Oracle Cloud Infrastructure Documentation

DBMS_CLOUD_AI Package

The DBMS_CLOUD_AI package facilitates and configures the translation of natural language prompts to generate, run, explain SQL statements. Also, enables retrieval augmented generation and natural language-based interactions, including chatting with LLMs.

Parent topic: Autonomous Database Supplied Package Reference

DBMS_CLOUD_AI Overview

Describes the use of the DBMS_CLOUD_LINK package.

Use the DBMS_CLOUD_AI package to create AI profiles and configure them for access to a Large Language Model (LLM). Set the AI profile in the current database user session to perform tasks such as generating, running, and explaining SQL. Additionally, enable retrieval augmented generation and natural language-based interactions, including chatting with LLMs.

To know more about supported platforms and LLMs, see About Select AI.

Parent topic: DBMS_CLOUD_AI Package

Summary of DBMS_CLOUD_AI Subprograms

This section covers the DBMS_CLOUD_AI subprograms provided with Autonomous Database.

Subprogram Description

CREATE_PROFILE Procedure

This procedure creates a new AI profile for translating natural language prompts to SQL statements.

Profile Attributes

Provides AI profile attributes that you can configure.

DISABLE_PROFILE Procedure

This procedure disables an AI profile in the current database.

DROP_PROFILE Procedure

This procedure drops an existing AI profile.

ENABLE_PROFILE Procedure

This procedure enables an AI profile to use in the current database.

GENERATE Function

 This function generates a SQL statement using AI to translate.

GENERATE_SYNTHETIC_DATA Function

This function generates synthetic data.

GET_PROFILE Function

This function returns the profile name used in the current session.

GET_PROFILE Procedure

This procedure returns the profile name and the owner of the profile in the current session.

SET_ATTRIBUTE Procedure

This procedure sets AI profile attributes.

SET_PROFILE Procedure

This procedure sets AI profile for the current database.

CREATE_VECTOR_INDEX Procedure

This procedure creates a vector index in the specified vector database, and populates it with data from an object store using an asynchronous scheduler job.

DROP_VECTOR_INDEX Procedure

This procedure removes a vector store index. It normally removes the vector store index object and deletes the vector database.

DISABLE_VECTOR_INDEX Procedure

This procedure disables a vector index object in the current database. When disabled, an AI profile cannot use the vector index, and the system does not load data into the vector store.

ENABLE_VECTOR_INDEX Procedure

This procedure enables or activates a previously disabled vector index object.

UPDATE_VECTOR_INDEX Procedure

This procedure updates an existing vector store index with a specified value of the vector index attribute.

Vector Index Attributes

Provides vector index profile attributes that you can configure.
  • CREATE_PROFILE Procedure
    The procedure creates a new AI profile for translating natural language prompts to SQL statement.
  • DROP_PROFILE Procedure
    The procedure drops an existing AI profile. If the profile does not exist, then the procedure throws an error.
  • ENABLE_PROFILE Procedure
    This procedure enables the AI profile that the user specifies. The procedure changes the status of the AI profile to ENABLED.
  • DISABLE_PROFILE Procedure
    This procedure disables the AI profile in the current database. The status of the AI profile is changed to DISABLED by this procedure.
  • GET_PROFILE Function
    This function returns the AI profile name set in the current session.
  • GET_PROFILE Procedure
    This procedure returns the AI profile name and the owner set in the current session.
  • SET_ATTRIBUTE Procedure
    This procedure enables you to set AI profile attributes.
  • SET_PROFILE Procedure
    This procedure sets AI profile for current session.
  • GENERATE Function
    This function provides AI translation in a stateless manner. With your existing AI profile, you can use this function to perform the supported actions such as showsql, narrate, or chat. The default action is showsql.
  • GENERATE_SYNTHETIC_DATA Function
    Use this procedure to generate synthetic data for a single table, multiple tables or a full schema.
  • Profile Attributes
    Attributes of an AI profile help to manage and configure the behavior of the AI profile. Some attributes are optional and have a default value.
  • CREATE_VECTOR_INDEX Procedure
    This procedure creates a vector index in the specified vector database, and populates it with data from an object store using an asynchronous scheduler job.
  • DROP_VECTOR_INDEX Procedure
    This procedure removes a vector store index. It normally removes the vector store index object and deletes the vector store. If set to FALSE, the argument include_data ensures the procedure only removes the vector store index object while retaining the vector store.
  • DISABLE_VECTOR_INDEX Procedure
    This procedure disables a vector index object in the current database. When disabled, an AI profile cannot use the vector index, and the system does not load data into the vector store as new data is added to the object store and does not perform indexing, searching or querying based on the index.
  • ENABLE_VECTOR_INDEX Procedure
    This procedure enables or activates a previously disabled vector index object. Generally, when you create a vector index, by default it is enabled such that the AI profile can use it to perform indexing and searching.
  • UPDATE_VECTOR_INDEX Procedure
    This procedure updates an existing vector store index with a specified value of the vector index attribute.
  • Vector Index Attributes
    Attributes of a vector index help to manage and configure the behavior of the vector index. You can add custom index attributes as necessary. Some attributes are optional and have a default value.

