Trending questions in Apache Spark

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How to work with multidimensional arrays in Scala?

Hi, Here is an example you can follow: scala> ...READ MORE

Jul 31, 2019 in Apache Spark by Gitika
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347 views
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1 answer

How to create scala project in intellij?

You have to install Intellij with scala plugin. ...READ MORE

Jul 5, 2019 in Apache Spark by Jimmy
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error: reassingment to val

Hi, This error will only generate when you ...READ MORE

Jul 5, 2019 in Apache Spark by Gitika
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1,443 views
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How to fit multiple assignment statements into one statement in Scala?

Hi, You can assign a Tuple to a ...READ MORE

Jul 29, 2019 in Apache Spark by Gitika
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362 views
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what is an anonymous function Scala?

Hi, An anonymous function in Scala is a ...READ MORE

Jul 29, 2019 in Apache Spark by Gitika
• 65,850 points
361 views
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What is 'TRAITS' in Scala

Hi, Traits are basically Scala's workaround for the ...READ MORE

Jul 31, 2019 in Apache Spark by Gitika
• 65,850 points
265 views
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1 answer

How 'Scala Higher Order function' works in Scala?

Hey, Scala allows the definition of a higher-order function. These ...READ MORE

Jul 31, 2019 in Apache Spark by Gitika
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292 views
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1 answer

What is Hive on Spark?

Hi, Hive contains significant support for Apache Spark, ...READ MORE

Aug 2, 2019 in Apache Spark by Gitika
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174 views
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1 answer

What is Map and flatMap in Spark?

Hi, The map is a specific line or ...READ MORE

Jul 3, 2019 in Apache Spark by Gitika
• 65,850 points
1,445 views
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1 answer

How to format a string in Scala?

Hey, To format a string, use the .format ...READ MORE

Jul 31, 2019 in Apache Spark by Gitika
• 65,850 points
254 views
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How the if-else statement is different for Scala and Java?

Hey, There is one main difference. This statement ...READ MORE

Jul 29, 2019 in Apache Spark by Gitika
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303 views
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Scala: when to use x(2) and x._2?

In the above statement, x(2) is specifying an array ...READ MORE

Jul 22, 2019 in Apache Spark by Yogi
594 views
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How shallow copy carry out using Scala?

Hey, Scala uses the method copy() to carry ...READ MORE

Aug 1, 2019 in Apache Spark by Gitika
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201 views
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How to concatinating Arrays in scala?

Hey, We can append a Scala array to ...READ MORE

Jul 25, 2019 in Apache Spark by Gitika
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456 views
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Different types of identifiers in Scala?

Hey, We have four kinds of identifiers in ...READ MORE

Jul 26, 2019 in Apache Spark by Gitika
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410 views
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How to print string text in scala?

Hi, You can see this example to see ...READ MORE

Jul 5, 2019 in Apache Spark by Gitika
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1,313 views
0 votes
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How to search for a Key in a Scala Map?

Hey, The Map.contains() method will tell you if ...READ MORE

Jul 29, 2019 in Apache Spark by Gitika
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268 views
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1 answer

How to use nested function in Scala?

Hey, With Scala, we can define a Scala ...READ MORE

Jul 26, 2019 in Apache Spark by Gitika
• 65,850 points
375 views
0 votes
1 answer

How to declare sets with value in Scala?

Hey, You can follow this code: scala> var s=Set(1,4,4,3) s: ...READ MORE

Jul 30, 2019 in Apache Spark by Gitika
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196 views
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0 answers

How to define SparkConf?

Can anyone explain how to define SparkConf? READ MORE

Aug 1, 2019 in Apache Spark by Danish
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What is a lens in Scala?

Hi, A lens is an abstraction from functional ...READ MORE

Jul 26, 2019 in Apache Spark by Gitika
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356 views
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1 answer

What is Spark Driver?

Hi, Spark Driver is the program that runs ...READ MORE

Jul 5, 2019 in Apache Spark by Gitika
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1,268 views
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1 answer

What is the work of Yield Keyword in Scala?

Hey, Used with a loop, yield produces a value for ...READ MORE

Jul 26, 2019 in Apache Spark by Gitika
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341 views
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1 answer

What is function currying in Scala?

Hi, With Scala Currying, we can take a ...READ MORE

Jul 26, 2019 in Apache Spark by Gitika
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335 views
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1 answer

How to use Scala anonymous functions and why do we use it?

