7573371
Beschreibung
Quiz von Miruna Teodora, aktualisiert more than 1 year ago
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Erstellt von Miruna Teodora
vor mehr als 7 Jahre
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These are types of indexes:
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trees
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networks
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spatial
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distributed
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hash
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When choosing an indexing key:
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the attributes in ORDER BY clause are candidates for the key
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the attributes in FROM clause are candidates for the key
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the attributes in HAVING clause are candidates for the key
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the attributes in GROUP BY clause are candidates for the key
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the attributes in WHERE clause are candidates for the key
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The partitioning methods offered by Oracle are:
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range partitions
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hash partitions
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list partitions
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composite range-hash partitions
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composite range-list partitions
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In Oracle subpartitions can be:
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range
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hash
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list
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index
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cluster
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When creating range partitions, there must be specified:
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the partitioning method: range
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the partitioning method: interval
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the partition's column
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the partition bounds
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the partition values
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Whatever the partition's type, the following elements must be specified:
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the method
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the intervals
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the values
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the partition columns
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the number of partitions
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When creating range-hash partitions, there must be specified:
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the partitioning method: hash
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the partition's column
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the partition bounds
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the subpartitioning method: hash
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the subpartitioning method: range
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When creating has partitions, there must be specified:
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the partition bounds
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the partition intervals
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the number of partitions
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the columns of partitions
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the partitioning method
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