Jin

Hi, I'm Jin! 👋 A data professional exploring the future of analytics in the AI era. Writing about how AI is changing the way we work with data, make decisions, and create value.

Germany Joined on Dec 10, 2023 https://blog.luca-liu.com/

Pronouns

she/her

Work

Data Analyst

Jin

Oct 18

Best AI Coding Agent for the Money: What Databricks’ Benchmark Reveals

#ai #agents #databricks #benchmark

2 min read

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Jin

Aug 12

How to Connect Azure SQL Database in Azure Databricks with PySpark

#python #databricks #database #pyspark

2 min read

Jin

Aug 11

DP-750: Databricks Asset Bundles, Git, and ALM Explained and with Real Exam Questions

#azure #databricks #certification #tutorial

10 min read

Jin

Aug 11

Azure Databricks: Fix “DataFrame Object Has No Attribute write”

#dataanalyst #pandas #pyspark #database

2 min read

Jin

Aug 10

DP-750: Slowly Changing Dimensions and Data Quality Expectations Explained and with Real Exam Questions

#azure #databricks #certification #tutorial

10 min read

Jin

Aug 6

DP-750: Delta Lake Performance Optimization Explained and with Real Exam Questions

#azure #databricks #certification #tutorial

8 min read

Jin

Aug 5

DP-750: Delta Lake Table Operations Explained and with Real Exam Questions

#azure #databricks #certification #tutorial

9 min read

Jin

Aug 4

DP-750: Structured Streaming, Checkpointing, Schema Evolution, and Change Data Feed Explained and with Real Exam Questions

#azure #databricks #certification #tutorial

9 min read

Jin

Aug 3

DP-750: Data Ingestion Patterns Explained and with Real Exam Questions

#azure #databricks #certification #tutorial

8 min read

Jin

Aug 2

DP-750: External Data Access Explained and with Real Exam Questions

#azure #databricks #certification #tutorial

10 min read

Jin

Jul 30

# DP-750: Unity Catalog Governance Explained and with Real Exam Questions

#azure #databricks #certification #tutorial

10 min read

Jin

Jul 29

DP-750: Unity Catalog Permissions and Least Privilege Access Explained and with Real Exam Questions

#azure #databricks #certification #tutorial

10 min read

Jin

Jul 28

DP-750: Unity Catalog Object Model Explained and with Real Exam Questions

#azure #databricks #certification #tutorial

7 min read

Jin

Jul 27

DP-750: Lakeflow Jobs Explained and with Real Exam Questions

#azure #databricks #certification #tutorial

10 min read

Jin

Jul 24

DP-750: Azure Databricks Cluster Explained and with Real Exam Questions

#azure #databricks #certification #tutorial

9 min read

Jin

Jul 23

Was My Claude Account Banned Because I Speak Chinese?

#ai #anthropic #claude #llm

2 min read

Jin

Jul 22

Selling Power BI Templates for Passive Income

#powerbi #sideprojects #dataanalyst

2 min read

Jin

Jul 5

Why I Left China as a Data Analyst

#job #career #dataanalyst #ai

3 min read

Jin

Jul 5

Where to Write Python in Azure - Building the Python ETL Pipeline

#azure #data #python #pipeline

3 min read

Jin

May 6

Stop Using Spark for Your Small Data - Why Azure Functions is the Right Tool for the Job

#azure #dataanalyst #functions #dataengineering

3 min read

Jin

May 6

Data Analyst: Does Your Work Actually Matter?

