| const e=JSON.parse('{"key":"v-5781a40e","path":"/zh/UserGuide/Master/stage/Query-Data/Fill.html","title":"结果集补空值","lang":"zh-CN","frontmatter":{"description":"功能介绍 当执行一些数据查询时，结果集的某行某列可能没有数据，则此位置结果为空，但这种空值不利于进行数据可视化展示和分析，需要对空值进行填充。 在 IoTDB 中，用户可以使用 FILL 子句指定数据缺失情况下的填充模式，允许用户按照特定的方法对任何查询的结果集填充空值，如取前一个不为空的值、线性插值等。 语法定义 FILL 子句的语法定义如下： 注意...","head":[["link",{"rel":"alternate","hreflang":"en-us","href":"https://iotdb.apache.org/UserGuide/Master/stage/Query-Data/Fill.html"}],["meta",{"property":"og:url","content":"https://iotdb.apache.org/zh/UserGuide/Master/stage/Query-Data/Fill.html"}],["meta",{"property":"og:site_name","content":"IoTDB Website"}],["meta",{"property":"og:title","content":"结果集补空值"}],["meta",{"property":"og:description","content":"功能介绍 当执行一些数据查询时，结果集的某行某列可能没有数据，则此位置结果为空，但这种空值不利于进行数据可视化展示和分析，需要对空值进行填充。 在 IoTDB 中，用户可以使用 FILL 子句指定数据缺失情况下的填充模式，允许用户按照特定的方法对任何查询的结果集填充空值，如取前一个不为空的值、线性插值等。 语法定义 FILL 子句的语法定义如下： 注意..."}],["meta",{"property":"og:type","content":"article"}],["meta",{"property":"og:locale","content":"zh-CN"}],["meta",{"property":"og:locale:alternate","content":"en-US"}],["meta",{"property":"og:updated_time","content":"2023-10-25T07:33:02.000Z"}],["meta",{"property":"article:modified_time","content":"2023-10-25T07:33:02.000Z"}],["script",{"type":"application/ld+json"},"{\\"@context\\":\\"https://schema.org\\",\\"@type\\":\\"Article\\",\\"headline\\":\\"结果集补空值\\",\\"image\\":[\\"\\"],\\"dateModified\\":\\"2023-10-25T07:33:02.000Z\\",\\"author\\":[]}"]]},"headers":[{"level":2,"title":"功能介绍","slug":"功能介绍","link":"#功能介绍","children":[]},{"level":2,"title":"语法定义","slug":"语法定义","link":"#语法定义","children":[]},{"level":2,"title":"填充方式","slug":"填充方式","link":"#填充方式","children":[{"level":3,"title":"PREVIOUS 填充","slug":"previous-填充","link":"#previous-填充","children":[]},{"level":3,"title":"LINEAR 填充","slug":"linear-填充","link":"#linear-填充","children":[]},{"level":3,"title":"常量填充","slug":"常量填充","link":"#常量填充","children":[]}]}],"git":{"createdTime":1698219182000,"updatedTime":1698219182000,"contributors":[{"name":"dependabot[bot]","email":"49699333+dependabot[bot]@users.noreply.github.com","commits":1}]},"readingTime":{"minutes":4.26,"words":1277},"filePathRelative":"zh/UserGuide/Master/stage/Query-Data/Fill.md","localizedDate":"2023年10月25日","autoDesc":true}');export{e as data}; |