| Name | R_Grain_Sorting |
|---|---|
| Entity Type | Table |
| Description | A reference table that stores valid sorting types. Sorting is a measure of the dispersion of the size frequency distribution of the gains. It can be quantitatively determined by sieve analysis in unconsolidated samples but is usually made by visual association of the sample to a set of standard charts. |
| Submodel | Rock_Sample_Description |
| Entity Scope | Reference |
| Primary Key | Code |
| Natural Key | Code |
| Generalizations | Reference_Entity , 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) |
| 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 |
|---|---|---|---|---|
| Lithology | Grain_Sorting | A value that represents the grain sorting of the rock sample. | Restrict | No |