spark sql时间转换成字符串
时间: 2023-12-01 15:47:19 浏览: 162
在Spark SQL中,可以使用`from_unixtime`函数将时间戳转换为字符串。例如,如果你有一个名为`time`的列,你可以使用以下代码将其转换为字符串形式:
```scala
import org.apache.spark.sql.functions._
val df = spark.sql("SELECT time FROM your_table")
val df2 = df.withColumn("time_str", from_unixtime(col("time")))
```
这将在`df2`中添加一个名为`time_str`的新列,其中包含将时间戳转换为字符串后的结果。你可以根据需要调整列名和表名。\[2\]
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