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During extract processing, normal traversal of relationship paths proceed like a waterfall through the data model. All selected relationship paths will be followed from the parent table in the relationship to the child table. Optim provides two selectable ...
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Whenever Optim follows a relationship path from one table to another during extract processing, it makes an internal decision on how to best access the table it is about to process. The two methods it may choose to use are “table scan” or “key ...
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A database primary key is an object that defines uniqueness within a table. A primary key is defined to include one or more columns in the table to establish a unique key to identify each individual row. When a primary key includes multiple columns, the primary ...
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When an Optim client connects to an Optim Server and initiates a process such as an archive or restore, the Optim Server daemon creates a new process to run the request. The new process space will run under the authority of the user signed on within it. Access ...
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2010-02-23 |
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There are a number of factors that affect the overall runtime of a delete process. To understand the effects of these factors, you should first have an understanding of how Optim performs delete processing. First we’ll take a look at Optim delete theory, ...
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2010-02-23 |
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A discussion on using multiple database connections (parallel connections) in Option processing. The “Database Connections” setting on the request editor panel for the specific request provides the ability to control this processing. The multiple ...
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Archive Actions allow you to execute one or more custom procedures at designated points in Archive or Restore processes. To implement an Archive Action, you select the point in the process at which the custom procedure will be performed and provide an SQL ...
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2008-07-10 |
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