Q. In query processing, the ___________ is the lowest-level operator to access data.

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Q. In a ____________ the system scans each file block and tests all records to see whether they satisfy the selection condition.

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Q. Index structures are referred to as __________ since they provide a path through which data can be located and accessed.

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Q. Search algorithms that use an index are referred to as

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Q. Which algorithm uses equality comparison on a key attribute with a primary index to retrieve a single record that satisfies the corresponding equality condition.

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Q. 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

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Q. The algorithm that uses a secondary ordered index to guide retrieval for comparison conditions involving <,≤,≥, or > is

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Q. The ___ algorithm scans each index for pointers to tuples that satisfy an individual condition.

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Q. 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. This is satisfied by

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Q. Conjunctive selection using one index. This is

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Q. A_____ is a query that retrieves rows from more than one table or view:

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Q. A condition is referred to as __________

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Q. Which oracle is the join condition is specified using the WHERE clause:

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Q. Which are the join types in join condition:

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Q. Which product is returned in a join query have no join condition:

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Q. Which is a join condition contains an equality operator:

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Q. Which join refers to join records from the write table that have no matching key in the left table are include in the result set:

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Q. Which operation are allowed in a join view:

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Q. Which view that contains more than one table in the top-level FROM clause of the SELECT statement:

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Q. Pictorial representation of an expression is called

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