Database Systems Practice Test 204
SQL Data Definition Multiple Choice Questions (MCQs) PDF Download - 204
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The SQL Data Definition MCQ with Answers PDF (SQL Data Definition Multiple Choice Questions (MCQs) PDF e-Book) download Ch. 15-204 to prepare Database Systems Practice Tests. Learn Introduction to SQL Test PDF, SQL Data Definition Multiple Choice Questions (MCQ Quiz) for associates in computer science. The SQL Data Definition MCQ App Download: Free certification app for database transactions, introduction to dbms, java database connectivity (jdbc), algebra operations in dbms, sql data definition test prep for online degree programs.
The MCQ: A null value indicates an absent value that; "SQL Data Definition" App (Free Android & iOS) with answers: Known but doesn't exist; May exist but unknown; Doesn't exist and not known; for associates in computer science. Practice Introduction to SQL Questions and Answers, Apple e-Book to download free sample for information and communication technology.
SQL Data Definition MCQ Quiz with Answers PDF Download: Test 204
A null value indicates an absent value that
- may exist but unknown
- known but doesn't exist
- doesn't exist and not known
- Both A and B
The operations with the ability to express queries that cannot be expressed by the basic relational-algebra operations, is known as
- Compound relational-algebra
- Composite relational-algebra
- Embedded relational-algebra
- Extended relational-algebra
The ResultSetMetaData object contains metadata about the
- data set
- input set
- result set
- meta data
A database can be regarded as a kind of
- Electronic file handling
- Electronic filing management
- Electronic filing storage
- Electronic filing cabinet
In the case of power outage or other system crash, the rollback occurs when the
- System starts
- System boosts
- System restarts
- System shuts down
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Computer Networks Practice Questions
- How many techniques Interim Standard 95 (IS-95) of cellular telephony has?
- When there is heavy traffic on network, queuing time is
- In North America, second-generation Interim standards 95 (IS-95) is based on
- Position of each satellite can be calculated by a
- In Challenge Handshake Authentication Protocol (CHAP), packet that is used by user to return result of calculation is called
SQL Data Definition Practice Tests
- For grouping attributes to form various tables, first way is to use
- Storage manager implements multiple data structures as part of
- ANSI published an extended standard for SQL, named as
- Database state is restored to what it was before first statement of transaction was executed, in
- Compression of data segments to reduce disk space is known as