_______ product was acquired by Informix, integrated into its RDBMS and introduced as the Informix Universal Server an ORDBMS.
Answer: B
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Union operator is a :
Answer: C
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The ______ indexes are forced to store only record IDs in the data structure and require at least one additional I/O Operation to retrieve the actual record.
Answer: C
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A _____ is a logical unit of database processing that includes one or more data access operations that can include insertion, deletion, modification or retrieval operations.
Answer: C
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What is a disjoint less constraint?
Answer: A
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Which of the following statement on the view concept in SQL is invalid?
Answer: D
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In a multi-user database, if two users wish to update the same record at the same time, they are prevented from doing so by
Answer: D
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Wait-for graph is used for
Answer: D
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Between DRAM and magnetic disk storage another form of memory, called ______ memory is becoming common because it is non volatile.
Answer: B
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____specifies a search condition for a group or an aggregate.
Answer: B
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