Parent topic: DBMS_CLOUD_AI Package

CREATE_PROFILE Procedure

The procedure creates a new AI profile for translating natural language prompts to SQL statement.

Syntax

DBMS_CLOUD_AI.CREATE_PROFILE
   profile_name        IN  VARCHAR2,
   attributes          IN  CLOB      DEFAULT NULL,
   status              IN  VARCHAR2  DEFAULT NULL,
   description         IN  CLOB      DEFAULT NULL
);

Parameters

Parameter Description

profile_name

A name for the AI profile. The profile name must follow the naming rules of Oracle SQL identifier. Maximum length of profile name is 125 characters.

This is a mandatory parameter.

attributes

Profile attributes in JSON format. See AI Profile Attributes for more details.

The default value is NULL.
status

Status of the profile.

The default value is enabled.

description

Description for the AI profile.

The default value is NULL.

Example

BEGIN
     DBMS_CLOUD_AI.CREATE_PROFILE(
          profile_name    => 'OpenAI',
          attributes      => JSON_OBJECT('provider' value 'openai',
                                         'credential_name' value 'openai_cred'),
		status     => 'enabled',							 
          description     => 'AI profile to use OpenAI for SQL translation'
     );
END;
/

DROP_PROFILE Procedure

The procedure drops an existing AI profile. If the profile does not exist, then the procedure throws an error.

Syntax

DBMS_CLOUD_AI.DROP_PROFILE(
       profile_name        IN   VARCHAR2,
       force               IN   BOOLEAN DEFAULT FALSE
 );

Parameters

Parameter Description

profile_name

Name of the AI profile

force

If TRUE, then the procedure ignores errors if AI profile does not exist.

The default value for this parameter is FALSE.

Example

BEGIN
     DBMS_CLOUD_AI.DROP_PROFILE(profile_name => 'OPENAI');
END;
/

Usage Notes

Use force to drop a profile and ignore errors if AI profile does not exist.

ENABLE_PROFILE Procedure

This procedure enables the AI profile that the user specifies. The procedure changes the status of the AI profile to ENABLED.

Syntax

DBMS_CLOUD_AI.ENABLE_PROFILE(
     profile_name         IN   VARCHAR2
 );

Parameters

Parameter Description

profile_name

Name for the AI profile to enable

This parameter is mandatory.

Example to Enable AI Profile

BEGIN
     DBMS_CLOUD_AI.ENABLE_PROFILE(
         profile_name    => 'OPENAI'
     );
END;
/

DISABLE_PROFILE Procedure

This procedure disables the AI profile in the current database. The status of the AI profile is changed to DISABLED by this procedure.

Syntax

DBMS_CLOUD_AI.DISABLE_PROFILE(
      profile_name  IN  VARCHAR2
);

Parameters

Parameter Description

profile_name

Name for the AI profile.

This parameter is mandatory.

Example

BEGIN
     DBMS_CLOUD_AI.DISABLE_PROFILE(
         profile_name    => 'OPENAI'
     );
END;
/

GET_PROFILE Function

This function returns the AI profile name set in the current session.

Syntax

DBMS_CLOUD_AI.GET_PROFILE(
    profile_name      IN  VARCHAR2
);

Parameters

Parameter Description

profile_name

A name for the AI profile in the current session.

This parameter is mandatory.

Example

This example shows how you can display the name of the profile in the current session.


   SELECT DBMS_CLOUD_AI.GET_PROFILE
   from DUAL;

GET_PROFILE Procedure

This procedure returns the AI profile name and the owner set in the current session.

Syntax

DBMS_CLOUD_AI.GET_PROFILE(                                                      
      profile_name  OUT  VARCHAR2,                                          
      profile_owner OUT  VARCHAR2                                           
);

Parameters

Parameter Description

profile_name

A name for the AI profile in the current session.

This parameter is mandatory.
profile_owner Identifies the owner of the AI profile in the current session.

Example

This example shows how you can display the name and owner of the profile in the current session.

DECLARE                                                              
       l_profile_name  DBMS_ID;                                           
       l_profile_owner DBMS_ID;                                           
     BEGIN                                                                
       DBMS_CLOUD_AI.GET_PROFILE(profile_name => l_profile_name,          
                                 profile_owner => l_profile_owner);       
     END;

SET_ATTRIBUTE Procedure

This procedure enables you to set AI profile attributes.

