IT Career Guides & Free Resources
Expert roadmaps, tutorials, salary guides and interview prep across Data Science, Generative AI, Python, Cloud & Analytics — written by GloryTecks trainers in Hyderabad.
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Ollama Tutorial: Run LLMs Locally on Your Machine
Ollama runs open language models on your own computer with one install. This tutorial walks through the command line, the REST API, conversation history, the OpenAI-compatible endpoint and a custom model built from a Modelfile, all run on an ordinary laptop, with the settings and limits worth knowing.
Pivot Tables in Excel: A Complete Tutorial
A complete Excel pivot table tutorial: preparing data so pivots work, building a first summary, choosing between sum, count and average, showing values as percentages and running totals, grouping dates into months and quarters, filtering with slicers, refreshing correctly, and the mistakes that produce wrong totals.
Airflow Tutorial: Orchestrating Data Pipelines
A practical introduction to Apache Airflow: what orchestration adds to a pipeline, the scheduler, DAG processor and metadata database, a complete three-task DAG written with the TaskFlow API and run on real taxi data with dag.test, how XComs, retries and logical dates work, an idempotent rerun, and design habits.