#analytics #career #data #dataanalyst

3 min read

Jin

May 6

How to Fix "command 'claude-vscode.editor.openLast' not found" in VS Code

#ai #vscode #claude

1 min read

Jin

Mar 13

How to Store JSON and XML in SQL Databases

#sql #database #tutorial #data

3 min read

Jin

Feb 27

Fixing Azure SQL Connection Errors in Azure Scheduled Python Job

#azure #database #automation #python

3 min read

Jin

Jan 6

How to Install Python Package in Azure Synapse for Apache Spark pools

#azure #tutorial #python #data

2 min read

Jin

Jan 6

How to Calculate a Dynamic Truncated Mean in Power BI Using DAX

#powerbi #tutorial #dax #data

3 min read

Jin

Dec 9 '25

Data Security in SQL: Encryption, Roles, and Permissions

#database #tutorial #sql #data

2 min read

Jin

Dec 8 '25

Stuck in a Version Trap - How I Used Azure ML to Deploy an Azure Function

#azure #dataanalyst #dataengineering #tutorial

3 min read

Jin

Dec 8 '25

10 Essential Data Science Algorithms & Techniques

#machinelearning #datascience #algorithms #tutorial

11 min read

Jin

Nov 18 '25

Essential Services for Newcomers in Germany - Personal Recommendations

#germany #job #career

4 min read

Jin

Nov 18 '25

English Speaking Companies in Germany

#germany #job #career

4 min read

Jin

Nov 10 '25

Markdown Code Blocks Breaking HTML Rendering: How to Fix Line Break Issues

#markdown #html #webdev

4 min read

Jin

Nov 10 '25

Draw a Fish and Watch it Swim - Crazy Idea Create Viral Website

#sideprojects #buildinpublic #webdev

3 min read

Jin

Nov 10 '25

The Opportunity Card Germany - My First-Hand Experience and Complete Guide

#germany #job #career

6 min read

Jin

Nov 10 '25

Python + AI - The Essential Skill Combination for Modern Workers Without Coding Backgrounds

#python #ai #productivity #pandas

3 min read

Jin

Aug 8 '25

NotionNext - The Ultimate Solution for Notion-Based Website Building

#notion #nextjs #webdev #tutorial

3 min read

Jin

May 2 '25

Do You Really Need a “Second Brain”?

#discuss #productivity #learning

2 min read

Jin

Feb 21 '25

SQL Advanced Functions - CASE, COALESCE, and NULLIF Explained

#sql #database #tutorial

3 min read

Jin

Feb 14 '25

Database Design Principles - Normalization and Denormalization

#sql #database #tutorial

3 min read

Jin

Jan 27 '25

Implementing Triggers in SQL - Automating Database Actions

#sql #database #tutorial

3 min read

Jin

Jan 21 '25

Handling Dates and Times in Oracle Database

#sql #database #oracle #tutorial

3 min read

Jin

Jan 20 '25

SQL Transactions - COMMIT, ROLLBACK, and Savepoints with Python

#python #database #sql #tutorial

2 min read

Jin

Jan 16 '25

SQL Recursive Queries - Understanding Common Table Expressions (CTEs)

#sql #database #oracle #tutorial

2 min read

Jin

Jan 15 '25

SQL Performance Tuning: Best Practices for Faster Queries

#sql #database #oracle #tutorial

3 min read

Jin

Jan 13 '25

Mastering SQL Joins - Inner, Outer, Cross, and Self-Joins with Examples

#sql #database #oracle #tutorial

4 min read

Jin

Jan 6 '25

A Guide to Manage Access in SQL - GRANT, REVOKE, and Access Control

#sql #database #tutorial #data

3 min read

Jin

Jan 5 '25

A Quick Guide to SQL Data Modification Commands with Examples

#sql #database #data #tutorial

3 min read

Jin

Jan 4 '25

How to chat with Local LLM in Obsidian

#llm #ai #beginners #tutorial

2 min read

Jin

Jan 3 '25

Getting Responses from Local LLM Models with Python

#llm #ai #beginners #tutorial

3 min read

Jin

Jan 2 '25

Local LLM Models and Game Changing Use Cases for Life Hackers

#devchallenge #newyearchallenge #future

2 min read

Jin

Jan 1 '25

Why You Should Try a Local LLM Model—and How to Get Started

#llm #ai #beginners #tutorial

2 min read

Jin

Dec 29 '24

A Quick Review of SQL Window Functions with Examples

#sql #database #tutorial #beginners

4 min read

Jin

Sep 5 '24

How to Publish an Article to DEV Using Python

#python #tutorial #api #productivity

3 min read

Jin

Sep 2 '24

How to Schedule Python Scripts on a Mac Using Crontab

#python #tutorial #beginners #productivity

3 min read

Jin

Aug 31 '24

How to Publish an Article to Medium Using Python and the Medium API

#python #tutorial #api #productivity

2 min read

Jin

Aug 30 '24

What Does a -2 Reaction Mean? Is It a Bug?

#discuss #writing #beginners

1 min read

Jin

Aug 30 '24

Obsidian - How to create Daily note every day, even if I don't open it

#obsidian #tutorial #productivity #mac

3 min read

Jin

May 23 '24

Tableau Desktop Public: Try the Free Version for Data Visualization

#tutorial #tableau #visualization #software

2 min read

Jin

May 20 '24

How to Use ChatGPT on macOS: Installation and Access Solutions

#ai #chatgpt #tutorial

2 min read

Jin

May 20 '24

Effective Strategies for Searching Stored Procedures in Oracle

#tutorial #programming #database #oracle

2 min read

Two Year Club

2025 New Year Writing Challenge Completion Badge

One Year Club

Writing Debut

1 Week Community Wellness Streak

4 Week Writing Streak

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