| Name | Attribute_Relation |
|---|---|
| Entity Type | Table |
| Description | This intersection table is required to help support attribute-level relations in Seabed. An entity (currently only Uncertainty_System, but may be generalized in the future) makes a reference to a segment (Dimn_1_Min...Dimn_4_Max; more below) of an attribute (the associated attribute) in the entity (Entity_Containing_Attribute). The segment can be given a name when it exists. Segment means a contiguous subarray of an array-valued attribute. For example, the attribute could be a two dimensional array with 0<=dimn 1<=20, 0<=dimn 2<=317. A legal segment could be the entire array, or could be any subrange expressed on either or both dimensions. Examples are 12<=dimn 1<=15, or 12<=dimn 1<=15 and 57<=dimn 2<=84. |
| Submodel | Uncertainty |
| Entity Scope | Project |
| Primary Key | Id |
| Natural Key | |
| Generalizations | Entity , IT_Object , Tracked_Object |
| Specializations |
| Name | Value Domain / Measurement | Description | Required / Default | Type |
|---|---|---|---|---|
| Associated_Attribute | STRING32 NA |
The attribute to which the association is being made. This is typically a pure attribute name (column name in a table) but could also be an association name, e.g. for attributes implemented by association to a bulk_array object. | Yes |
VARCHAR2(32) |
| Dimn_1_Max | int No_Unit |
Used when the association is used for indexed data. The maximum index value along dimension 1 for which this association applies. An n-element array is assumed to be indexed from 0..n-1. Dimension 1 also applies to multi-values attribute values, e.g. those represented in extension tables. | No |
NUMBER(10) |
| Dimn_1_Min | int No_Unit |
Used when the association is used for indexed data. The minimum index value along dimension 1 for which this association applies. An n-element array is assumed to be indexed from 0..n-1. Dimension 1 also applies to multi-values attribute values, e.g. those represented in extension tables. | No |
NUMBER(10) |
| Dimn_2_Max | int No_Unit |
Used when the association is used for indexed data. The maximum index value along dimension 2 for which this association applies. An n-element array is assumed to be indexed from 0..n-1. | No |
NUMBER(10) |
| Dimn_2_Min | int No_Unit |
Used when the association is used for indexed data. The minimum index value along dimension 2 for which this association applies. An n-element array is assumed to be indexed from 0..n-1. | No |
NUMBER(10) |
| Dimn_3_Max | int No_Unit |
Used when the association is used for indexed data. The maximum index value along dimension 3 for which this association applies. An n-element array is assumed to be indexed from 0..n-1. | No |
NUMBER(10) |
| Dimn_3_Min | int No_Unit |
Used when the association is used for indexed data. The minimum index value along dimension 3 for which this association applies. An n-element array is assumed to be indexed from 0..n-1. | No |
NUMBER(10) |
| Dimn_4_Max | int No_Unit |
Used when the association is used for indexed data. The maximum index value along dimension 4 for which this association applies. An n-element array is assumed to be indexed from 0..n-1. | No |
NUMBER(10) |
| Dimn_4_Min | int No_Unit |
Used when the association is used for indexed data. The minimum index value along dimension 4 for which this association applies. An n-element array is assumed to be indexed from 0..n-1. | No |
NUMBER(10) |
| Existence_Kind | REF_EXISTENCE_KIND NA |
A reference value that describes the state of existence in the lifecycle of the entity, for example, Planned, Predicted, Required, Simulated, and Actual. | Yes Actual |
VARCHAR2(64) |
| GUID | STRING128 NA |
Globally Unique IDentifier for an instance of a class. This GUID is not generated by the database, but is the GUID used by the application on first access of this object. Use of this property is optional and completely under the control of application developers. | No |
VARCHAR2(128) |
| Id | ID No_Unit |
Unique identifier for this entity. | Yes |
NUMBER(38) |
| Insert_Date | DATE NA |
Date the entity was created in the repository | No |
DATE |
| Insert_User | STRING64 NA |
The name of the user responsible for the creation of this entity in the repository. | No |
VARCHAR2(64) |
| Name | ENTITY_NAME NA |
The name given to any object or data item, e.g. Name of Well, Name of Field, etc. | No |
VARCHAR2(255) |
| Original_Source | STRING64 NA |
The name of the person, Organization or project source that originally provided this entity, e.g. "IHS-EnergyData" or "FinderUpper Stratton Deeper Pool 15" | No |
VARCHAR2(64) |
| Produced_By | STRING64 NA |
ID of the activity that was executing when the entity was created, for data created programmatically. | No |
VARCHAR2(64) |
| Remarks | STRING2000 NA |
Any type of remarks added to an entity instance. | No |
VARCHAR2(2000) |
| SDAT_Label | int No_Unit |
Label used by the security system for entitlements. SDAT is Secure Data Access Technology. | No |
NUMBER(10) |
| Segment_Name | STRING64 NA |
The optional name of the segment, mostly for documentation purposes. This is meaningful when the association is to a segment (dense subarray of) dimensional data. For example, the Dimn_1_min=1, Dimn_1_Max=1097 might have meaningful Segment_Names like Overburden, Low_Velocity_Zone or Cenozoic. Segments, when they exist, are defined via dimension limits, so this name is only for annotation. | No |
VARCHAR2(64) |
| Source | STRING64 NA |
Name of the person or organization responsible for this entity"s E and P content and quality. Not the data technologist or IT expert creating the entity, for which see IT_Object.Insert_User and Update_User. | No |
VARCHAR2(64) |
| Uncertainty_System_Id | Uncertainty_System |
The Uncertainty_System instance having this attribute-level association. | No |
NUMBER(38) |
| Update_Date | DATE NA |
Date of the most-recent modification to the entity. | No |
DATE |
| Update_User | STRING64 NA |
The name of the user responsible for the last modification to this entity. | No |
VARCHAR2(64) |
| Version | STRING255 NA |
The form or variant of the entity. | Yes 1 |
VARCHAR2(255) |
| Link | To Entity | Description | Implementation Technique | Required |
|---|---|---|---|---|
| Entity_Containing_Attribute | Entity | The Entity (subtype) instance containing the attribute associated with this attribute-level association. | Assoc to One | No |
| Uncertainty_System | Uncertainty_System | The Uncertainty_System instance having this attribute-level association. | Cascade | No |