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Handle quota errors by calling ML.GENERATE_TEXT iteratively | BigQuery

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This tutorial shows you how to use the BigQuery bqutil.procedure.bqml_generate_text public stored procedure to iterate through calls to the ML.GENERATE_TEXT function. Calling the function iteratively lets you address any retryable errors that occur due to exceeding the quotas and limits that apply to the function.

To review the source code for the bqutil.procedure.bqml_generate_text stored procedure in GitHub, see bqml_generate_text.sqlx. For more information about the stored procedure parameters and usage, see the README file.

This tutorial guides you through the following tasks:

• Creating a remote model over a gemini-2.0-flash model.
• Iterating through calls to the ML.GENERATE_TEXT function, using the remote model and the bigquery-public-data.bbc_news.fulltext public data table with the bqutil.procedure.bqml_generate_text stored procedure.

To run this tutorial, you need the following Identity and Access Management (IAM) roles:

• Create and use BigQuery datasets, connections, and models: BigQuery Admin (roles/bigquery.admin).
• Grant permissions to the connection's service account: Project IAM Admin (roles/resourcemanager.projectIamAdmin).

These predefined roles contain the permissions required to perform the tasks in this document. To see the exact permissions that are required, expand the Required permissions section:

• Create a dataset: bigquery.datasets.create
• Create, delegate, and use a connection: bigquery.connections.*
• Set the default connection: bigquery.config.*
• Set service account permissions: resourcemanager.projects.getIamPolicy and resourcemanager.projects.setIamPolicy
• Create a model and run inference:
  • bigquery.jobs.create
  • bigquery.models.create
  • bigquery.models.getData
  • bigquery.models.updateData
  • bigquery.models.updateMetadata

You might also be able to get these permissions with custom roles or other predefined roles.

In this document, you use the following billable components of Google Cloud:

• BigQuery ML: You incur costs for the data that you process in BigQuery.
• Vertex AI: You incur costs for calls to the Vertex AI model.

To generate a cost estimate based on your projected usage, use the pricing calculator.

New Google Cloud users might be eligible for a

.

For more information about BigQuery pricing, see BigQuery pricing.

For more information about Vertex AI pricing, see Vertex AI pricing.

1. In the Google Cloud console, on the project selector page, select or create a Google Cloud project.

   Note: If you don't plan to keep the resources that you create in this procedure, create a project instead of selecting an existing project. After you finish these steps, you can delete the project, removing all resources associated with the project.

   Go to project selector

2. Verify that billing is enabled for your Google Cloud project.

3. Enable the BigQuery, BigQuery Connection, and Vertex AI APIs.

   Enable the APIs

Create a BigQuery dataset to store your models and sample data:

1. In the Google Cloud console, go to the BigQuery page.

   Go to the BigQuery page

2. In the Explorer pane, click your project name.

3. Click more_vert View actions > Create dataset.

4. On the Create dataset page, do the following:

   1. For Dataset ID, enter sample.

   2. For Location type, select Multi-region, and then select US (multiple regions in United States).

   3. Leave the remaining default settings as they are, and click Create dataset.

Create a remote model that represents a hosted Vertex AI gemini-2.0-flash model:

1. In the Google Cloud console, go to the BigQuery page.

   Go to BigQuery

2. In the query editor, run the following statement:

   CREATE OR REPLACE MODEL `sample.generate_text`
     REMOTE WITH CONNECTION DEFAULT
     OPTIONS (ENDPOINT = 'gemini-2.0-flash');

   The query takes several seconds to complete, after which the generate_text model appears in the sample dataset in the Explorer pane. Because the query uses a CREATE MODEL statement to create a model, there are no query results.

Run the bqutil.procedure.bqml_generate_text stored procedure, which iterates through calls to the ML.GENERATE_TEXT function using the sample.generate_text model and the bigquery-public-data.bbc_news.fulltext public data table:

1. In the Google Cloud console, go to the BigQuery page.

   Go to BigQuery

2. In the query editor, run the following statement:

   CALL `bqutil.procedure.bqml_generate_text`(
       "bigquery-public-data.bbc_news.fulltext",   -- source table
       "PROJECT_ID.sample.news_generated_text",  -- destination table
       "PROJECT_ID.sample.generate_text",        -- model
       "body",                                     -- content column
       ["filename"],                               -- key columns
       '{}'                                        -- optional arguments
   );

   Replace PROJECT_ID with the project ID of the project you are using for this tutorial.

   The stored procedure creates a sample.news_generated_text table to contain the output of the ML.GENERATE_TEXT function.

3. When the query is finished running, confirm that there are no rows in the sample.news_generated_text table that contain a retryable error. In the query editor, run the following statement:

   SELECT *
   FROM `sample.news_generated_text`
   WHERE ml_generate_text_status LIKE '%A retryable error occurred%';

   The query returns the message No data to display.

Caution: Deleting a project has the following effects:
• Everything in the project is deleted. If you used an existing project for the tasks in this document, when you delete it, you also delete any other work you've done in the project.
• Custom project IDs are lost. When you created this project, you might have created a custom project ID that you want to use in the future. To preserve the URLs that use the project ID, such as an appspot.com URL, delete selected resources inside the project instead of deleting the whole project.

If you plan to explore multiple architectures, tutorials, or quickstarts, reusing projects can help you avoid exceeding project quota limits.

1. In the Google Cloud console, go to the Manage resources page.

   Go to Manage resources

2. In the project list, select the project that you want to delete, and then click Delete.
3. In the dialog, type the project ID, and then click Shut down to delete the project.

Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.

Last updated 2025-08-14 UTC.

[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-14 UTC."],[[["This tutorial demonstrates how to use the `bqutil.procedure.bqml_generate_text` stored procedure to iteratively call the `ML.GENERATE_TEXT` function in BigQuery, which is useful for managing quota limits and retryable errors."],["The process involves creating a remote model over a `gemini-1.5-flash-002` model, establishing necessary connections and permissions, and then using the stored procedure to process data from a public dataset."],["Proper permissions, including `bigquery.datasets.create`, `bigquery.connections.create`, and `resourcemanager.projects.setIamPolicy`, are required for creating datasets, connections, and managing service accounts, with additional permissions necessary for model creation and inference."],["Utilizing the `bqutil.procedure.bqml_generate_text` stored procedure results in a table that contains the output of `ML.GENERATE_TEXT`, and this table can be queried to ensure no retryable errors occurred during processing."],["There are costs associated with using BigQuery ML and Vertex AI, and the tutorial provides direction on where to learn more about pricing and how to use the pricing calculator to generate estimates."]]],[]]

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