在本集中，我们将探讨 Google Ads 查询语言 (GAQL) 中的字段兼容性，并说明某些细分、指标和资源可以或不可以出现在同一 GAQL 查询中。本集内容基于 GAQL 播放列表中先前的几集内容，演示了如何使用 GoogleAdsFieldService 确定哪些字段可相互选择。 然后，我们会将注意力转到 Google Ads 查询构建器（Google Ads API 文档网站中基于浏览器的交互式工具），并介绍如何使用此工具轻松确定字段兼容性和构建 GAQL 查询。
GAQL 查询验证：字段兼容性
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最后更新时间 (UTC)：2025-08-21。
[null,null,["最后更新时间 (UTC)：2025-08-21。"],[[["\u003cp\u003eThis episode focuses on understanding field compatibility within Google Ads Query Language (GAQL) queries, explaining why some segments, metrics, and resources can't be combined.\u003c/p\u003e\n"],["\u003cp\u003eIt builds on previous GAQL episodes and shows how to leverage the GoogleAdsFieldService to identify compatible fields for queries.\u003c/p\u003e\n"],["\u003cp\u003eThe episode also introduces the Google Ads Query Builder, a tool for easily checking field compatibility and constructing GAQL queries within the Google Ads API documentation.\u003c/p\u003e\n"]]],[],null,["# GAQL Query Validation: Field Compatibility\n\nIn this episode, we'll explore field compatibility in the Google Ads Query\nLanguage (GAQL) and explain why certain segments, metrics, and resources can or\ncannot be present in the same GAQL query. This episode builds upon prior\nepisodes in the GAQL playlist to demonstrate how to use the\nGoogleAdsFieldService to determine which fields are selectable with each other.\nWe'll then flip our attention to the Google Ads Query Builder, an interactive,\nbrowser-based tool in the Google Ads API documentation site, and explain how to\nuse this tool to easily determine field compatibility and build GAQL queries.\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e"]]