package org.example.sql

import org.apache.spark.sql.SparkSession

object DataFrameSql {
  def main(args: Array[String]): Unit = {
    val spark = SparkSession.builder()
      .master("local[*]")
      .appName("DataFrameDemo")
      .getOrCreate()

    val dfSql = spark.read
      .format("jdbc")
      .option("url", "jdbc:mysql://192.168.48.10:3306/gmall")
      .option("dbtable", "user_info")
      .option("user", "root")
      .option("password", "root123456")
      .load()

    println("============show============")
    dfSql.show()

    println("============sql============")
    dfSql.createTempView("user_info")
    spark.sql(
      """
        |select
        |login_name
        |,name
        |,user_level
        |from user_info
        |""".stripMargin).show()

  }
}