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程式碼範例
Go
如要瞭解如何安裝及使用 Bigtable 的用戶端程式庫,請參閱這篇文章。
如要向 Bigtable 進行驗證,請設定應用程式預設憑證。
詳情請參閱「為本機開發環境設定驗證」。
Java
如要瞭解如何安裝及使用 Bigtable 的用戶端程式庫,請參閱這篇文章。
如要向 Bigtable 進行驗證,請設定應用程式預設憑證。
詳情請參閱「為本機開發環境設定驗證」。
PHP
如要瞭解如何安裝及使用 Bigtable 的用戶端程式庫,請參閱這篇文章。
如要向 Bigtable 進行驗證,請設定應用程式預設憑證。
詳情請參閱「為本機開發環境設定驗證」。
Python
如要瞭解如何安裝及使用 Bigtable 的用戶端程式庫,請參閱這篇文章。
如要向 Bigtable 進行驗證,請設定應用程式預設憑證。
詳情請參閱「為本機開發環境設定驗證」。
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[[["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"]],[],[[["\u003cp\u003eThis content demonstrates how to perform a full table scan in Bigtable using Go, Java, PHP, and Python.\u003c/p\u003e\n"],["\u003cp\u003eThe examples provide code snippets that read and output all rows in a Bigtable table, showing data for each row key, family, qualifier, and value.\u003c/p\u003e\n"],["\u003cp\u003eTo use these code samples, it's necessary to first install the Bigtable client library and set up Application Default Credentials for authentication.\u003c/p\u003e\n"],["\u003cp\u003eAdditional resources include links to Bigtable client libraries documentation, authentication setup, and the Google Cloud sample browser for further code examples.\u003c/p\u003e\n"]]],[],null,["Perform a full table scan.\n\nExplore further\n\n\nFor detailed documentation that includes this code sample, see the following:\n\n- [Go hello world](/bigtable/docs/samples-go-hello)\n- [Java hello world](/bigtable/docs/samples-java-hello-world)\n- [PHP hello world](/bigtable/docs/samples-php-hello)\n\nCode sample \n\nGo\n\n\nTo learn how to install and use the client library for Bigtable, see\n[Bigtable client libraries](/bigtable/docs/reference/libraries).\n\n\nTo authenticate to Bigtable, set up Application Default Credentials.\nFor more information, see\n\n[Set up authentication for a local development environment](/docs/authentication/set-up-adc-local-dev-environment).\n\n log.Printf(\"Reading all greeting rows:\")\n err = tbl.ReadRows(ctx, bigtable.PrefixRange(columnName), func(row bigtable.Row) bool {\n \titem := row[columnFamilyName][0]\n \tlog.Printf(\"\\t%s = %s\\n\", item.Row, string(item.Value))\n \treturn true\n }, bigtable.RowFilter(bigtable.ColumnFilter(columnName)))\n\n if err = client.Close(); err != nil {\n \tlog.Fatalf(\"Could not close data operations client: %v\", err)\n }\n\nJava\n\n\nTo learn how to install and use the client library for Bigtable, see\n[Bigtable client libraries](/bigtable/docs/reference/libraries).\n\n\nTo authenticate to Bigtable, set up Application Default Credentials.\nFor more information, see\n\n[Set up authentication for a local development environment](/docs/authentication/set-up-adc-local-dev-environment).\n\n try {\n System.out.println(\"\\nReading the entire table\");\n Query query = Query.create(TableId.of(tableId));\n ServerStream\u003cRow\u003e rowStream = dataClient.readRows(query);\n List\u003cRow\u003e tableRows = new ArrayList\u003c\u003e();\n for (Row r : rowStream) {\n System.out.println(\"Row Key: \" + r.getKey().toStringUtf8());\n tableRows.add(r);\n for (RowCell cell : r.getCells()) {\n System.out.printf(\n \"Family: %s Qualifier: %s Value: %s%n\",\n cell.getFamily(), cell.getQualifier().toStringUtf8(), cell.getValue().toStringUtf8());\n }\n }\n return tableRows;\n } catch (NotFoundException e) {\n System.err.println(\"Failed to read a non-existent table: \" + e.getMessage());\n return null;\n }\n\nPHP\n\n\nTo learn how to install and use the client library for Bigtable, see\n[Bigtable client libraries](/bigtable/docs/reference/libraries).\n\n\nTo authenticate to Bigtable, set up Application Default Credentials.\nFor more information, see\n\n[Set up authentication for a local development environment](/docs/authentication/set-up-adc-local-dev-environment).\n\n $columnFamilyId = 'cf1';\n $column = 'greeting';\n printf('Scanning for all greetings:' . PHP_EOL);\n $partialRows = $table-\u003ereadRows([])-\u003ereadAll();\n foreach ($partialRows as $row) {\n printf('%s' . PHP_EOL, $row[$columnFamilyId][$column][0]['value']);\n }\n\nPython\n\n\nTo learn how to install and use the client library for Bigtable, see\n[Bigtable client libraries](/bigtable/docs/reference/libraries).\n\n\nTo authenticate to Bigtable, set up Application Default Credentials.\nFor more information, see\n\n[Set up authentication for a local development environment](/docs/authentication/set-up-adc-local-dev-environment).\n\n print(\"Scanning for all greetings:\")\n partial_rows = table.read_rows(filter_=row_filter)\n\n for row in partial_rows:\n cell = row.cells[column_family_id][column][0]\n print(cell.value.decode(\"utf-8\"))\n\nWhat's next\n\n\nTo search and filter code samples for other Google Cloud products, see the\n[Google Cloud sample browser](/docs/samples?product=bigtable)."]]