Syntax

DBMS_CLOUD_AI.SET_ATTRIBUTE(
      profile_name         IN   VARCHAR2,
      attribute_name       IN   VARCHAR2,
      attribute_value      IN   CLOB
);

Parameters

Only the owner can set or modify the attributes of the AI profile. For a list of supported attributes, see Profile Attributes.

Parameter Description

profile_name

Name of the AI profile for which you want to set the attributes.

This parameter is mandatory.

attribute_name

Name of the AI profile attribute

This parameter is mandatory.

attribute_value

Value of the profile attribute.

The default value is NULL.

Example

BEGIN
 DBMS_CLOUD_AI.SET_ATTRIBUTE(
   profile_name    => 'OPENAI',
   attribute_name  => 'credential_name',
   attribute_value => 'OPENAI_CRED_NEW'
 );
END;
/

SET_PROFILE Procedure

This procedure sets AI profile for current session.

After setting an AI profile for the database session, any SQL statement with the prefix SELECT AI is considered a natural language prompt. Depending on the action specified with the AI prefix, a response is generated using AI. To use the AI prefix, see Examples of Using Select AI. Optionally, it is possible to override the profile attributes or modify attributes by specifying them in JSON format. See SET_ATTRIBUTE Procedure for setting the attributes.

The AI profile can only be set for current session if the owner of the AI profile is the session user.

To set an AI profile for all sessions of a specific database user or all user sessions in the database, consider using a database event trigger for AFTER LOGON event on the specific user or the entire database. See CREATE TRIGGER Statement for more details.

Syntax

DBMS_CLOUD_AI.SET_PROFILE(
    profile_name      IN  VARCHAR2,
);

Parameters

Parameter Description

profile_name

A name for the AI profile in the current session.

This parameter is mandatory.

Example


   BEGIN
        DBMS_CLOUD_AI.SET_PROFILE(
          profile_name    => 'OPENAI'
        );
   END;
   /

GENERATE Function

This function provides AI translation in a stateless manner. With your existing AI profile, you can use this function to perform the supported actions such as showsql, narrate, or chat. The default action is showsql.

Overriding some or all of the profile attributes is also possible using this function.

Syntax

DBMS_CLOUD_AI.GENERATE(
    prompt          IN  CLOB,
    profile_name    IN  VARCHAR2 DEFAULT NULL,
    action          IN  VARCHAR2 DEFAULT NULL,
    attributes      IN  CLOB     DEFAULT NULL
) RETURN CLOB;

Parameters

Parameter Description

prompt

Natural language prompt to translate using AI.

The prompt can include SELECT AI <action> as the prefix. The action can also be supplied separately as an "action" parameter. The action supplied in prompt overrides the "action" parameter. Default action is showsql.

This parameter is mandatory.

profile_name

Name of the AI profile. This parameter is optional if an AI profile is already set in the session using DBMS_CLOUD_AI.SET_PROFILE.

The default value is NULL.

The following conditions apply:
  • If a profile is set in the current session, the user may omit profile_name argument in the DBMS_CLOUD_AI.GENERATE function.
  • If the profile_name argument is supplied in the DBMS_CLOUD_AI.GENERATE function, it overrides any value set in the session using the DBMS_CLOUD_AI.SET_PROFILE procedure.
  • If there is no profile set in the session using the DBMS_CLOUD_AI.SET_PROFILE procedure, the profile_name argument must be supplied in the DBMS_CLOUD_AI.GENERATE function.
Note

For Database Actions, you can either specify profile_name argument in DBMS_CLOUD_AI.GENERATE or you can run two steps as a PL/SQL script: DBMS_CLOUD_AI.SET_PROFILE and DBMS_CLOUD_AI.GENERATE. 
EXEC DBMS_CLOUD_AI.set_profile('OPENAI');

-----------------------------------------------
SELECT DBMS_CLOUD_AI.GENERATE(prompt       => 'how many customers',
                              profile_name => 'OPENAI',
                              action       => 'showsql')
FROM dual;

------------------------------------------------
SELECT DBMS_CLOUD_AI.GENERATE(prompt       => 'how many customers',
                              profile_name => 'OPENAI',
                              action       => 'narrate')
FROM dual;
-------------------------------------------
SELECT DBMS_CLOUD_AI.GENERATE(prompt       => 'what is oracle autonomous database',
                              profile_name => 'OPENAI',
                              action       => 'chat')
FROM dual;
See Executing SQL Statements in the Code Editor for more information.
action

Action for translating natural prompt using AI. The supported actions include showsql (default), narrate, and chat. Descriptions of actions are included in Use AI Keyword to Enter Prompts.

Note

This function does not support the runsql action. If you supply the runsql action, it returns the following error:
ORA-20000: runsql action is not supported by generate function ORA-06512: at "C##CLOUD$SERVICE.DBMS_CLOUD", line xxxx 
ORA-06512: at "C##CLOUD$SERVICE.DBMS_CLOUD_AI", line 2696 ORA-06512: at line x
attributes Override specific AI profile attributes by supplying attributes in JSON format. See Profile Attributes for more details.

