Building Reports from Logs and System Data
Visual display of automated building reports from system logs and analytics: dashboard widgets showing errors, performance trends, timestamps, metrics, downloads PDF/CSV summaries.
Data, Databases & Scripting
Introduction to Data Normalization and Relationships
Diagram showing data normalization concepts: tables with primary and foreign keys, elimination of redundancy across normal forms, entity relationships, and improved data integrity.
Connecting Python or PowerShell to a Database
Isometric studio render: neon-green geometric serpent and deep-blue shell console linked by glowing cyan-teal fiber-optic data streams to a glossy glass database tower, rim-lit HDR
Database Backup and Recovery Strategies
Database backup and recovery strategies: full, incremental, differential local, and cloud storage scheduled backups redundant copies; regular recovery testing point-in-time restore.
Working with CSV and JSON Files in Scripts
Developer working with CSV and JSON files: code editor, terminal, CSV/JSON icons, arrows showing conversion and parsing, scripts automating data processing tasks for ETL workflows.
How to Query Data Efficiently Using SQL Joins
Illustration showing SQL joins concept: tables with matching keys, INNER, LEFT, RIGHT, FULL joins, query flow, indexes and execution plan icons highlighting efficient data retrieval
SQL vs NoSQL Databases: Key Differences Explained
Image comparing SQL vs. NoSQL: SQL - fixed schema, relational tables, ACID; NoSQL - flex schemas, horizontal scaling, document/key-value/graph models, use cases, trade-offs, notes.