Enroll Course: https://www.udemy.com/course/bestpostgres/
Are you looking to boost your career and unlock new opportunities in the tech world? Learning SQL (Structured Query Language) is one of the fastest and most effective ways to do just that. This Udemy course, “Практический курс для новичков по SQL и PostgreSQL” (Practical Course for Beginners in SQL and PostgreSQL), is your perfect starting point.
Authored by a bestseller author, this course promises to teach you how to read and write complex database queries using SQL and PostgreSQL, a highly sought-after database management system. The skills you’ll acquire are transferable to other popular DBMS like MySQL, Microsoft SQL Server, and Oracle, making this a versatile investment in your future.
The course is designed for practical application, with hands-on assignments to solidify your understanding. It covers a vast array of essential topics, starting from the very basics like SQL concepts, relational models, and PostgreSQL installation, to creating databases and tables, and understanding different relationship types and data types.
You’ll dive deep into simple selections with `SELECT`, `DISTINCT`, `COUNT`, `WHERE`, and many other clauses. The curriculum also meticulously covers various types of JOINs (INNER, LEFT, RIGHT, SELF, USING, NATURAL) and the intricacies of subqueries. Data Definition Language (DDL) is thoroughly explained, including key management, constraints, sequences, and data manipulation with `INSERT`, `UPDATE`, `DELETE`, and `RETURNING`.
Furthermore, the course touches upon database design principles, normal forms, and the utility of Views for simplifying complex queries. You’ll learn to leverage `CASE WHEN`, `COALESCE`, and `NULLIF` for conditional logic, and explore both SQL and PL/pgSQL functions, including error handling and procedural logic within PostgreSQL.
Advanced topics such as indexing, analyzing query performance with `EXPLAIN` and `ANALYZE`, working with arrays, advanced grouping techniques (`CUBE`/`ROLLUP`), custom types, `psql` utilities, data import, transactions, security, window functions, and triggers are also covered. This comprehensive coverage ensures you gain a robust understanding of SQL and PostgreSQL.
If you’re serious about advancing your career and becoming proficient in database management, this course is a highly recommended choice. It provides a clear, structured path from beginner to a capable SQL user, equipping you with in-demand skills for today’s job market.
Enroll Course: https://www.udemy.com/course/bestpostgres/