Examples

The following examples illustrate showsql, narrate, and chat actions that can be used with the DBMS_CLOUD_AI.GENERATE function.

An example with showsql action is as follows: 

SELECT DBMS_CLOUD_AI.GENERATE(prompt       => 'how many customers',
                              profile_name => 'OPENAI',
                              action       => 'showsql')
FROM dual;

An example with narrate action is as follows: 

SELECT DBMS_CLOUD_AI.GENERATE(prompt       => 'how many customers',
                              profile_name => 'OPENAI',
                              action       => 'narrate')
FROM dual;

An example with chat action is as follows: 

SELECT DBMS_CLOUD_AI.GENERATE(prompt       => 'what is oracle autonomous database',
                              profile_name => 'OPENAI',
                              action       => 'chat')
FROM dual;

You can use DBMS_CLOUD_AI.GENERATE in a procedure and run the function. The following example takes an ai_prompt, profile_name, and action as input parameters and calls DBMS_CLOUD_AI.GENERATE

create or replace FUNCTION call_select_ai (ai_prompt  IN VARCHAR2, 
                                           ai_profile IN VARCHAR2,
                                           ai_action  IN VARCHAR2) -- valid for 'chat', 'narrate', 'showsql'
                                           RETURN CLOB AS sai_resp clob;
BEGIN
  sai_resp := DBMS_CLOUD_AI.GENERATE(prompt       => ai_prompt,
                                     profile_name => ai_profile,
                                     action       => ai_action);  
  return(sai_resp);
END call_select_ai;

GENERATE_SYNTHETIC_DATA Function

Use this procedure to generate synthetic data for a single table, multiple tables or a full schema.

The following is the syntax to generate synthetic data for a single table.

Syntax

DBMS_CLOUD_AI.GENERATE_SYNTHETIC_DATA(
  profile_name        IN  VARCHAR2,
  object_name         IN  DBMS_ID,
  owner_name          IN  DBMS_ID,
  record_count        IN  NUMBER,
  user_prompt         IN  CLOB DEFAULT NULL,
  params              IN  CLOB DEFAULT NULL
);

The following is the syntax to generate synthetic data for multiple tables.

DBMS_CLOUD_AI.GENERATE_SYNTHETIC_DATA(
  profile_name        IN  VARCHAR2,
  object_list         IN  CLOB,
  params              IN  CLOB DEFAULT NULL
);

Parameters

Parameter Mandatory Description

profile_name

 Yes

The AI profile containing necessary LLM service information. This can be created by CREATE_PROFILE Procedure.

object_name

 Yes Specify a table name to populate synthetic data.
  • SELECT and INSERT privilege on the table objects are needed for the user using it.
  • The table is either empty or have records in it.
owner_name No

Specify the database user who owns the referenced object. If no specific owner is provided, the procedure defaults to using the schema of the user running it.
record_count No

The number of records to be synthetically generated.

user_prompt

 No Additional information that a user can mention to generate synthetic data. For example, to generate a record for a table called MOVIE with a release_date column, the user_prompt can be:

the release date for the movies should be in 2019

params

 No

Optional attributes provided in JSON object string format to modify the behavior of an API. See Optional Parameters.

object_list

 Yes Use this parameter for generating synthetic data on multiple tables. This parameter takes in table object information along with it's arguments and contains the same arguments provided in the single table. See object_list Parameters.

Optional Parameters

Parameter Value Datatype Value Description

sample_rows

Number

0 <= sample_rows <= 100

Specify the number of rows from the table to use as a sample to guide the LLM in data generation.

A value of 0 means no sample rows will be used. The default value is 0.

table_statistics

Boolean
  • True
  • False

Enable or disable the use of table statistics information.

The default value is False.

priority

String

Valid values:

  • HIGH
  • MEDIUM
  • LOW

Assign a priority value that defines the number of parallel requests sent to the LLM for generating synthetic data. Tasks with a higher priority will consume more database resources and complete faster.

The default value is HIGH

  • HIGH: Specifies the number of parallel LLM requests based on the database's ECPU count (or OCPU count if your database uses OCPUs).

  • MEDIUM: Sets the number of concurrent processes according to the concurrency limit for Medium service. The default value is 4.

  • LOW: Runs the pipeline job in a serial order, without parallel processing.

The maximum number of concurrent parallel processes used for synthetic data generation is limited to 64.

comments

 Boolean
  • True
  • False

Enable or disable sending comments to the LLM to guide data generation.

