Module Documentation: eml-view

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The eml-view module - Data tables resulting from a database query

The eml-view module describes a view from a database management system. A view is a query statement that is stored as a database object and executed each time the view is called.

Module details

Recommended Usage: all datasets that contain one or more views
Stand-alone: yes
Imports: eml-entity, eml-documentation, eml-attribute, eml-protocol, eml-physical, eml-coverage, eml-resource, eml-constraint
Imported By:
View an image of the schema: eml-view image

Element Definitions:

view 

This element has no default value.
Content of this field: Description of this field:
Type: ViewType
The View element is a container for documenting a view. The structure of the view element is defined by the ViewType.

attributeList 

This element has no default value.
Content of this field: Description of this field:
Type: att:AttributeListType
The list of attributes associated with this entity. For more information see the eml-attribute module.

constraint 

This element has no default value.
Content of this field: Description of this field:
Type: con:ConstraintType
Description of any relational constraints on ' this entity. For more information see the eml-constraint module.

queryStatement 

This element has no default value.
Content of this field: Description of this field:
Type: res:NonEmptyStringType
The value of a queryStatement field is the actual query statement stored in the database is entered here. The query statement generates the entity being documented.
Example(s):
Select site as SiteID,common_name as CommonName, count as CountOfIndividuals from samples inner join taxonlist on samples.speciesid=taxonlist.speciesid

Attribute Definitions:

id

Type: res:IDType

Use: optional

system

Type: res:SystemType

Use: optional

scope

Type: res:ScopeType

Use: optional

Default value: document

Complex Type Definitions:

ViewType 
Content of this field: Description of this field:
Elements: Use: How many:
A choice of (
A sequence of (
ent:EntityGroup  
attributeListrequired
constraintoptionalunbounded
queryStatementrequired
)
OR
res:ReferencesGroup  
)
Attributes: Use: Default Value:
idoptional
systemoptional
scopeoptionaldocument
The ViewType complex type defines the structure for documenting a view. This type extends the EntityGroup with a queryStatement.

Group Definitions:

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