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Mohamad Eskandarane Questions
11022 Questions
If access paths are available on all the conditions of a disjunctive selection, each index is scanned for pointers to tuples that satisfy the individual condition
Database
2022-07-16
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418
The ___ algorithm scans each index for pointers to tuples that satisfy an individual condition
Database
2022-07-16
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437
The algorithm that uses a secondary ordered index to guide retrieval for comparison conditions involving <,≤,≥, or > is
Database
2022-07-16
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879
The strategy can retrieve a single record if the equality condition is on a key;multiple records may be retrieved if the indexing field is not a key is
Database
2022-07-16
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Which algorithm uses equality comparison on a key attribute with a primary index to retrieve a single record that satisfies the corresponding equality condition
Database
2022-07-16
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412
Search algorithms that use an index are referred to as
Database
2022-07-16
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410
Index structures are referred to as __________ since they provide a path through which data can be located and accessed
Database
2022-07-16
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408
In a ____________ the system scans each file block and tests all records to see whether they satisfy the selection condition
Database
2022-07-16
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438
In query processing, the ___________ is the lowest-level operator to access data
Database
2022-07-16
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402
Ensuring isolation property is the responsibility of the
Database
2022-07-16
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385
If the state of the database no longer reflects a real state of the world that the database is supposed to capture, then such a state is called
Database
2022-07-16
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388
A table can be logically connected to another table by defining a
Database
2022-07-16
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The relationship between DEPARTMENT and EMPLOYEE is a
Database
2022-07-16
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417
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11022
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