The default value is False.

object_list Parameters

Parameter Value Datatype Mandatory Description

owner

String

Yes

Specifies the database user who owns the object being referenced. If no specific owner is provided, the procedure will default to using the schema of the user running it.

name

String

No

 Specify a table name to populate synthetic data. SELECT and INSERT privilege on the table objects are needed for the user using it.The table is either empty or have records in it.

record_count

Number

No

The number of records to be synthetically generated. Provide a number greater than 0.

Supply record_count or record_count_percentage.

record_count_percentage

Number

No

The percentage of number of records to be synthetically generated. Provide a number greater than 0.

For a Metadata Clone database, where the table metadata including statistics is preserved, the record_count_percentage parameter is supported.

Supply record_count or record_count_percentage.

When using the record_count_percentage parameter, the final record count in the table is calculated as: 
Original_Num_Rows *
      record_count_percentage

user_prompt

 String No Same as user_prompt in Parameters. The user_prompt is associated with a specific table object.

Examples

The following examples show the DBMS_CLOUD_AI.GENERATE_SYNTHETIC_DATA function for generating synthetic data for a single table and multiple tables. For a complete example and to view more examples, see Example: Generate Synthetic Data. 

BEGIN
    DBMS_CLOUD_AI.GENERATE_SYNTHETIC_DATA(
        profile_name => 'GENAI',
        object_name  => 'Director',
        owner_name   => 'ADB_USER',
        record_count => 5
    );
END;
/
PL/SQL procedure successfully completed.
BEGIN
    DBMS_CLOUD_AI.GENERATE_SYNTHETIC_DATA(
        profile_name => 'GENAI',
        object_list => '[{"owner": "ADB_USER", "name": "Director","record_count":5},
                         {"owner": "ADB_USER", "name": "Movie_Actor","record_count":5},
                         {"owner": "ADB_USER", "name": "Actor","record_count":10},
                         {"owner": "ADB_USER", "name": "Movie","record_count":5,"user_prompt":"all movies are released in 2009"}]'
    );
END;
/
PL/SQL procedure successfully completed.

Profile Attributes

Attributes of an AI profile help to manage and configure the behavior of the AI profile. Some attributes are optional and have a default value.

Attributes

Attribute Name Description

azure_deployment_name

Name of the Azure OpenAI Service deployed model. The name can only include alphanumeric characters, underscore character (_) and a hyphen (-) character. The name cannot end with an underscore (_) or a hyphen (-). To know how to get the azure_deployment_name, see Create and deploy an Azure OpenAI Service resource.

azure_embedding_deployment_name

Name of the Azure OpenAI deployed embedding model.

The name can only include alphanumeric characters, underscore, and hyphen. The name can't start or end with a hyphen or underscore.

azure_resource_name

Name of the Azure OpenAI Service resource. The resource name can only include alphanumeric characters and hyphens, and can't start or end with a hyphen. To know how to get the azure_resource_name, see Create and deploy an Azure OpenAI Service resource.

comments

Include column comments in the metadata used for translating natural language prompts using AI. BOOLEAN datatype is supported. The valid values are TRUE or FALSE for a string with VARCHAR2 datatype.

Note

Boolean values are not applicable in the DBMS_CLOUD_AI.SET_ATTRIBUTE procedure when setting a single attribute because attribute_value parameter is of CLOB data type.

conversation

A VARCHAR2 attribute that indicates if conversation history is enabled for a profile. Valid values are true or false. The default value is false. The values are not case sensitive.

credential_name

The name of the credential to access the AI provider APIs.

Credential using bearer tokens can be created by using the provider name as the user name and bearer token as the password.

Vault Secret credentials are also supported.

Principal authentication, for example, Azure service principal, is also supported. For more information on how to configure it, see Use Azure Service Principal to Access Azure Resources.

This is a mandatory attribute. See CREATE_CREDENTIAL Procedure.

embedding_model

The embedding model defined in the AI profile. The following are the supported AI providers for the embedding models with their default values:

  • OCI GenAI: cohere.embed-english-v3.0
  • OpenAI: text-embedding-ada-002
  • Azure OpenAI: text-embedding-ada-002
  • Cohere: embed-english-v2.0
  • Google: text-embedding-004
Note

The embedding_model parameter is not applicable for Anthropic and Hugging Face.

max_tokens

Denotes the number of tokens to predict per generation. Default is 1024. See Tokens and Tokenizers for more details.

model

The name of the AI model being used to generate responses.

See Select your AI Provider and LLMs and specify the model name.

Note

  • Cohere: Smaller, "light" models are faster, while larger models perform better. Custom models can also be supplied with their full ID.

  • OCI Generative AI: The Chat Models are supported for all Select AI actions such as runsql, showsql, explainsql, narrate, and chat.

    Select AI supports pretrained models for OCI Generative AI. Custom models can also be supplied with their full OCIDs. If you are supplying OCID or oci_endpoint_id, be sure to provide either oci_runtimetype or oci_apiformat depending on the OCI Chat or Generate Text models.

