MSTR VLDB Precedance levels

Levels of VLDB properties

VLDB properties are available at multiple levels, so that SQL generated for one report can be manipulated separately from the SQL generated for another, similar report. This flexibility is an important benefit of VLDB properties.
The hierarchy, or order of precedence, for VLDB properties is outlined in the following figure.
external image AR_VLDBPropertiesHierarchy.gif

external image AR_VLDBPropertiesHierarchy.gif

The arrows depict the override authority of the levels, with the report level having the greatest authority. For example, if a VLDB property is set one way for a report, and the same property is set differently for a metric included on the report, the report property takes precedence.
Conversely, if the VLDB property at the report level is set to use the default inherited value, the project level setting is used. If that level is also set to the default or if the VLDB property is not set at the project level, the setting at the database instance is used. This information is available for each property in the VLDB Properties dialog box at each level. The Use default inherited value option indicates the level that is active, while the SQL preview box displays a description of the selected setting.
The VLDB properties at the different levels work together to affect report results. However, you set the properties of each level in a different interface, so the topics of this section are grouped at the different levels.

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