Database Systems MCQs - Chapter 15
Introduction to SQL Quiz Questions and Answers PDF - 3
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The Quiz: Union operation automatically eliminates duplicates, unlike the; "Introduction to SQL" App Download iOS & Android (Free) with answers from clause, select clause, define clause and where clause for online computer science programs. Study set operations quiz questions, download Amazon eBook (Free Sample) for top computer science schools.
Introduction to SQL Questions & Answers PDF Download: MCQ Quiz 3
MCQ 11: The union operation automatically eliminates duplicates, unlike the
- Select clause
- From clause
- Define clause
- Where clause
MCQ 12: Duplicate tuples must be eliminated, when the query uses the clause
- Select Clause
- Where Distinct Clause
- Select distinct Clause
- From Distinct Clause
MCQ 13: Any tuple in the relation must correspond to values of the primary key attributes of some tuple in relation s, is said to be
- Unique key attribute
- Primary key attribute
- Candidate key attribute
- Foreign key attribute
MCQ 14: The SQL set operations include
- Union
- Intersect
- Except
- All of the Above
MCQ 15: The predicated that succeeds if the value on which it is applied is not null, is known to be
- Is Not Null
- Is Null
- Not Null
- Null
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Database & MySQL MCQ with Answers
- Non-procedural language and the procedural language are classified as types of
- In the EQUIJOIN condition, the operation which is used to avoid superfluous attribute is classified as
- Key which specifies that two different tuples cannot have the same value is classified as
- Application program interface in the two tier architecture database management system is provided by the
- Type of constraints that specifies the uniqueness of data stored in the database are considered as
- Concept which describes the domain of knowledge is considered as
Introduction to SQL MCQ Book Questions
- Any relation that is not part of the logical model, but is
- Method that supports high transaction rates, is known as
- Translation of the various DML statements into low-level file-system commands, is done by
- Indexing based on a sorted order of values are called
- Nonleaf nodes of the B+- tree structure form a
- SQL standard supports functions that can return tables as results, such functions are called