[[["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):2025-09-04。"],[[["\u003cp\u003eThis guide explains how to fill null or empty cells in a column within the Cloud Data Fusion Wrangler workspace.\u003c/p\u003e\n"],["\u003cp\u003eYou can specify a value to replace null or empty cells in a selected column by using the "Fill null or empty cells" option.\u003c/p\u003e\n"],["\u003cp\u003eApplying this action updates the sample dataset and adds a \u003ccode\u003efill-null-or-empty\u003c/code\u003e directive to the Wrangler recipe.\u003c/p\u003e\n"],["\u003cp\u003eThe specified value will be applied to all null or empty cells in the selected column when the data pipeline is executed.\u003c/p\u003e\n"]]],[],null,["# Fill null or empty cells\n\nThis page explains how to add values to null and empty cells when you prepare\ndata in the Wrangler workspace of the Cloud Data Fusion Studio. If you have a\ncolumn that contains null or empty cells, you can specify a value to add to\nthose cells.\n\nTo specify a value to add to null or empty cells in a column, follow these\nsteps:\n\n1. [Go to Wrangler workspace in Cloud Data Fusion](/data-fusion/docs/concepts/wrangler-overview#navigate-to-wrangler).\n2. On the **Data** tab, go to a column name and click the arrow_drop_down expander arrow.\n3. Select **Fill null or empty cells**.\n4. Enter the value to add to each null or empty cell in the column.\n5. Click **Apply**.\n\nWrangler fills each null or empty cell with the new value and adds the\n`fill-null-or-empty` directive to the recipe. When you run the data pipeline,\nthe transformation is applied to all values in the column.\n\nFor example, in a column called `Age`, you replace the empty and null values\nwith the string `N/A`using the preceding steps. Wrangler updates the sample\ndataset and adds the following directive to the recipe:\n`fill-null-or-empty :Age 'N/A'`.\n\nWhat's next\n-----------\n\n- Learn more about [Wrangler directives](/data-fusion/docs/concepts/wrangler-overview#apply_directives)."]]