dlphay的博客

我们在MySQL和Spark-SQL使用过程中，常用的DQL如下。// 查询SELECT xx FROM table;SELECT * FROM table;SELECT DISTINCT xx FROM table;// + - * / 运算SELECT xx*1.5 FROM table;SELECT xx+xx FROM table;// 条件查询SELECT xx...

使用Pycharm来实现Spark-SQL。from pyspark import Rowfrom pyspark.sql import SparkSessionfrom pyspark.sql.types import StructField, StringType, StructTypeif __name__ == "__main__": spark = SparkSes...