Oracle Database Vector Search API
ORDS Vector Database vector similarity search over a vector table.
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OpenAPI Specification
openapi: 3.2.0
info:
description: Provides the Oracle REST Data Services (ORDS) users the ability to perform Oracle Database management and monitoring operations through a user-friendly REST API.
version: 2026.03.26
title: Oracle REST Data Services Vector Database/Vector Search API
contact:
name: Oracle REST Data Services
url: https://www.oracle.com/database/technologies/appdev/rest.html
x-summary: Provides the Oracle REST Data Services (ORDS) users the ability to perform Oracle Database management and monitoring operations through a user-friendly REST API.
tags:
- name: Vector Database/Vector Search
description: The operations from the Vector Database/Vector Search category.
paths:
/vecdb/vector-tables/{vector_table_name}/query:
post:
tags:
- Vector Database/Vector Search
operationId: query_vectors
summary: Perform a vector similarity search over the specified vector table
description: Perform a vector similarity search using text, a vector or an ID returning the most similar records as well as their distance.
security:
- BasicAuth: []
- BearerAuth: []
- OAuth2: []
parameters:
- name: vector_table_name
in: path
description: The name of the vector table.
required: true
schema:
type: string
requestBody:
required: true
content:
application/json:
schema:
type: object
required:
- queryBy
- topK
properties:
queryBy:
type: object
description: Query by text, vector or id.
topK:
type: number
description: The topK nearest results.
includeVectors:
type: boolean
description: ' indicates whether vector values are included in the response. Defaults to false.'
filters:
type: object
description: ' Filters to be applied over the vector table metadata.'
advancedOptions:
type: object
description: Additional query parameters.
debugFlags:
$ref: '#/components/schemas/VectorDebugFlags'
responses:
'200':
description: List of vectors.
content:
application/json:
schema:
type: object
properties:
results:
type: array
items:
$ref: '#/components/schemas/VecDBSearchItem'
'400':
description: The request body included invalid parameters.
content:
application/problem+json:
schema:
$ref: '#/components/schemas/ORDSErrorResponse'
'404':
description: The specified vector table does not exists.
content:
application/problem+json:
schema:
$ref: '#/components/schemas/ORDSErrorResponse'
x-internal-id: vecdb-vector-tables-{vector_table_name}-query-post
x-filename-id: vecdb-vector-tables-vector_table_name-query-post
components:
schemas:
ORDSErrorResponse:
type: object
required:
- code
- message
- type
- instance
properties:
code:
type: string
message:
type: string
type:
type: string
instance:
type: string
diagnosticTrace:
type: string
stackTrace:
type: string
VectorDebugFlags:
type: object
description: Debug flags to be used to trace vector modules
properties:
VECTOR_INDEX:
type: string
enum:
- low
- medium
- high
VECTOR_INDEX_NEIGHBOR_GRAPH:
type: string
enum:
- low
- medium
- high
VECTOR_INDEX_NEIGHBOR_GRAPH_BUILD:
type: string
enum:
- low
- medium
- high
VECTOR_INDEX_NEIGHBOR_GRAPH_MEM:
type: string
enum:
- low
- medium
- high
VECTOR_INDEX_NEIGHBOR_GRAPH_SEARCH:
type: string
enum:
- low
- medium
- high
VECTOR_INDEX_NEIGHBOR_GRAPH_APPCHNG:
type: string
enum:
- low
- medium
- high
VECTOR_INDEX_NEIGHBOR_GRAPH_STATS:
type: string
enum:
- low
- medium
- high
VECTOR_INDEX_NEIGHBOR_PARTITIONS:
type: string
enum:
- low
- medium
- high
VECTOR_INDEX_FIXED_VIEW:
type: string
enum:
- low
- medium
- high
VECIDX_TRANS:
type: string
enum:
- low
- medium
- high
VECIDX_TRANS_COM:
type: string
enum:
- low
- medium
- high
VECIDX_TRANS_PJ:
type: string
enum:
- low
- medium
- high
VECIDX_TRANS_PJ_DWNGRD:
type: string
enum:
- low
- medium
- high
VECIDX_TRANS_PJ_GROW:
type: string
enum:
- low
- medium
- high
VECIDX_TRANS_SJ:
type: string
enum:
- low
- medium
- high
VECIDX_TRANS_SJ_BG:
type: string
enum:
- low
- medium
- high
VEC_INDEX_CALIBRATION:
type: string
enum:
- low
- medium
- high
VECTOR_TRACE:
type: string
enum:
- low
- medium
- high
VecDBSearchItem:
type: object
properties:
id:
type: string
metadata:
type: object
vector:
type: array
items:
type: number
format: double
distance:
type: number
format: double
securitySchemes:
BasicAuth:
type: http
scheme: basic
BearerAuth:
type: http
scheme: bearer
OAuth2:
type: oauth2
flows:
implicit:
authorizationUrl: /oauth/auth
scopes: {}
authorizationCode:
authorizationUrl: /oauth/auth
tokenUrl: /oauth/token
scopes: {}
clientCredentials:
tokenUrl: /oauth/token
scopes: {}
externalDocs:
description: Oracle REST Data Services product documentation.
url: https://docs.oracle.com/en/database/oracle/oracle-rest-data-services/