Database Systems Practice Test 401
Java Database Connectivity (JDBC) Quiz Questions and Answers PDF Download - 401
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Java Database Connectivity (JDBC) Questions and Answers PDF Download: MCQ 401
The declarations of the application programs are part of the
- SQL DML statements
- SQL DTL statements
- SQL DCL statements
- SQL DDL statements
A search key containing more than one attribute is referred to as a
- Compound search key
- Composite search key
- Grouped search key
- Hashed search key
The data definition and manipulation languages form parts of a
- Single database
- 2 Databases
- Multiple database
- Joint databases
The two performance metrics i.e. throughput and response time are
- Equivalent
- Not equivalent
- Dependent
- Complex
The number of block transfers from disk and the number of disk seeks are used to estimate the cost of
- Query-execution plan
- Query-evaluation plan
- Query-processing plan
- Query-implementing plan
Database Systems Exam Prep Tests
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Java Database Connectivity (JDBC) Practice Tests
- For formation of a unique attribute name, role name is used instead of name of
- Degree of durability in which transaction commits as soon as its commit log record is written in primary site, is known to be
- Natural join operation can be added after clause
- An unknown value may be either
- Retaining duplicates is important in computing a/an