Null or nonexistent data gets complicated when the application expects a data value and gets nothing or unexpected values; that's when you must perform coding that properly handles these situations to ...

clauses IN and EXISTS are interchangeable. However, they’re quite different in how they handle NULL values and may give different results. The problem comes from the fact that, in an Oracle database, ...

We’ll start with the most far-reaching addition, which the spec describes as “a new Iterator global with associated static and prototype methods for working with iterators.” The most exciting part of ...