    To know more about supported models in OCI Generative AI, see Pretrained Foundational Models in Generative AI.

  • This parameter is not used for Azure as the model is determined when you create your deployment in the Azure OpenAI Service portal.

object_list

Array of JSON objects specifying the owner and object names that are eligible for natural language translation to SQL. To include all objects of a given user, omit the "name" and only specify the "owner" key in the JSON object.

The following types of objects can be used:

  • tables
  • views
  • materialized views
  • global temporary tables
  • external tables
  • synonyms on the above object types

For translation natural language to SQL, the object name, object owner, object columns and comments are sent to the AI provider using HTTPS requests. Avoid specifying objects with sensitive object name, column names or comments in the object list.

AI providers may have limit on the size of metadata allowed in translation requests. Consider limiting the list of objects suitable for the natural language prompts by your application users.

Format:
[
  {"owner": "SH", "name": "SALES",
  {"owner": "TEST_USER"}
]

External tables created using sync of OCI Data Catalog or AWS Glue can also be used the object list. This helps in managing metadata in central Data Catalogs and use the metadata directly for translating natural language prompts using AI.

oci_apiformat

Specifies the format in which the API expects data to be sent and received. Use this attribute to generate text responses. This attribute applies to OCI Generative AI Chat Models in a dedicated AI cluster. Specify this attribute when you specify a model OCID in the model attribute or provide an endpoint in the oci_endpoint_id attribute.

Supported values are:
  • COHERE
  • GENERIC
Note

Use this attribute for OCI Generative AI Chat Models

oci_compartment_id

Specifies the OCID of the compartment you are permitted to access when calling the OCI Generative AI service. The compartment ID can contain alphanumeric characters, hyphens and dots.

The default is the compartment ID of the PDB.

oci_endpoint_id

This attributes indicates the endpoint OCID of the Oracle dedicated AI hosting cluster. The endpoint ID can contain alphanumeric characters, hyphens and dots. To find the endpoint OCID, see Getting an Endpoint's Details in Generative AI.

When you want to use the Oracle dedicated AI cluster, you must provide the endpoint OCID of the hosting cluster.

By default, the endpoint ID is empty and the model is on-demand on a shared infrastructure.

oci_runtimetype

This attribute indicates the runtime type of the provided model. This attribute is applicable to OCI Generate Text models in a dedicated AI cluster. Specify this attribute when you specify a model OCID in the model attribute or provide an endpoint in the oci_endpoint_id attribute.

All permitted values can be found in OCI Generative AI runtimeType. See LlmInferenceRequest Reference.

The supported values are:
  • COHERE
  • LLAMA

provider

AI provider for the AI profile.

Supported providers:

  • openai
  • cohere
  • azure
  • oci
  • google
  • anthropic
  • huggingface

This is a mandatory attribute.

region
This attribute indicates the location of the Generative AI cluster that you want to use. The region can contain alphanumeric characters and hyphen characters.
Note

The Oracle Generative AI cluster is available in Chicago, Frankfurt, and London regions. See Pretrained Foundational Models in Generative AI.
The default region is us-chicago-1.

stop_tokens

The generated text will be terminated at the beginning of the earliest stop sequence. Sequence will be incorporated into the text. The attribute value must be a valid array of string values in JSON format. stop_tokens takes a JSON array as input. To learn more about stop tokens or stop sequences, see OpenAI or Cohere documentation.

temperature

Sampling from Generate Text models incorporates randomness, so that the same prompt may yield different outputs each time you hit "generate". Temperature is a non-negative float number used to tune the degree of randomness. Lower temperatures mean less random generations. See Temperature for more details. This parameter is applicable to all the supported service providers.

vector_index_name

Name of the vector index. The vector index name must follow the naming rules of Oracle SQL identifier. Maximum length of the vector store name is 125 characters.
The following example is using Cohere as the provider and displays custom profile attributes:
BEGIN
  DBMS_CLOUD_AI.CREATE_PROFILE(
     profile_name => 'COHERE',
     attributes =>
      '{"provider": "cohere",
        "credential_name": "COHERE_CRED",
        "object_list": [{"owner": "ADB_USER"}],
        "max_tokens":512,
        "stop_tokens": [";"],
        "model": "command-nightly",
        "temperature": 0.5,
        "comments": true
       }');
END;
/

The following example shows custom profile attributes using OCI Generative AI:

BEGIN                                                                        
  DBMS_CLOUD_AI.CREATE_PROFILE(                                              
      profile_name => 'GENAI',                                                             
      attributes => '{"provider": "oci",                                                                   
        "credential_name": "GENAI_CRED",                                     
        "object_list": [{"owner": "SH", "name": "customers"},                
                        {"owner": "SH", "name": "countries"},                
                        {"owner": "SH", "name": "supplementary_demographics"},
                        {"owner": "SH", "name": "profits"},                  
                        {"owner": "SH", "name": "promotions"},               
                        {"owner": "SH", "name": "products"}],
        "oci_compartment_id": "ocid1.compartment.oc1...",
	"oci_endpoint_id": "ocid1.generativeaiendpoint.oc1.us-chicago-1....",
	"region": "us-chicago-1",
	"model": "cohere.command-light",
	"oci_runtimetype": "COHERE"            
       }');                                                                  
END;                                                                         
/

CREATE_VECTOR_INDEX Procedure

This procedure creates a vector index in the specified vector database, and populates it with data from an object store using an asynchronous scheduler job.

