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This means that every element contains a direct pointer to its adjacent element and no index lookups are necessary.General graph databases that can store any graph are distinct from specialized graph databases such as triplestores and network databases.In computing, a one-pass algorithm is one which reads its input exactly once, in order, without unbounded buffering.A one-pass algorithm generally requires O(n) time and less than O(n) storage (typically O), where n is the size of the input.” by Markus Winand is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 Unported License.Most algorithms related to association rule mining are designed to discover frequent itemsets from a binary database.The table format is simple and easy for database users to understand and use.

The software system is a collection of software applications that can be used to create, maintain, manage and use the database.

For example, the maximum clique problem arises in the following real-world setting. Some authors use the same word with different meanings.

Consider a social network, where the graph¿s vertices represent people, and the graph¿s edges represent mutual acquaintance. Some authors use different words to mean the same thing. In computer science, an array data structure or simply array is a data structure consisting of a collection of elements, each identified by at least one array index or key.

3) If exists and value is different: Update field and field revision.

This will have two improvements: 1) Write to the database only if value changed 2) Select Update are much faster then Delete Insert Some of the benefits on database performance I can see are: I totally agree with you here (and it is an issue/feature of Drupal 7.x too) But there may be some history behind this?

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statement must relocate the changed index entries to maintain the index order.

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