SQL: Advanced Guide in SQL Programming

SQL: Advanced Guide in SQL Programming

Posted by jack_miller | Published 10 months ago

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By: Paige Jacobs

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You’ve learned the fundamentals of SQL programming. You’ve done some basic data manipulation that makes it feel SQL is now your thing. Yet, you’re not feeling competent enough to play around with the complexity and versatility of the language, or based on your basic SQL programming skills, you think SQL is not as robust of a programming language as people preach.

The truth is, SQL can be a tricky programming language if not well mastered. The programming language is a verbose one that requires adequate learning and years of practice to properly learn a good number of the tricks and techniques offered by the language. This is the motivation with which I wrote this book.

If you want to go past the basic SELECT, INSERT, UPDATE and DELETE statements in SQL programming at a pace that saves you time without getting you tired of the learning process because of unclear complexities, then this book is for you. This book doesn’t try to compress one year of learning into one month but rather explicitly covers advanced techniques used in SQL programming, for you to better understand and be able to use them in practice more quickly.

The examples used to explain several concepts in this book mimic real-life scenarios. This way, you can imagine yourself working on an actual company’s database so that your first or next experience with professionally using SQL will not be vague and confusing. Standard statements are used to provide solutions to the problems defined in this book, and I use DBMS-specific statements where appropriate.

Some of the techniques covered in this book include but are not limited to: creating and using stored routines such as functions and procedures, using correlated and uncorrelated sub queries, using loops and conditional statement to handle complex logic, using triggers to monitor data manipulations that occurs in a database to ensure data integrity and avoid inappropriate events from making changes to the database, how to protect database from SQL injection and database administration.

This book also provides insight into some basic SQL techniques that are useful but not commonly emphasized. These include transactions, rollback, save points, etc. I also provide you with a reference page for additional information beyond what the book offers.

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