Impala Export to CSV
Apache Impala is an open source massively parallel processing SQL query engine for data stored in a computer cluster running Apache Hadoop. In some cases, impala-shell is installed manually...
Monthly Archive: October 2019
Spark Structured Streaming and Streaming Queries
Structured streaming: Structured Streaming is a scalable and fault-tolerant stream processing engine built on the Spark SQL engine. You can express your streaming computation the same way you...
Add constant column in spark
If we want to add a column with default value then we can do in spark. In spark 2.2 there are two ways to add constant value in...
Salesforce connector in Spark
Salesforce is a customer relationship management solution that brings companies and customers together. It’s one integrated CRM platform that gives all your departments — including marketing, sales, commerce,...
