[[["容易理解","easyToUnderstand","thumb-up"],["確實解決了我的問題","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["難以理解","hardToUnderstand","thumb-down"],["資訊或程式碼範例有誤","incorrectInformationOrSampleCode","thumb-down"],["缺少我需要的資訊/範例","missingTheInformationSamplesINeed","thumb-down"],["翻譯問題","translationIssue","thumb-down"],["其他","otherDown","thumb-down"]],["上次更新時間:2025-08-11 (世界標準時間)。"],[],[],null,["# Standard API parameters\n\nThe following query parameters can be used with all methods and all resources in the Cloud Spanner API.\n\nQuery parameters that apply to all Cloud Spanner API operations are documented at\n[System Parameters](https://cloud.google.com/apis/docs/system-parameters).\n\nPerformance tips\n----------------\n\nWe strongly recommend using the [client libraries](/spanner/docs/reference/libraries)\nfor workloads that involve relatively high queries per second, relatively small\nrequests or responses, and where you are concerned about latency or throughput.\nThe libraries have substantially lower overhead than REST or JSON because they\nare built on top of the [gRPC](https://grpc.io/)\ninterfaces. There are cases where using the REST API makes sense, and you want\nto optimize for fewer bytes transferred or smaller JSON responses."]]