Data Base System MCQs deal with Data Definitions Store In, Processing That Can Applied On Images Known As, Data Is Available More Times In A System Known As, Views Can Be Seen By Specific, Only Da Tackles Only Organizational, Relationships That Have Two Entities Called, Atomicity Overcomes The …….. Problem, Bar Sign In Cardinality Of Relationships Is Explains, Column In A Relation R Is Also Known As, Selection Operation Is Associated With ……. Sign, In Sql Statements-Clauses Are Usually Placed On, Change The Name Of Column In Resultant Relation Through, Sysdate Function Is Used To Obtain Current System, The Operator That Filtrate The Only Columns Is, Precedence Of Operators Could Be Extended By Using, ……. Is Most Important To Make Appropriate Design, Query Langue Is Lik , A Transaction Has More Than ……… Type(S), Log Is A Sequence Of:
Data Base System MCQs
———– is always write after the from clause.
A. Query
B. Sub query
C. Outer query
D. All of them
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Result of the inner-query is used to evaluate the —————- in multi-column sub-queries.
A. Query
B. Sub query
C. Outer query
D. All of them
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If a query is partially ———– and system crashed then it will hold its status temporarily till system repair.
A. Executed
B. Committed
C. Roll baked
D. None of them
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A transaction has more than ——– type(s).
A. 1
B. 2
C. 3
D. 4
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We can combine the —– operation and —– operation in any kind of query.
A. Selection, insertion
B. Projection, deletion
C. Insertion, deletion
D. Selection, projection
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—————– select only the values which are satisfied with the given predicate from relation.
A. Cartesian product
B. Projection
C. Selection
D. Union
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Query is perform only a step to find the required information in a ——————.
A. Attribute
B. Tuple
C. Relation
D. All of them
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Relation algebra provides the basic —————– of relational database management system.
A. Mathematics
B. Insertion
C. Deletion
D. Updation
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Query langue is like———–
A. Machine language
B. Assembly language
C. High level language
D. Low level language
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