If you work with SQL, databases or data pipelines, you are already at the centre of AI systems, even if you have never written a prompt. RAG means retrieval over your data, vector search has entered PostgreSQL through pgvector, agents query databases through MCP tools, and evaluating a model starts with a clean golden dataset. Your relevance does not depend on learning machine learning, but on understanding how models consume data and what makes them give wrong answers.
AI projects that fail in production very often fail on data: badly indexed documents, permissions ignored at retrieval, schemas the model does not understand, evaluation sets that do not reflect reality. Someone who knows data modelling, data quality and controlled access solves exactly these problems, provided they also understand the other half: embeddings, chunking, hybrid search, structured outputs, evals.
At the same time, models now generate queries, which changes who writes SQL. The need for SQL does not disappear; the monopoly on it does. Value moves towards designing schemas that models can use, validating what they generate and governing access: skills the courses below build on your foundation.
Chunking, embeddings, vector indexing, hybrid filtering and permissions at row or document level. A RAG pipeline is, in essence, a data pipeline with a model stage at the end.
Generated queries reach products. The AI security course treats model output sent to a database as untrusted input, so clear schemas, parameterization, least-privilege access and validation before execution become the data team’s job.
MCP servers for databases give agents access to schemas and queries. Least-privilege permissions, read-only resources, limits and audit are new requirements for whoever administers the data.
Golden datasets, human annotation, retrieval metrics and privacy rules for evaluation data. Evaluating AI systems is, to a large extent, data work done rigorously.
Each of these changes has at least one course in the track below. See the track
When you have gone through all the lessons of a course and have an average of at least 70% on its quizzes, you issue from your account, after confirming the conditions, a Certificate of Completion with a unique number and a public verification link. It is not issued automatically and it comes at no extra cost, with a plan or with single-course access.
A private attestation of course completion. It is NOT a diploma or a state-recognised qualification under Romanian Laws 198/2023, 199/2023 or Government Ordinance 129/2000; employers may take it into account at their own discretion.
In the order in which they matter. If you already have experience with model APIs, skip the foundations. For each course, the reason it matters to someone who works with SQL and databases.
What an LLM is, how you talk to it, and the data engineering underneath every serious AI system.
LLMs, APIs, agents and evaluation: the complete frame, with a module on RAG, embeddings and vector databases that sets pgvector next to the dedicated engines.
Key modules: Machine Learning Essentials · Large Language Models and Modern Architectures · Working with LLM APIs and Integrations · AI Tools for Developers
Read the free preview Course details This course only: €99/monthPrompt engineering for code, including a case study on optimising a slow SQL query, and prompt security: instructions that produce verifiable output and resist injection.
Key modules: Advanced Prompting Techniques · Multi-Modal Prompt Engineering · Prompt Engineering for AI Agents · Prompt Engineering for Code
Read the free preview Course details This course only: €99/monthThe course written for you: ingestion with change data capture, ETL and ELT with Airflow, Dagster and dbt, Parquet and Iceberg, data quality and contracts, embedding pipelines and vector databases in depth, with Python and SQL throughout.
Key modules: Storage and Table Formats: Parquet and Iceberg · Ingestion from Diverse Sources · ETL/ELT and Orchestration · Data Quality, Validation, and Contracts
Read the free preview Course details This course only: €99/monthThe central skill: correct retrieval, with permissions, over relational data and documents.
Chunking, embedding models, hybrid search, re-ranking, advanced architectures and systematic evaluation: the pipeline of any AI system that answers from your data, with pgvector among the vector stores it covers.
Key modules: Implementing the RAG Pipeline · Embedding Models and Document Processing · Advanced RAG · Advanced RAG Architectures
Read the free preview Course details This course only: €99/monthRetrieval strategies for context, vector, graph, relational and hybrid, plus persistent memory and compaction: where data modelling decides the quality of an agent.
Key modules: The Anatomy of Context: The Components of the Inference Window · Memory Types for AI Agents · Memory Managers and Persistence: Extraction, Consolidation, Store · Retrieval Strategies for Context: Vector, Graph, Relational, Hybrid
Read the free preview Course details This course only: €99/monthHow data is exposed to agents: the schema as a read-only resource, the query as a parameterized tool, with validation against SQL injection, authentication and least-privilege permissions. The practical projects include a PostgreSQL server.
