> ## Documentation Index
> Fetch the complete documentation index at: https://docs.activeviam.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Get the description of all joins.

> Get the description of all the visible joins in the database.



## OpenAPI

````yaml get /activeviam/database/rest/v10/discovery/joins
openapi: 3.0.0
info:
  title: Atoti REST services
  version: 6.1.18-SNAPSHOT
servers:
  - description: Generated server url
    url: http://localhost:9090
security: []
tags:
  - description: Implementation of the REST API controller for an ActivePivot database.
    name: Database REST API
  - description: >
      XML for Analysis (XMLA) endpoint for executing MDX queries and OLAP
      discovery operations.


      This endpoint implements the XMLA protocol which is used by:

      - Microsoft Excel and other OLAP clients

      - Custom BI tools that support XMLA connectivity


      The endpoint supports both text XML and binary XML formats for improved
      performance.
    name: XMLA API
  - description: Definition of REST API to query data from ActivePivot (V10).
    name: Query REST API (V10)
  - description: Definition of REST API to query data from ActivePivot (V9).
    name: Query REST API (V9)
  - description: Implementation of the REST Bulk API of the content server (version 8).
    name: Bulk REST API
  - description: Implementation of the REST API of the content server.
    name: Content Server REST API
  - description: Implementation of the REST API controller for an ActivePivot database.
    name: Database REST API v9
  - description: ' Definition of the REST service returning the list of services exposed by an application.'
    name: Version REST API
  - description: Rest Service providing the discovery information.
    name: Discovery REST API
  - description: API to access measures information.
    name: Diagnostics API
  - description: JSON Web Token (JWT) endpoint.
    name: JWT API
  - description: >
      Endpoints to retrieve and manage query history.


      **Note:** This API is experimental and may change in future versions
      without notice.
    name: Query History REST API (Experimental)
  - description: Description of REST API to configure an ActivePivot application.
    name: Configuration REST API
  - description: API to export the result of MDX queries
    name: Data Export
  - description: >
      GetAggregatesQuery (GAQ) REST API for executing OLAP queries.


      This API provides a programmatic way to execute GetAggregatesQuery
      operations

      against Atoti cubes. Results and updates are streamed in Apache Arrow
      format for efficient

      data transfer and processing.
    name: Continuous GAQ Query REST API (Experimental)
  - description: Endpoints for AI-based optimization of Atoti cubes
    name: AI Optimizer
  - description: >
      GetAggregatesQuery (GAQ) REST API for executing OLAP queries.


      This API provides a programmatic way to execute GetAggregatesQuery
      operations

      against Atoti cubes. Results are returned in Apache Arrow format for
      efficient

      data transfer and processing.


      **Note:** This API is experimental and may change in future versions
      without notice.
    name: GAQ Query REST API (Experimental)
  - description: Implementation of the REST Bulk API of the content server.
    name: Bulk REST API
paths:
  /activeviam/database/rest/v10/discovery/joins:
    get:
      tags:
        - Database REST API
      summary: Get the description of all joins.
      description: Get the description of all the visible joins in the database.
      operationId: getJoinDescriptions_1
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/DatabaseJoinNestedMap'
          description: All visible joins returned successfully.
components:
  schemas:
    DatabaseJoinNestedMap:
      additionalProperties:
        additionalProperties:
          $ref: '#/components/schemas/JsonDatabaseJoin'
        description: Map of string keys to JsonDatabaseJoin objects
        type: object
      description: Map of join names to join configurations
      type: object
    JsonDatabaseJoin:
      properties:
        fieldMappings:
          additionalProperties:
            type: string
          type: object
        targetTable:
          type: string
      type: object

````