Note: this extract contains some colored text ( particularly in code listing). sql antipatterns avoiding the pitfalls of database programming by bill karwin bill karwin has helped thousands of people write better sql and build stronger relational databases. for more information or to purchase a paperback or pdf copy, please visit pragprog. each chapter in this book helps you identify, explain, and correct a unique and dangerous antipattern. sql antipatterns, volume 1 avoiding the pitfalls of database programming. this pdf file contains pages extracted from sql antipatterns, published by the pragmatic bookshelf. now he’ s sharing his collection of antipatterns— the most common errors he’ s identified in those thousands of requests for help. most developers who rely on sql are experts in their favorite language ( such as java, python, or go), but they’ re not experts in sql. the chances are good that your application' s database layer already contains. by bill karwin sql is the ubiquitous language for software developers working sql antipatterns pdf with structured data. the four parts of the book group the antipatterns in terms of logical database design, physical database design, queries, and application development. this pdf file contains pages extracted from sql antipatterns, volume 1, published by the pragmatic bookshelf. this is available only in online versions of the books.