precompiled collection of SQL statements stored in a database that can be executed as a single unit does not match the stem it is a near-miss used to catch incomplete recall of A DBMS component that determines the most.
Source: Database Management Systems (DBMS) Official Reference Guide
Tags: computer science, dbms, SQL, databases
Submitted by: MCQsHub Editorial
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