Writers/Fellow
dudaka
Former Data Engineer
Written at Dwarves
Latest- 12 Dec 2022Hive window and analytic functions: a 10-day moving average example
Learn how to use Hive window and analytical functions to calculate complex metrics like a 10-day moving average on stock data with easy-to-understand SQL examples and syntax.
- 10 Dec 2022Buckets in Apache Hive: fewer tiny files and efficient sampling
Learn how Apache Hive buckets solve issues with dynamic partitions by reducing tiny files, enabling efficient sampling, and improving query performance through bucketing and partitioning techniques.
- 2 Dec 2022Apache Hive partitions: static and dynamic partitioning for faster queries
Learn how Hive partitions and dynamic partitions optimize query performance by targeting specific data subsets, reducing scan times, and efficiently managing large datasets for faster Hive queries.
All notes
14- 12 Dec 2022Hive window and analytic functions: a 10-day moving average exampleResearch notesData
- 10 Dec 2022Buckets in Apache Hive: fewer tiny files and efficient samplingResearch notesData
- 2 Dec 2022Apache Hive partitions: static and dynamic partitioning for faster queriesResearch notesData
- 23 Nov 2022Hive ORDER BY, SORT BY, DISTRIBUTE BY and CLUSTER BY comparedResearch notesData
- 16 Nov 2022Hive managed tables versus external tablesResearch notesData
- 11 Nov 2022Behind a Hive table: structure, storage formats and SerDeResearch notesData
- 10 Nov 2022An introduction to Apache Hive: SQL queries on Hadoop dataResearch notesData
- 24 Oct 2022¶ MapReduceResearch notesData
- 24 Oct 2022MapReduce components, part 1: input split, map and reduceResearch notesData
- 24 Oct 2022MapReduce components, part 2: the shuffle phase and combinerResearch notesData
- 15 Jun 2022Hadoop distributed file system, part 1: why HDFS and how blocks workResearch notesData
- 15 Jun 2022Hadoop distributed file system, part 2: working with HDFS, reads and writesResearch notesData
- 12 Jun 2022Apache Hadoop and big data, part 1: what big data is, why Hadoop, and the problemResearch notesData
- 12 Jun 2022Apache Hadoop and big data, part 2: execution time on one machine and the history of HadoopResearch notesData