Key modules: Building MCP Servers with Python · Building MCP Servers with TypeScript · Transport, Authentication and Configuration · Enterprise Patterns and Production Architectures
Read the free preview Course details This course only: €99/monthPostgres with pgvector as the product database, and multi-tenant isolation built on one rule: every row that belongs to a tenant carries a tenant id, and every query filters on it.
Key modules: Choosing Your Stack: Frontend, Backend, and LLM APIs · Integrating the LLM: Streaming, Tools, and Cost Control · Vector Search and RAG for Your Product · Authentication and Multi-Tenancy
Read the free preview Course details This course only: €99/monthThe stage where your data becomes the basis for the quality, compliance and safety of the AI system.
Golden datasets with edge cases and slices, human annotation, RAG metrics with Ragas and regression tests in CI/CD, with attention to privacy for evaluation data: evaluation as a data discipline.
Key modules: Classic Metrics and Why They Fail on Open-Ended Text · LLM-as-a-Judge: Design, Bias and Calibration · Building Evaluation Datasets · The Evaluation Tooling Landscape
Read the free preview Course details This course only: €99/monthData and feature management with feature stores, training pipelines, data lineage and drift monitoring: the pipeline in which your data feeds and monitors models.
Key modules: Experiment Tracking and Reproducibility · Data and Feature Management · Training Pipelines and Orchestration · Model Registry, Versioning, and CI/CD for ML
Read the free preview Course details This course only: €99/monthPII, leakage and poisoning, the insecure handling of model output such as generated SQL, and the security of RAG pipelines: the requirements the data team will be asked to meet.
Key modules: Prompt Injection: The Defining Threat · Insecure Output Handling and Downstream Exploits · Guardrails: Input and Output Filtering · Securing RAG and Agents: Excessive Agency
Read the free preview Course details This course only: €99/monthWhat already exists, so that you do not start from zero. The courses in the track teach you what to build with it.
These are the skills you practise in the courses of the track; results depend on the time you invest and on your previous experience.
Start the SQL and databases trackCode examples, architectures and case studies, and in some courses a capstone project at the end. Not summaries of documentation, but structured material that you go through in order, at your own pace.
You ask in the context of the lesson, by typing or by voice, and get an explanation of the concept you are on. Every lesson has its quiz: about 354 questions per course on average. The professor is an AI system, not a human teacher, included in every plan with a fair-use limit.
Agentic coding, MCP, RAG, agents, evals, LLM security, fine-tuning, AIOps, computer vision and Edge AI are whole courses in the catalog, not closing chapters.
A preview of the first lesson of every course can be read without an account. Then you choose a single course, €99 per month, or IT Pro, €399 per month, with the whole IT catalog. You can stop the renewal anytime from your account; access stays until the end of the period already paid for.
The courses on this page are IT courses. With the IT Pro plan you have the whole IT catalog, the technical learning paths and the AI Professor; if you want only one course, you buy it separately.
When you care about a single topic in the catalog
about €4 per hour of course
Developers, data engineers, architects. Code and production.
€16 per month for each of the 25 courses
The whole catalog, both tracks side by side.
€10 per month for each of the 50 courses
Subscriptions renew automatically; you can stop the renewal anytime from your account, and access stays until the end of the period already paid for. As digital content with immediate access, see the withdrawal conditions.
Compare all the plans · Plans for teams, by number of seats · Give a month of access as a gift
The same skills, seen from each ecosystem. The languages close to SQL and databases are highlighted.
Yes. The courses are chosen for the data side of AI systems: pipelines, retrieval, schemas, evaluation, controlled access. You need Python at reading level for the examples; the introduction to AI engineering gives you the frame for the rest.
The data engineering course uses Python and SQL throughout, including in its lesson on pgvector. The MCP course builds a PostgreSQL server and treats the query as a parameterized tool. The other courses use Python, with SQL appearing where a database is involved.
They change it. Models generate queries; someone has to design schemas they understand, validate what they produce, limit access and evaluate the results on known sets. Those are the skills the data engineering, MCP, security and evaluation courses build on your SQL foundation.
All the courses recommended here are IT courses and open with the IT Pro plan, which includes every IT course in the catalog. It is billed monthly, and you can stop the renewal anytime from your account. There is also individual, monthly access to a single course. Every course has a free preview of its first lesson, readable without an account.
10 courses, ~251 hours, opened with IT Pro: €399 per month, VAT included, with access to all 25 IT courses. The AI Professor is included in every plan.
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