Essential SQL Operations. SQL offers a wide range of operations for manipulating data. The Data Manipulation Language (DML) provides commands for retrieving, inserting, updating, and deleting data.

How to Learn SQL: A U.S. News Guide You don’t have to be a programmer to learn SQL for datasets. U.S. News & World Report Education takes an unbiased approach to our recommendations.

The guide covers best practices for analyzing SQL query execution plans, how to identify and resolve common performance bottlenecks, and tips for tuning queries to improve database performance.

Alice Zhao (MSiA '13) recently celebrated the publication of a new edition of O'Reilly's SQL Pocket Guide. We spoke with her about the writing process, what she hopes the book accomplishes, and how ...