A method for describing a database query originally developed by IBM for mainframes. A replica of an empty record is displayed and the search conditions are typed in under their respective columns ...

This fifth edition of a well-known title has been updated for Oracle 12c. As with previous editions, the book is very hands-on; you’re introduced to a concept, shown an example, then asked to work ...

This article is the Japanese version of a post published on STEALIEN's Korean technical blog in December 2022. It introduces ...

SQL is a convenient way to manage and query your data, but badly written queries can tie up your database. Here are seven common SQL traps and how to avoid them. Database developers have it tough.