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Introduction

This document is a section of the LexEVS 5.x Programmer's Guide.

The LexEVS Data Grid Service is a standard caGrid Data service based on the LexEVS 2009 Model.

For complete documentation on caGrid Data Services, see caGrid Data Service Documentation.

Querying The System

To query the LexEVS Data Grid Service, use the standard caGrid CQL query method to compose queries. See caGrid Data Service API Documentation for more information.

Example LexEVS queries follow.

Query for a Concept with a

...

Specific Code

• Example: Concept: C12345
  :DataGridQueryByCode_Snippet

  Include Page
  DataGridQueryByCode Snippet(Deprecated -- removed in 6.3) DataGridQueryByCode Snippet(Deprecated -- removed in 6.3)

Query for a Concept with a

...

Specific Presentation Text

• Example: A concept with a namespace 'SNOMED Clinical Terms' that contains a Presentation equal to 'Heart'
  :DataGridQueryByPresentationText_Snippet

  Include Page
  DataGridQueryByPresentationText Snippet(Deprecated -- removed in 6.3) DataGridQueryByPresentationText Snippet(Deprecated -- removed in 6.3)

Restrict Results to Specific Attributes

• Example: Retrieve all of the 'localIds' of any 'SupportedAssociation' in the system.

  Include Page
  DataGridQueryRestrictByAttributes Snippet(Deprecated -- removed in 6.3)

  :

  DataGridQueryRestrictByAttributes

  _Snippet

  Snippet(Deprecated -- removed in 6.3)