I have Flat File1 (F1) with these columns - key1, col1, col2 Flat File2 (F2) with these columns - key2, col1, col2 and one table (T1) with these colum ...

How to join three heterogeneous sources using single joiner sources? Maybe three flat files, references three different relational databases (Oracle, ...

I am getting below error if I use agg() before join. at org.apache.spark.sql.execution.streaming.StreamExecution.org$apache$spark$sql$execution ...

The code: I'm trying to accomplish joining an array of strings with a separator, and the option to ignore an argument if desired. However I'm com ...

What is author's purpose? I guess he wants to make use of the array generated by compiler, rather than new an ArrayList. But still a confusing poi ...

I have an expression transformation from which I am passing the data to two different transformations. Later in the downstream of these parallel flo ...

I have a list of strings, e.g. days of the week. And I'd like to join them on comma, with "and" before the last element. E.g: "I'm available on Tue, W ...

Is it possible to collect Strings over collection while grouping? That's how it works in Java 8: I'm curious, is there concise way to do it in Goog ...

I want to iterate through an array and only add the string to the new string if certain conditions are matched, and then seperate with a comma. IF I c ...

If we use Joiner , then it is taking to much time. We have table A and Flat file B. A table has following fields Name , DEPT, SALARY. File B has follo ...

I have a master table with one record: and detail table with 4 records: My join condition is employee Id = employee Id1 with normal join type. ...

Let's say I have this class: Now, in my test method, I am trying something like: The String, I want to get back is something like: How can I ...

I have been looking for a way in which I can map two split files into an online player. For example if I have .mp4.001 file and .mp4.002 file in one f ...

I have the following code to to run Joiner to concat keys. However, they show up out of order. output: This should really be second|3rd group| ...