spark sql, 通过spark处理公交大数据。(spark handle bus data to collect bus speed and so on.)

javascr ipt学习教程,系统的Javascr ipt+jQuery网页前端教程,0基础到高级,大量实战案例.名师教学,课程系统权威,循序渐进,适合所有学员,快速掌握Javascr ipt+jQuery前端技能.(Javascr ipt learning tutorial, Javascr ipt+jQuery webpage front-end tutorial system, 0 basic to advanced, a lot of practical cases. Famous t

spark大数据，这是一本介绍spark相关知识的好书籍，希望大家喜欢！(Apache Spark is a fast and general-purpose cluster computing system. It provides high-level APIs in Java, Scala, Python and R, and an optimized engine that supports general execution graphs. It also supports a ric

在ABAP编程时，很大的工作量是查找模块中使用的是哪个数据表的哪个字段，可以通过帮助直接查找表和字段，结构通过SQL跟踪（ST05）(In ABAP programming, a great deal of work is to find which field in which data table is used in the module, by helping to find the table and field directly, the structure is tracked b