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Book - Intermediate

Joe Celko's Trees and Hierarchies in SQL for Smarties (The Morgan Kaufmann Series in Data Management Systems) amazon.co.uk

The demand for SQL information and training continues to grow with the need for a database behind every website capable of offering web-based information queries. SQL is the de facto standard for database retrieval, and if you need to access, update, or utilize data in a modern database...


Book - Beginner

Joe Celko's SQL for Smarties: Advanced SQL Programming (The Morgan Kaufmann Series in Data Management Systems) amazon.co.uk

SQL for Smarties was hailed as the first book devoted explicitly to the advanced techniques needed to transform an experienced SQL programmer into an expert. Now, 20 years later and in its fifth edition, this classic reference still reigns supreme as the only book written by a SQL master that...


Tutorial - Beginner

Programming Foundations: Databases linkedin.com

Relational databases

Keys and unique values

Planning a database

Creating tables

Defining relationships

Normalization and denormalization

Writing queries

Sorting results

Joining tables

Modifying data


Tutorial - Beginner

Become a Data Analyst Learning Path | LinkedIn Learning, formerly Lynda.com linkedin.com

Data analysts examine information using data analysis tools and help their teams develop insights and business strategies. You’ll need skills in math, statistics, communications, and working with tools designed to do data analytics and data visualization. Explore this high-demand career.