replaceSomeIn函数接收一个函数,这个函数的输入为 scala.util.matching.Regex.Match,输出为 scala.Option,最后的结果是仅对返回为 Some 的数据进行替换,其他的不处理。下面就是替换某个字符串的前50个满足条件的字符,超过50的字符串即使匹配到也不替换,如下: scala> val expr = "e".r expr: scala.util.matchin...
scala> val jdbcDF = spark.read.format("jdbc").option("url","jdbc:mysql://192.168.134.133:3306/spark").option("dbtable","spark.userinfor").option("user","root").option("password","root").option("driver","com.mysql.jdbc.Driver").load() 1. 二、代码操作 Java代码示例: package Spark...
SPark based Array eXPLODER - relationalize any array values into separate rows jsonsparkarrayexplode UpdatedApr 24, 2017 Scala TubeFree for WP R.E. :: Proto / Damaged researchuwpreverse-engineeringrndexplodedecompw10me-junktubefree UpdatedOct 22, 2023 ...
We did not get any examples for this in web also. Or I could be missing something.. Could anyone please help in using explode method with nested array strucutre.. Thanks in advance.. I referrerd below API and github links https://spark.apache.org/docs/latest/api/scala/index.html#org....
spark = SparkSession.builder.appName('pyspark-by-examples').getOrCreate() arrayArrayData = [ ("James",[["Java","Scala","C++"],["Spark","Java"]]), ("Michael",[["Spark","Java","C++"],["Spark","Java"]]), ("Robert",[["CSharp","VB"],["Spark","Python"]]) ...
Could anyone please help in using explode method with nested array strucutre.. Thanks in advance.. I referrerd below API and github links https://spark.apache.org/docs/latest/api/scala/index.html#org.apache.spark.sql.DataFrame https://github.com/apache/spark/blob/master/sql/core/src/main/...
scala> textFile.first() // First item in this RDD res1: String = # Apache Spark 1. 2. 3. 4. 现在,让我们使用一个转换,我们将使用一个filter转换来返回一个拥有这个文件的项目的子集的新的RDD: scala> val linesWithSpark = textFile.filter(line => line.contains("Spark")) ...
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