Pregunta de entrevista de NTT DATA
1. Data frames vs Data set vs RDD 2. How to combine 3 Data frames 3. How to add extra column to Data frames 4. Hash map internal working 5. Scala case classes 6. Option and some 7. pattern macthing
1. Data frames vs Data set vs RDD 2. How to combine 3 Data frames 3. How to add extra column to Data frames 4. Hash map internal working 5. Scala case classes 6. Option and some 7. pattern macthing