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自定义UDF函数 package com.ws.spark import org.apache.spark.sql.DataFrame import org.apache.spark.sql.hive.HiveContext import org.apache.spark.{SparkConf, SparkContext} object MyUDF{ def main(args: Arr...

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创建表 hive> CREATE TABLE t_hive (age int, num int, size int) ROW FORMAT DELIMITED FIELDS TERMINATED BY ‘,’; 导入本地数据到hive hive>LOAD DATA LOCAL INPATH ‘/root/test’ OVERWRITE INTO TABLE t_hive ...

idea下编码,测试连接hive,代码如下: package com.ws.spark import org.apache.spark.sql.DataFrame import org.apache.spark.sql.hive.HiveContext import org.apache.spark.{SparkConf, SparkContext} object RangeTest { ...

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