openapi: 3.1.0
info:
  title: Oracle Database Oracle Cloud Infrastructure Database APEX Performance 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: Performance
  description: SQL performance analysis, execution plans, and active session history
paths:
  /database/performance/sql_statements/:
    get:
      operationId: getSQLStatements
      summary: Oracle Database Get all SQL statements
      description: Returns performance statistics for all SQL statements in the shared pool.
      tags:
      - Performance
      parameters:
      - $ref: '#/components/parameters/limitParam'
      - $ref: '#/components/parameters/offsetParam'
      responses:
        '200':
          description: SQL statements retrieved successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SQLStatementList'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /database/performance/top_sql_statements/:
    get:
      operationId: getTopSQLStatements
      summary: Oracle Database Get top SQL by CPU usage
      description: Returns the top SQL statements ranked by CPU consumption.
      tags:
      - Performance
      responses:
        '200':
          description: Top SQL statements retrieved successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SQLStatementList'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /database/performance/sql_statements/{sql_id}/:
    get:
      operationId: getSQLStatementStats
      summary: Oracle Database Get SQL statement statistics
      description: Returns detailed statistics for a specific SQL statement.
      tags:
      - Performance
      parameters:
      - name: sql_id
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: SQL statistics retrieved successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SQLStatementDetail'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '404':
          $ref: '#/components/responses/NotFound'
  /database/performance/sql_statements/{sql_id}/text:
    get:
      operationId: getSQLStatementText
      summary: Oracle Database Get SQL statement text
      description: Returns the full SQL text for a specific statement.
      tags:
      - Performance
      parameters:
      - name: sql_id
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: SQL text retrieved successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SQLText'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '404':
          $ref: '#/components/responses/NotFound'
  /database/performance/sql_statements/{sql_id}/plan:
    get:
      operationId: getSQLExecutionPlan
      summary: Oracle Database Get SQL execution plan
      description: Returns the execution plan for a specific SQL statement.
      tags:
      - Performance
      parameters:
      - name: sql_id
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: Execution plan retrieved successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ExecutionPlan'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '404':
          $ref: '#/components/responses/NotFound'
  /database/performance/sql_statements/{sql_id}/history:
    get:
      operationId: getSQLHistory
      summary: Oracle Database Get SQL statement history
      description: Returns historical performance data for a specific SQL statement.
      tags:
      - Performance
      parameters:
      - name: sql_id
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: SQL history retrieved successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SQLHistoryList'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '404':
          $ref: '#/components/responses/NotFound'
  /database/performance/active_sessions_history/:
    get:
      operationId: getActiveSessionsHistory
      summary: Oracle Database Get active sessions history
      description: Returns the active session history (ASH) data.
      tags:
      - Performance
      responses:
        '200':
          description: Active sessions history retrieved successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ActiveSessionHistoryList'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /database/performance/active_sessions_history_waits/:
    get:
      operationId: getActiveSessionsHistoryWaits
      summary: Oracle Database Get active session history waits
      description: Returns wait event data from the active session history.
      tags:
      - Performance
      responses:
        '200':
          description: Wait data retrieved successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ActiveSessionWaitList'
        '401':
          $ref: '#/components/responses/Unauthorized'
components:
  schemas:
    ActiveSessionHistoryList:
      type: object
      properties:
        items:
          type: array
          items:
            type: object
            properties:
              sample_time:
                type: string
                format: date-time
              session_id:
                type: integer
              sql_id:
                type: string
              event:
                type: string
              wait_class:
                type: string
    ExecutionPlan:
      type: object
      properties:
        sql_id:
          type: string
        plan_hash_value:
          type: integer
          format: int64
        steps:
          type: array
          items:
            type: object
            properties:
              id:
                type: integer
              operation:
                type: string
              options:
                type: string
              object_name:
                type: string
              cost:
                type: integer
              cardinality:
                type: integer
    SQLHistoryList:
      type: object
      properties:
        items:
          type: array
          items:
            type: object
            properties:
              sql_id:
                type: string
              snap_id:
                type: integer
              executions_delta:
                type: integer
              cpu_time_delta:
                type: integer
                format: int64
              elapsed_time_delta:
                type: integer
                format: int64
    Link:
      type: object
      properties:
        rel:
          type: string
        href:
          type: string
          format: uri
    ActiveSessionWaitList:
      type: object
      properties:
        items:
          type: array
          items:
            type: object
            properties:
              event:
                type: string
              wait_class:
                type: string
              total_waits:
                type: integer
              average_wait_ms:
                type: number
    SQLStatementDetail:
      type: object
      properties:
        sql_id:
          type: string
        sql_text:
          type: string
        executions:
          type: integer
          format: int64
        cpu_time:
          type: integer
          format: int64
        elapsed_time:
          type: integer
          format: int64
        buffer_gets:
          type: integer
          format: int64
        disk_reads:
          type: integer
          format: int64
        rows_processed:
          type: integer
          format: int64
    Error:
      type: object
      properties:
        code:
          type: integer
        message:
          type: string
        type:
          type: string
    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'
    SQLText:
      type: object
      properties:
        sql_id:
          type: string
        sql_fulltext:
          type: string
    SQLStatementList:
      allOf:
      - $ref: '#/components/schemas/PaginatedResponse'
      - type: object
        properties:
          items:
            type: array
            items:
              $ref: '#/components/schemas/SQLStatementDetail'
  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:
    Unauthorized:
      description: Authentication required or credentials invalid
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    NotFound:
      description: The specified resource was not found
      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/