Database Systems Practice Test 68
Aggregate Functions Multiple Choice Questions (MCQs) PDF Download - 68
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The Aggregate Functions MCQ with Answers PDF (Aggregate Functions Multiple Choice Questions (MCQs) PDF e-Book) download Ch. 15-68 to prepare Database Systems Practice Tests. Learn Introduction to SQL Test PDF, Aggregate Functions Multiple Choice Questions (MCQ Quiz) for associates in computer science. The Aggregate Functions MCQ App Download: Free certification app for database languages, java database connectivity (jdbc), types of storage structure, database authorization, aggregate functions test prep to study e-learning courses.
The MCQ Quiz: All aggregate operations, return a value of null when applied on an; "Aggregate Functions" App (Play Store & App Store) with answers: Sum collection; Avg collection; Data collection; Empty collection; for associates in computer science. Practice Introduction to SQL Questions and Answers, Apple Book to download free sample for information and communication technology.
Aggregate Functions MCQ Quiz with Answers PDF Download: Test 68
All aggregate operations, return a value of null when applied on an
- Avg collection
- Sum collection
- Data collection
- Empty collection
To grant a privilege with the grantor set to the current role associated with a session, we can add the clause
- granted by current-roll
- define by current-role
- select by current-role
- set by current-role
When a transaction is rolled back and entered at the aborted stage, the available system's options are of
- 2 types
- 3 types
- 4 types
- 5 types
For each attribute, the JDBC retrieve its
- Name
- Address
- Data type
- Both A and C
The authorization types can be assigned to users as
- All
- None
- Combinations
- All of the Above
Database Systems Exam Prep Tests
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Aggregate Functions Practice Tests
- Usage of concurrent execution of transactions improves
- Projection that allows extension of operations, i.e. arithmetic and string functions to be used in projection list, is known as
- Special character that matches any substring, is
- Representation of a cross-tab with summary rows/columns can be done with a special value to represent subtotals, known as
- A language that enables users to access or manipulate data as organize it by appropriate data model, is known as