Hi, Anonymous functions in Scala is the lightweight ...READ MORE

Jul 26, 2019 in Apache Spark by Gitika
• 65,850 points
317 views
0 votes
1 answer

Pyspark is taking default path

The HDFS path for MyLab is /user/edureka_id. ...READ MORE

Jul 16, 2019 in Apache Spark by Khushi
754 views
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1 answer

Consider for-comprehensions in Scala. What are they syntactic sugars for?

Hi, A for-comprehension is one way to carry ...READ MORE

Jul 29, 2019 in Apache Spark by Gitika
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172 views
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1 answer

What is Piping in Spark?

Hi, Spark provides a pipe() method on RDDs. ...READ MORE

Jul 3, 2019 in Apache Spark by Gitika
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1,299 views
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What is tail-recursion in Scala?

Hey, Recursion is when a function makes a ...READ MORE

Jul 26, 2019 in Apache Spark by Gitika
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283 views
+1 vote
2 answers

How can I convert Spark Dataframe to Spark RDD?

Assuming your RDD[row] is called rdd, you ...READ MORE

Jul 9, 2018 in Apache Spark by zombie
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16,821 views
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1 answer

What is recursion in Scala function? How does it works?

Hey, A Scala function involves recursion when it ...READ MORE

Jul 25, 2019 in Apache Spark by Gitika
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326 views
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Which Scala library is used for functional programming?

Hi, Scala library has purely functional data structures ...READ MORE

Jul 24, 2019 in Apache Spark by Gitika
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355 views
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How to create Scala function using "Def" keyword?

Hi, To create a Scala function, we use ...READ MORE

Jul 25, 2019 in Apache Spark by Gitika
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309 views
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Query regarding Operator Overloading in Scala

All prefix operators' symbols are predefined: +, -, ...READ MORE

Jul 10, 2019 in Apache Spark by Karan
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What is exception propagation in Scala?

Hi, When a function experiences an exception, it ...READ MORE

Jul 25, 2019 in Apache Spark by Gitika
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306 views
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1 answer

What is “Unit” and “()” in Scala?

Hey, Unit is a subtype of scala.anyval and ...READ MORE

Jul 24, 2019 in Apache Spark by Gitika
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325 views
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1 answer

How does Closure function works in Scala?

Hi, A closure in Scala is a function ...READ MORE

Jul 26, 2019 in Apache Spark by Gitika
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211 views
0 votes
1 answer

Load CSV file data inot MySQL

If you are trying to load file ...READ MORE

Jul 25, 2019 in Apache Spark by Sita
247 views
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1 answer

How to declare Scala array?

Hi, We can declare Scala arrays in two ...READ MORE

Jul 25, 2019 in Apache Spark by Gitika
• 65,850 points
242 views
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1 answer

What is BitSet in Scala?

Hey, A BitSet is a set of non-negative ...READ MORE

Jul 25, 2019 in Apache Spark by Gitika
• 65,850 points
240 views
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1 answer

What is Options in Scala?

Hey, A Scala Option is a kind of ...READ MORE

Jul 26, 2019 in Apache Spark by Gitika
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189 views
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0 answers

Load data to mysql from local

I'm trying to load data to mysql ...READ MORE

Jul 23, 2019 in Apache Spark by Yogi
370 views
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What is the advantage of having immutability in design for Scala programming language?

Hi, Scala uses immutability by default in most ...READ MORE

Jul 24, 2019 in Apache Spark by Gitika
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257 views
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Why do we need App in Scala?

Hey, The app is a helper class that ...READ MORE

Jul 24, 2019 in Apache Spark by Gitika
• 65,850 points
256 views
0 votes
1 answer

How to create Scala Array with Range?

Hey, The range() method will give us integers ...READ MORE

Jul 25, 2019 in Apache Spark by Gitika
• 65,850 points
211 views
0 votes
1 answer

What is Streams in Scala?

Hi, A stream is a lazy list as ...READ MORE

Jul 25, 2019 in Apache Spark by Gitika
• 65,850 points
199 views
0 votes
1 answer

How to process an Array in Scala?

Hi, We can use loop control structures to ...READ MORE

Jul 25, 2019 in Apache Spark by Gitika
• 65,850 points
185 views
0 votes
1 answer

Which syntax to use to take the sum of list of collection in scala?

Hi, You can see this example to get ...READ MORE

Jul 5, 2019 in Apache Spark by Gitika
• 65,850 points
1,031 views
0 votes
1 answer

How is Val different from var in Scala?

Hey, In this language, val is a value and var is ...READ MORE

Jul 24, 2019 in Apache Spark by Gitika
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209 views
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1 answer

At which point of time Scala will take default arguments?

Hi, If we omit an argument in a ...READ MORE

Jul 25, 2019 in Apache Spark by Gitika
• 65,850 points
169 views