sparkSQL用JDBC连接Oracle写数据

主要是需要用Oracle的序列,而sparkSQL的jdbc是没有函数去实现的,所以只有用Oracle本身的表名.nextval来实现
核心代码部分:

object Grade {
  Class.forName("oracle.jdbc.driver.OracleDriver")
  val connection: Connection = DriverManager.getConnection(sqlUrl, user, password)
  // SQL请换成你自己的
  val prepareStatement: PreparedStatement = connection.prepareStatement("""insert into GIS_SCORERECORD(ID,......) values(SEQ_GIS_SCORERECORD.nextval,?.....)""")
  var num = 0 
  def main(args: Array[String]): Unit = {
  spark.sql("""你的SQL""").rdd.collect.foreach { rows => { prepareStatement.setBigDecimal(1, rows.getDecimal(0))
      prepareStatement.setBigDecimal(2, rows.getDecimal(1))
      prepareStatement.setLong(3, rows.getLong(2)) //
      prepareStatement.setBigDecimal(4, rows.getDecimal(3))
      prepareStatement.setBigDecimal(5, rows.getDecimal(4)) //
      prepareStatement.setBigDecimal(6, rows.getDecimal(5))
      prepareStatement.setTimestamp(7, rows.getTimestamp(6))
      prepareStatement.addBatch()
      num += 1
      if (num % 500 == 0) {
        prepareStatement.executeBatch()
      }
    }
    }
	
	prepareStatement.executeBatch()
    prepareStatement.close()
    connection.close()
    spark.stop()
  }
}

来源：CSDN

作者：没有合适的昵称

链接：https://blog.csdn.net/weixin_42411818/article/details/104423042