Blog Articles

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Data Warehouse Series — Measures & Attributes Part II
Author: Subham Khandelwal
Published: 2023-01-30 15:30:09
Last Updated: 2023-01-30 15:30:09
Published on: Medium
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Data Warehouse Series — Measures & Attributes Part I
Author: Subham Khandelwal
Published: 2023-01-30 15:27:07
Last Updated: 2023-01-30 15:27:07
Published on: Medium
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PySpark — Connect AWS S3
Author: Subham Khandelwal
Published: 2023-01-28 10:52:25
Last Updated: 2023-01-28 10:52:25
Published on: Medium
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Data Warehouse Series — ETL vs ELT and Data Loading Strategies
Author: Subham Khandelwal
Published: 2023-01-28 05:30:23
Last Updated: 2023-01-28 05:30:23
Published on: Medium
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Data Warehouse Series — OLAP Systems
Author: Subham Khandelwal
Published: 2023-01-28 05:25:17
Last Updated: 2023-01-28 05:25:17
Published on: Medium
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Data Warehouse Series — Data Lake vs DW and OLTP Systems
Author: Subham Khandelwal
Published: 2023-01-23 18:41:02
Last Updated: 2023-01-23 18:41:02
Published on: Medium
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EaseWithData — Data Warehouse Series
Author: Subham Khandelwal
Published: 2023-01-18 07:03:39
Last Updated: 2023-01-30 15:31:17
Published on: Medium
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Data Warehouse Series — Introduction to Data Warehouse
Author: Subham Khandelwal
Published: 2023-01-18 07:02:16
Last Updated: 2023-01-18 07:06:56
Published on: Medium
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PySpark — Structured Streaming Read from Kafka
Author: Subham Khandelwal
Published: 2023-01-09 14:36:13
Last Updated: 2023-01-09 14:36:13
Published on: Medium
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PySpark — Structured Streaming Read from Files
Author: Subham Khandelwal
Published: 2023-01-05 09:35:32
Last Updated: 2023-01-05 09:35:32
Published on: Medium
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PySpark — Structured Streaming Read from Sockets
Author: Subham Khandelwal
Published: 2023-01-04 09:21:00
Last Updated: 2023-01-04 09:21:00
Published on: Medium
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PySpark — Connect Azure ADLS Gen 2
Author: Subham Khandelwal
Published: 2022-12-18 09:20:13
Last Updated: 2022-12-18 09:20:13
Published on: Medium
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PySpark — Delta Lake Integration using Manifest
Author: Subham Khandelwal
Published: 2022-11-27 14:33:42
Last Updated: 2022-11-27 14:33:42
Published on: Medium
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PySpark — Delta Lake Column Mapping
Author: Subham Khandelwal
Published: 2022-11-19 07:47:52
Last Updated: 2022-11-19 07:47:52
Published on: Medium
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PySpark — Setup Delta Lake
Author: Subham Khandelwal
Published: 2022-11-14 11:26:36
Last Updated: 2022-11-14 11:26:36
Published on: Medium
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PySpark — Implementing Persisting Metastore
Author: Subham Khandelwal
Published: 2022-11-11 08:54:34
Last Updated: 2022-11-11 08:54:34
Published on: Medium
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PySpark — Upsert or SCD1 with Dynamic Overwrite
Author: Subham Khandelwal
Published: 2022-11-04 10:46:59
Last Updated: 2022-11-04 10:46:59
Published on: Medium
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PySpark — Dynamic Partition Overwrite
Author: Subham Khandelwal
Published: 2022-11-02 10:46:47
Last Updated: 2022-11-02 10:46:47
Published on: Medium
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PySpark - Fix Column Header with Spaces
Author: Subham Khandelwal
Published: 2022-10-31 11:24:31
Last Updated: 2022-10-31 11:24:31
Published on: Medium
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PySpark - The Factor of Cores
Author: Subham Khandelwal
Published: 2022-10-28 10:00:51
Last Updated: 2022-10-28 10:00:51
Published on: Medium
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PySpark - Optimize Data Scanning exponentially
Author: Subham Khandelwal
Published: 2022-10-25 13:00:28
Last Updated: 2022-10-25 13:00:28
Published on: Medium
