openapi: 3.1.0
info:
  title: Oracle Database Oracle Cloud Infrastructure Database APEX Monitoring API
  description: API for managing Oracle Database services in Oracle Cloud Infrastructure (OCI). Provides management of DB Systems, Autonomous Databases, Exadata infrastructure, database backups, Data Guard associations, database homes, and related cloud database resources.
  version: '20160918'
  contact:
    name: Oracle Cloud Support
    url: https://support.oracle.com
    email: cloud-support@oracle.com
  license:
    name: Oracle Cloud Infrastructure Terms
    url: https://www.oracle.com/cloud/free/oci-terms.html
  termsOfService: https://www.oracle.com/legal/terms.html
servers:
- url: https://database.{region}.oraclecloud.com/20160918
  description: OCI Database Service Regional Endpoint
  variables:
    region:
      default: us-ashburn-1
      description: OCI region identifier
      enum:
      - us-ashburn-1
      - us-phoenix-1
      - eu-frankfurt-1
      - uk-london-1
      - ap-tokyo-1
      - ap-mumbai-1
      - ca-toronto-1
      - ap-sydney-1
      - sa-saopaulo-1
      - ap-seoul-1
security:
- ociSignature: []
tags:
- name: Monitoring
  description: Database session monitoring, locks, alerts, and wait metrics
paths:
  /database/monitoring/sessions/:
    get:
      operationId: getSessions
      summary: Oracle Database Get all sessions
      description: Returns information about all active database sessions.
      tags:
      - Monitoring
      parameters:
      - $ref: '#/components/parameters/limitParam'
      - $ref: '#/components/parameters/offsetParam'
      responses:
        '200':
          description: Sessions retrieved successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SessionList'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /database/monitoring/sessions/{sid},{serial_number}/:
    get:
      operationId: getSession
      summary: Oracle Database Get a specific session
      description: Returns detailed information about a specific database session.
      tags:
      - Monitoring
      parameters:
      - name: sid
        in: path
        required: true
        schema:
          type: integer
      - name: serial_number
        in: path
        required: true
        schema:
          type: integer
      responses:
        '200':
          description: Session details retrieved successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SessionDetail'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '404':
          $ref: '#/components/responses/NotFound'
  /database/monitoring/session_locks/:
    get:
      operationId: getSessionLocks
      summary: Oracle Database Get all session locks
      description: Returns information about all current session locks.
      tags:
      - Monitoring
      responses:
        '200':
          description: Session locks retrieved successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SessionLockList'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /database/monitoring/session_locks/holding/:
    get:
      operationId: getBlockingLocks
      summary: Oracle Database Get blocking locks
      description: Returns information about sessions holding locks that block others.
      tags:
      - Monitoring
      responses:
        '200':
          description: Blocking locks retrieved successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SessionLockList'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /database/monitoring/session_locks/waiting/:
    get:
      operationId: getWaitingLocks
      summary: Oracle Database Get waiting locks
      description: Returns information about sessions waiting to acquire locks.
      tags:
      - Monitoring
      responses:
        '200':
          description: Waiting locks retrieved successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SessionLockList'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /database/monitoring/alerts/:
    get:
      operationId: getAlerts
      summary: Oracle Database Get all alerts
      description: Returns all database alerts and notifications.
      tags:
      - Monitoring
      responses:
        '200':
          description: Alerts retrieved successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AlertList'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /database/monitoring/alerts_summaries/by_message_level:
    get:
      operationId: getAlertSummaries
      summary: Oracle Database Get alert summaries by message level
      description: Returns alert summary statistics grouped by message level.
      tags:
      - Monitoring
      responses:
        '200':
          description: Alert summaries retrieved successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AlertSummaryList'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /database/monitoring/wait_class_metrics:
    get:
      operationId: getWaitClassMetrics
      summary: Oracle Database Get wait class metrics
      description: Returns database wait class performance metrics.
      tags:
      - Monitoring
      responses:
        '200':
          description: Wait class metrics retrieved successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/WaitClassMetricList'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /database/monitoring/wait_class_totals:
    get:
      operationId: getWaitClassTotals
      summary: Oracle Database Get wait class totals
      description: Returns total wait time statistics by wait class.
      tags:
      - Monitoring
      responses:
        '200':
          description: Wait class totals retrieved successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/WaitClassTotalList'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /database/monitoring/session_limits:
    get:
      operationId: getSessionLimits
      summary: Oracle Database Get session limits
      description: Returns the configured session limits and current usage.
      tags:
      - Monitoring
      responses:
        '200':
          description: Session limits retrieved successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SessionLimitList'
        '401':
          $ref: '#/components/responses/Unauthorized'
components:
  schemas:
    AlertSummaryList:
      type: object
      properties:
        items:
          type: array
          items:
            type: object
            properties:
              message_level:
                type: integer
              count:
                type: integer
    WaitClassTotalList:
      type: object
      properties:
        items:
          type: array
          items:
            type: object
            properties:
              wait_class:
                type: string
              total_waits:
                type: integer
                format: int64
              time_waited:
                type: number
    SessionList:
      allOf:
      - $ref: '#/components/schemas/PaginatedResponse'
      - type: object
        properties:
          items:
            type: array
            items:
              $ref: '#/components/schemas/SessionDetail'
    SessionLimitList:
      type: object
      properties:
        items:
          type: array
          items:
            type: object
            properties:
              resource_name:
                type: string
              current_utilization:
                type: integer
              max_utilization:
                type: integer
              limit_value:
                type: string
    Error:
      type: object
      properties:
        code:
          type: integer
        message:
          type: string
        type:
          type: string
    SessionDetail:
      type: object
      properties:
        sid:
          type: integer
        serial_number:
          type: integer
        username:
          type: string
        status:
          type: string
        machine:
          type: string
        program:
          type: string
        sql_id:
          type: string
        event:
          type: string
        wait_class:
          type: string
        logon_time:
          type: string
          format: date-time
    Link:
      type: object
      properties:
        rel:
          type: string
        href:
          type: string
          format: uri
    PaginatedResponse:
      type: object
      properties:
        items:
          type: array
          items: {}
        hasMore:
          type: boolean
        limit:
          type: integer
        offset:
          type: integer
        count:
          type: integer
        links:
          type: array
          items:
            $ref: '#/components/schemas/Link'
    WaitClassMetricList:
      type: object
      properties:
        items:
          type: array
          items:
            type: object
            properties:
              wait_class:
                type: string
              average_waiter_count:
                type: number
              dbtime_in_wait:
                type: number
    AlertList:
      type: object
      properties:
        items:
          type: array
          items:
            type: object
            properties:
              message_text:
                type: string
              message_level:
                type: integer
              originating_timestamp:
                type: string
                format: date-time
    SessionLockList:
      type: object
      properties:
        items:
          type: array
          items:
            type: object
            properties:
              sid:
                type: integer
              type:
                type: string
              mode_held:
                type: string
              mode_requested:
                type: string
              block:
                type: integer
  parameters:
    limitParam:
      name: limit
      in: query
      description: Maximum number of items to return
      schema:
        type: integer
        minimum: 1
        default: 25
    offsetParam:
      name: offset
      in: query
      description: Number of items to skip before returning results
      schema:
        type: integer
        minimum: 0
        default: 0
  responses:
    NotFound:
      description: The specified resource was not found
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    Unauthorized:
      description: Authentication required or credentials invalid
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  securitySchemes:
    ociSignature:
      type: http
      scheme: bearer
      description: OCI request signature authentication using API signing keys
externalDocs:
  description: OCI Database Service API Documentation
  url: https://docs.oracle.com/iaas/api/#/en/database/20160918/