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您可以透過在 GAQL 查詢中選取 campaign_budget 的指標欄位，擷取廣告活動預算的成效統計資料。根據預設，所有統計資料都會在預算層級匯總，每個預算各佔一行。如果使用區隔欄位，每個預算可能會有多個資料列。詳情請參閱區隔。
下列 GAQL 查詢會擷取單一預算的轉換成效，並依 ID 進行篩選：
SELECT
segments.conversion_action,
metrics.value_per_conversion
FROM campaign_budget
WHERE campaign_budget.id = campaign_budget_id
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上次更新時間：2025-08-26 (世界標準時間)。
[null,null,["上次更新時間：2025-08-26 (世界標準時間)。"],[[["\u003cp\u003eCampaign budget performance statistics are retrieved using \u003ccode\u003ecampaign_budget\u003c/code\u003e metric fields in GAQL queries, aggregated by budget.\u003c/p\u003e\n"],["\u003cp\u003eSegmentation can result in multiple rows per budget, providing more granular performance data.\u003c/p\u003e\n"],["\u003cp\u003eThe provided example GAQL query demonstrates retrieving conversion performance for a specific campaign budget using its ID.\u003c/p\u003e\n"]]],[],null,["# Track Performance\n\nYou can retrieve the performance statistics for your campaign budgets by\nselecting metric fields of [`campaign_budget`](/google-ads/api/fields/v21/campaign_budget) in a\nGAQL query. By default all statistics are aggregated at the budget level, one\nrow per budget. If segment fields are used, you may get more than one row per\nbudget. See [segmentation](/google-ads/api/docs/concepts/retrieving-objects#segmentation) for\ndetails.\n\nThe following GAQL query retrieves conversion performance of a single budget,\nfiltering on its ID: \n\n```sql\nSELECT\n segments.conversion_action,\n metrics.value_per_conversion\nFROM campaign_budget\nWHERE campaign_budget.id = campaign_budget_id\n```"]]