Syntax

PROCEDURE CREATE_VECTOR_INDEX(                                              
   index_name          IN  VARCHAR2,                                        
   attributes          IN  CLOB      DEFAULT NULL,                          
   status              IN  VARCHAR2  DEFAULT NULL,                          
   description         IN  CLOB      DEFAULT NULL                           
);

Parameters

Parameter Description

index_name

Name of the vector index. The vector index name must follow the naming rules of Oracle SQL identifier. Maximum length of vector store name is 125 characters.

This is a mandatory parameter.

attributes

Custom attributes for the vector index in JSON. To see a list of configurable parameters, see Vector Index Attributes.

The default value is NULL.
status
Status of the vector index. The possible values are:
  • Enabled
  • Disabled

The default value is Disabled.

description

Description for the vector index.

The default value is NULL.

Example

The following example demonstrates how to create a vector index and configure the attributes as JSON parameters.

BEGIN                                                                
       DBMS_CLOUD_AI.CREATE_VECTOR_INDEX(                                 
            index_name    => 'MY_INDEX'                                   
            attributes    => JSON_OBJECT(                                 
                       'vector_db_provider' value 'oracle',
                       'vector_table_name'  value 'oracle_mycollection',              
                       'profile_name'      value 'OCIGENAI',         
                       'location'          value                          
                         'https://objectstorage.us-phoenix-1.' ||         
                         'oraclecloud.com/n/mynamespace/b/mybucket',      
                       'object_store_credential_name'   value 'OS_CRED',              
                       'chunk_size'        value 2048,                    
                       'chunk_overlap'     value 256,                     
                       'refresh_rate'      value 720)                     
       );                                                                 
END;                                                                 
/

DROP_VECTOR_INDEX Procedure

This procedure removes a vector store index. It normally removes the vector store index object and deletes the vector store. If set to FALSE, the argument include_data ensures the procedure only removes the vector store index object while retaining the vector store.

Syntax

PROCEDURE DROP_VECTOR_INDEX(                                                
   index_name          IN  VARCHAR2,           
   include_data        IN  BOOLEAN DEFAULT TRUE,                            
   force               IN  BOOLEAN DEFAULT FALSE                           
);

Parameters

Parameter Description

index_name

Name of the vector index. The vector index name must follow the naming rules of Oracle SQL identifier. Maximum length of vector store name is 125 characters.

This is a mandatory parameter.

include_data

Indicates whether to delete both the customer's vector store and vector index along with the vector index object.

Possible values:

  • TRUE
  • FALSE

The default value is TRUE.

force

Indicates whether to ignore errors that occur if the vector index does not exist.

Possible values:

  • TRUE
  • FALSE

If set to TRUE, this parameter bypasses any errors that occur if the vector index does not exist.

The default value is FALSE.

Example

BEGIN
DBMS_CLOUD_AI.DROP_VECTOR_INDEX(
        index_name     => 'MY_INDEX',
        include_data   => FALSE,
        force          => TRUE
     );                                                                 
END;                                                                 
/

DISABLE_VECTOR_INDEX Procedure

This procedure disables a vector index object in the current database. When disabled, an AI profile cannot use the vector index, and the system does not load data into the vector store as new data is added to the object store and does not perform indexing, searching or querying based on the index.

Syntax

DBMS_CLOUD_AI.DISABLE_VECTOR_INDEX(                                              
   index_name       IN  VARCHAR2                                            
);

Parameters

Parameter Description

index_name

Name of the vector index. The vector index name must follow the naming rules of Oracle SQL identifier. Maximum length of vector store name is 125 characters.

This is a mandatory parameter.

Example

You can disable a vector index by providing the name of the vector index.

BEGIN                                                                
   DBMS_CLOUD_AI.DISABLE_VECTOR_INDEX(index_name => 'MY_INDEX');       
END;                                                                 
/

ENABLE_VECTOR_INDEX Procedure

This procedure enables or activates a previously disabled vector index object. Generally, when you create a vector index, by default it is enabled such that the AI profile can use it to perform indexing and searching.

When enabled, a vector index allows an AI profile to use it for loading new data from an object store into a vector store at a user-specified refresh rate. You can specify the refresh_rate parameter through the JSON object list. To configure the JSON attributes, see Vector Index Attributes.

