| Name | R_Grain_Size |
|---|---|
| Entity Type | Table |
| Description | A reference table that stores valid grain size types. Size is generally described by a set of standard size grades or classes. An example is the Wentworth scale. It is usually made by visual association of the sample to a set of standard charts. |
| Submodel | Rock_Sample_Description |
| Entity Scope | Reference |
| Primary Key | Scale_Scheme , Code |
| Natural Key | Scale_Scheme , Code |
| Generalizations | Reference_Entity_Parent |
| Specializations |
| Name | Value Domain | Property / Storage Unit | Description | Required / Default | Type |
|---|---|---|---|---|---|
| Active_Flag | boolean | NA |
1 = use without restriction. 0 = avoid use - the value has been deprecated and may be removed in a later release. | Yes 1 |
NUMBER(1) |
| Code | CODE | NA |
A standard abbreviation, mnemonic, or short code that represents the reference value. | Yes |
VARCHAR2(64) |
| Description | STRING2000 | NA |
A textual definition of the reference value. | No |
VARCHAR2(2000) |
| 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 | STRING255 | NA |
The spelled-out name of the reference value. | No |
VARCHAR2(255) |
| Scale_Scheme | R_Grain_Size_Scheme |
|
Type of scaling system source used to determine the grain size like the widely accepted Wentworth scale, or a company internal grade scale. (PPDM3.7) | Yes |
VARCHAR2(64) |
| Source | CODE | NA |
The person, company or application that defined or specified the data (content) for this instance and is considered to be responsible for it. For example, POSC, EPSG, API, ISO, etc.. | No |
VARCHAR2(64) |
| 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) |
| From Entity | Link | Description | Implementation Technique | Required |
|---|---|---|---|---|
| Lithologic_Grain_Size | Grain_Size | A value that represents the grain size of the rock sample. | Restrict | Yes |
| Link | To Entity | Description | Implementation Technique | Required |
|---|---|---|---|---|
| Scale_Scheme | R_Grain_Size_Scheme | Type of scaling system source used to determine the grain size like the widely accepted Wentworth scale, or a company internal grade scale. (PPDM3.7) | Restrict | Yes |