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PySpark — The Cluster Configuration
Author: Subham Khandelwal
Published: 2022-10-22 11:08:54
Last Updated: 2022-10-25 11:16:02
Published on: Medium
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PySpark - Distributed Broadcast Variable
Author: Subham Khandelwal
Published: 2022-10-21 13:16:56
Last Updated: 2022-10-25 11:16:53
Published on: Medium
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PySpark - Count(1) vs Count(*) vs Count(col_name)
Author: Subham Khandelwal
Published: 2022-10-20 07:54:25
Last Updated: 2022-10-25 11:17:27
Published on: Medium
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PySpark - The Basics of Structured Streaming
Author: Subham Khandelwal
Published: 2022-10-19 11:33:55
Last Updated: 2022-10-25 11:18:34
Published on: Medium
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PySpark - Tune JDBC for Parallel effect
Author: Subham Khandelwal
Published: 2022-10-18 11:46:43
Last Updated: 2022-10-25 11:18:02
Published on: Medium
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PySpark - JDBC Predicate Pushdown
Author: Subham Khandelwal
Published: 2022-10-17 10:32:39
Last Updated: 2022-10-25 10:19:10
Published on: Medium
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PySpark - Read Compressed gzip files
Author: Subham Khandelwal
Published: 2022-10-16 11:40:14
Last Updated: 2022-10-25 11:23:41
Published on: Medium
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PySpark - Read Binary Files like PNG or PDF
Author: Subham Khandelwal
Published: 2022-10-15 12:47:04
Last Updated: 2022-10-15 11:47:04
Published on: Medium
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PySpark - The Tiny File Problem
Author: Subham Khandelwal
Published: 2022-10-14 12:09:19
Last Updated: 2022-10-25 11:19:58
Published on: Medium
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PySpark - The Magic of AQE Coalesce
Author: Subham Khandelwal
Published: 2022-10-13 12:16:57
Last Updated: 2022-10-25 11:22:28
Published on: Medium
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PySpark - Columnar Read Optimization
Author: Subham Khandelwal
Published: 2022-10-12 13:14:09
Last Updated: 2022-10-12 16:27:04
Published on: Medium
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PySpark - The Famous Salting Technique
Author: Subham Khandelwal
Published: 2022-10-11 09:52:48
Last Updated: 2022-10-11 09:52:48
Published on: Medium
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PySpark - User Defined Functions vs Higher Order Functions
Author: Subham Khandelwal
Published: 2022-10-10 12:41:46
Last Updated: 2022-10-10 12:48:16
Published on: Medium
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PySpark - Optimize Pivot Data Frames like a PRO
Author: Subham Khandelwal
Published: 2022-10-09 08:51:24
Last Updated: 2022-10-09 08:51:24
Published on: Medium
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PySpark - Merge Data Frames with different columns
Author: Subham Khandelwal
Published: 2022-10-08 14:41:07
Last Updated: 2022-10-08 14:45:39
Published on: Medium
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PySpark - Flatten JSON/Struct Data Frame dynamically
Author: Subham Khandelwal
Published: 2022-10-07 08:23:49
Last Updated: 2022-10-07 08:23:49
Published on: Medium
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PySpark - Read/Parse JSON column from another Data Frame
Author: Subham Khandelwal
Published: 2022-10-06 11:18:31
Last Updated: 2022-10-06 11:18:31
Published on: Medium
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PySpark - Create Spark Data Frame from API
Author: Subham Khandelwal
Published: 2022-10-05 07:40:35
Last Updated: 2022-10-05 07:40:35
Published on: Medium
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PySpark - Create Spark Datatype Schema from String
Author: Subham Khandelwal
Published: 2022-10-04 10:36:05
Last Updated: 2022-10-05 08:02:59
Published on: Medium
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PySpark - Create Data Frame from List or RDD on the fly
Author: Subham Khandelwal
Published: 2022-10-04 10:00:52
Last Updated: 2022-10-04 10:03:17
Published on: Medium

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Subham is working as Senior Data Engineer at a Data Analytics and Artificial Intelligence multinational organization.
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