天蓝色流分析同时结合数据

Posted 2023-05-08

【中文标题】天蓝色流分析同时结合数据

【英文标题】：azure stream analytics combine data with same time

【发布时间】：2017-05-18 07:02:17

【问题描述】：

我正在使用 azure 流分析查询语言，但我在数据准备方面遇到了一些问题。this is my current output

但我想同时合并数据 例如在第一行 "46027020", "#A83","2017-05-18T08:47:26.5620000Z" 带有标题“IGEF_NR”、“Decklack”和“时间” 第二行："46027070", "#475","2017-05-18T08:49:20.1750000Z"

【参考方案1】：

您需要将过滤器子查询拆分为“IGEF_NR”和“DECKLACK”，然后将两者连接起来。如下所示：

filter_IGEF AS
(
  SELECT sub_id, value,time
  FROM stringfilter
  WHERE sub_id = 'IGEF_Nr'
 ),

 filter_Decklack AS
(
  SELECT sub_id, value,time
  FROM stringfilter
  WHERE sub_id = 'Decklack'
 ),

 joined_value AS
 (
   SELECT
     i.value AS IGEF_Nr,
     d.value AS Decklack,
     i.time as time
   FROM filter_IGEF i
   JOIN filter_Decklack d
   ON i.time = d.time
   AND DATEDIFF(second, i, d) BETWEEN 0 AND 5
 )

 SELECT IGEF_Nr, Decklack, time
 INTO csv
 FROM joined_value