[[["易于理解","easyToUnderstand","thumb-up"],["解决了我的问题","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["很难理解","hardToUnderstand","thumb-down"],["信息或示例代码不正确","incorrectInformationOrSampleCode","thumb-down"],["没有我需要的信息/示例","missingTheInformationSamplesINeed","thumb-down"],["翻译问题","translationIssue","thumb-down"],["其他","otherDown","thumb-down"]],["最后更新时间 (UTC)：2025-08-28。"],[[["\u003cp\u003eThe \u003ccode\u003eINFORMATION_SCHEMA.PROJECT_OPTIONS_CHANGES\u003c/code\u003e view provides real-time metadata about BigQuery project configuration changes made after January 31, 2024.\u003c/p\u003e\n"],["\u003cp\u003eAccessing configuration details via this view requires the \u003ccode\u003ebigquery.config.update\u003c/code\u003e IAM permission at the project level.\u003c/p\u003e\n"],["\u003cp\u003eEach row in the view represents a configuration change, detailing the update time, the user who made the change, the updated options in JSON format, and the associated project ID and number.\u003c/p\u003e\n"],["\u003cp\u003eThis view retains data on running sessions and completed sessions within the past 180 days, and it must be queried with a region qualifier.\u003c/p\u003e\n"],["\u003cp\u003eThis feature is currently a Pre-GA feature meaning that it is available "as is" with limited support.\u003c/p\u003e\n"]]],[],null,["# PROJECT_OPTIONS_CHANGES view\n============================\n\n|\n| **Preview**\n|\n|\n| This feature is subject to the \"Pre-GA Offerings Terms\" in the General Service Terms section\n| of the [Service Specific Terms](/terms/service-terms#1).\n|\n| Pre-GA features are available \"as is\" and might have limited support.\n|\n| For more information, see the\n| [launch stage descriptions](/products#product-launch-stages).\n| **Note:** To get support or provide feedback for project-level configuration changes, contact [bq-project-config-service@google.com](mailto:bq-project-config-service@google.com).\n\nYou can query the `INFORMATION_SCHEMA.PROJECT_OPTIONS_CHANGES` view to retrieve\nreal-time metadata about BigQuery configuration changes of a project.\nThis view reflects project-level configuration changes\nmade after January 31, 2024.\n\nRequired permissions\n--------------------\n\nTo get the configuration, you need the `bigquery.config.update`\nIdentity and Access Management (IAM) permission at the project level. The predefined\nIAM role `roles/bigquery.admin` includes the permissions that you\nneed to create a configuration.\n\nFor more information about granular BigQuery permissions, see\n[roles and permissions](/bigquery/docs/access-control).\n\nSchema\n------\n\nWhen you query the `INFORMATION_SCHEMA.PROJECT_OPTIONS_CHANGES` view, the query\nresults contain one row for each configuration change in a project.\n\nThe `INFORMATION_SCHEMA.PROJECT_OPTIONS_CHANGES` view has the following schema:\n\nData retention\n--------------\n\nThis view contains sessions that are running and the history of sessions\ncompleted in the past 180 days.\n\nScope and syntax\n----------------\n\nQueries against this view must have a [region qualifier](/bigquery/docs/information-schema-intro#syntax).\n\nReplace the following:\n\n- \u003cvar translate=\"no\"\u003eREGION\u003c/var\u003e: any [dataset region name](/bigquery/docs/locations). For example, `US`, or `us-west2`.\n\n\u003cbr /\u003e\n\n| **Note:** To learn how to extract a JSON scalar value from the `updated_options` column and convert it to a SQL STRING value such as `JSON_VALUE()`, see [JSON functions](/bigquery/docs/reference/standard-sql/json_functions#categories).\n\nExamples\n--------\n\nThe following example retrieves all columns from the\n`INFORMATION_SCHEMA.PROJECT_OPTIONS_CHANGES` view. \n\n```googlesql\nSELECT\n *\nFROM\n `region-\u003cvar translate=\"no\"\u003eREGION\u003c/var\u003e`.INFORMATION_SCHEMA.PROJECT_OPTIONS_CHANGES;\n```\n| **Note:** `INFORMATION_SCHEMA` view names are case-sensitive.\n\nThe result is similar to the following:\n\n\u003cbr /\u003e\n\n```\n+----------------+------------+-------------------------+-----------------+------------------------------------------------------------------------------------------------------------------+\n| project_number | project_id | update_time | username | updated_options |\n|----------------|------------|-------------------------|-----------------|------------------------------------------------------------------------------------------------------------------|\n| 4471534625 | myproject1 | 2023-08-22 06:57:49 UTC | user1@gmail.com | {\"default_query_job_timeout_ms\":{\"new\":0,\"old\":1860369},\"default_time_zone\":{\"new\":\"America/New_York\",\"old\":\"\"}} |\n|----------------|------------|-------------------------|-----------------|------------------------------------------------------------------------------------------------------------------|\n| 5027725474 | myproject2 | 2022-08-01 00:00:00 UTC | user2@gmail.com | {\"default_interactive_query_queue_timeout_ms\":{\"new\":1860369,\"old\":1860008}} |\n+----------------+------------+-------------------------+-----------------+------------------------------------------------------------------------------------------------------------------+\n```\n\n\u003cbr /\u003e"]]