Syntax

DBMS_CLOUD_AI.ENABLE_VECTOR_INDEX(                                              
   index_name       IN  VARCHAR2                                            
);

Parameters

Parameter Description

index_name

Name of the vector index. The vector index name must follow the naming rules of Oracle SQL identifier. Maximum length of vector store name is 125 characters.

This is a mandatory parameter.

Example

You can enable or activate a vector index by specifying the vector index name as follows:

BEGIN                                                                
   DBMS_CLOUD_AI.ENABLE_VECTOR_INDEX(index_name => 'MY_INDEX');       
END;                                                                 
/

UPDATE_VECTOR_INDEX Procedure

This procedure updates an existing vector store index with a specified value of the vector index attribute.

Syntax

DBMS_CLOUD_AI.UPDATE_VECTOR_INDEX(                                                 
     index_name         IN  VARCHAR2,                                         
     attributes         IN  CLOB                           
  );

Parameters

Parameter Description

index_name

Name of the vector index. The vector index name must follow the naming rules of Oracle SQL identifier. Maximum length of vector store name is 125 characters.

This is a mandatory parameter.

attributes

Name of the custom attributes specified as JSON parameters in CREATE_VECTOR_INDEX procedure.

You cannot modify the following attributes:

  • location
  • vector_table_name
  • chunk_size
  • chunk_overlap
  • vector_distance_metric
  • vector_dimension

This is a mandatory parameter.
attribute_value

User specified value for the custom attribute_name.

The default value is NULL.

Example

BEGIN                                                                
   DBMS_CLOUD_AI.UPDATE_VECTOR_INDEX(                                 
      index_name       => 'MY_INDEX',                                   
      attribute_name   => 'vector_db_credential_name',                
      attribute_value  => 'NEW_CRED'                           
   );                                                                 
END;                                                                 
/

Vector Index Attributes

Attributes of a vector index help to manage and configure the behavior of the vector index. You can add custom index attributes as necessary. Some attributes are optional and have a default value.

Attributes

Attribute Name Value Mandatory Description
chunk_size 1024 (default) No

Text size of chunking the input data.

For text data, this means the number of characters.
chunk_overlap 128 (default) No

Specifies the amount of overlapping characters between adjacent chunks of text. This attribute is useful for ensuring contextual continuity and accuracy in text processing by allowing overlaps between segments, which helps prevent loss of contextual information at chunk boundaries.

location

 NA Yes

Location of the object store. The files in this location must be text files, such as html and txt.

match_limit

 5 (default) No

Specifies the maximum number of results to return in a vector search query, controlling the output size and improving the efficiency of data retrieval operations.

object_storage_credential_name

 NA Yes

Specifies the name of the credentials for accessing an object storage.

pipeline_name

 <vector_index_name>$VECPIPELINE No

Specifies the name of the vector index data load pipeline. This attribute is automatically set for the vector index, you cannot specify or modify. The pipeline name can be used to monitor the vector index data load using Monitor and Troubleshoot Pipelines.

profile_name

 NA Yes

Name of the AI profile which is used for embedding source data and user prompts.

refresh_rate

 1440 minutes (default) No

Interval of updating data in the vector store. The unit is minutes.

similarity_threshold

 0 (default) No

Defines the minimum level of similarity required for two items to be considered a match, useful for filtering results in matching algorithms to ensure relevance.

vector_distance_metric
Valid values for Oracle 23ai:
  • EUCLIDEAN
  • L2_SQUARED (EUCLIDEAN_SQUARED)
  • COSINE (default)
  • DOT
  • MANHATTAN
  • HAMMING
 No

Specifies the type of distance calculation used to compare vectors in a database, determining how similarity between items is quantified.

vector_db_provider

oracle

 Yes

Specifies the provider name that manages and serves as the vector store.

vector_dimension

 NA No

Specifies the number of elements in each vector within the vector store, defining the size and structure of the data representation.

vector_table_name

<vector_index_name>$VECTAB (default)

No

Specifies the name of the table or collection to store vector embeddings and chunked data.
The following example demonstrates creating a vector index with OCI Generative AI vector store. 
BEGIN
       DBMS_CLOUD_AI.CREATE_VECTOR_INDEX(
         index_name  => 'MY_INDEX',
         attributes  => '{"vector_db_provider": "oracle",
                          "location": "https://swiftobjectstorage.us-phoenix-1.oraclecloud.com/v1/my_namespace/my_bucket/my_data_folder",
                          "object_storage_credential_name": "OCI_CRED",
                          "profile_name": "OPENAI_ORACLE",
                          "vector_dimension": 1024,
                          "vector_distance_metric": "cosine",
                          "chunk_overlap":128,
                          "chunk_size":1024
      }');
END;
/                                                                 
/