| ODM2 [ODM2_DBWrench_Schema.xml] | 
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| SamplingFeatureID | (Column) | 
| Name | SamplingFeatureID | 
| Comment | A foreign key to SamplingFeatures. Only required when the ReferenceMaterial is Analyzed as if it were an unknown specimen. | 
| Data Type | Integer | 
| Primary Key | |
| Nulls | 
 
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| Auto Num. | |
| Default | |
| FK | 
 
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