0 vs null

I searched the FAQ on this one, couldn't really find an answer Stylistically, is it better to use 0 or NULL? I know that pre-Standard, 0 was recommended, because some compiler. Null is a special marker used in Structured Query Language (SQL) to indicate that a data value does not exist in the database Introduced by the creator of the relational database model, E F Codd, SQL Null serves to fulfill the requirement that all true relational database management systems. When using integer columns is it better to have 0 or NULL to indicate no value For example, if a table had a parent_id field and a particular entry had no parent, would you use 0 or NULL. IS NULL vs = NULL Why do these IF tests evaluate differently DECLARE @Test int -- Then do something with @Test that may result in it being NULL. NULL vs 0 vs 0L bikeshed time Erik Trulsson ertr1013 at student.uu.se Mon Mar 1 06:21:50 PST 2004 Previous message: NULL is a ((void *)0), and for C++, NULL is either > > (0L) or 0, with __LP64__ used to define the difference.NULL vs '\0' Visual Studio Languages , Windows Desktop Development > C++ Standards, Extensions, and Interop C++ Standards, Extensions, and Interop social.msdn.microsoft.com/Forums/vstudio/en-US/4c9f3a11-e963-4b31-a78e-23725a22e510/null-vs-0?forum=vclanguage Question 9 12/1/2011 5:01:43. Hi When referring to a null pointer constant in C++, is there any reason to prefer using 0 over a macro called NULL that is defined to be 0? Revisions You can edit these tests or add even more tests to this page by appending /edit to the URL Here's a list of current revisions for this page. A null-pointer constant is an integral constant expression that evaluates to zero (like 0 or 0L), or the cast of such value to type void* (like (void*)0). Page 1 of 3 - NULL vs 0 - posted in General Programming: [forked from Problems with my custom linked list class]In another thread, I gave this advice:Don't compare to 0, compare to NULL (or if using C++11, compare to nullptr).scan device driver updateI've always been annoyed by the C++ test for new failure as being a test against 0 rather than NULL I've always liked the fact that NULL was ((void*)0), not just 0. So, NULL is defined as a gcc keyword __null The difference between __null and integer constant 0 is that 0 converts to int more easily than to a pointer, hence foo(0) calls foo(int). null value VS empty cell VS VS 0 VS blank cell This is a discussion on null value VS empty cell VS VS 0 VS blank cell within the Excel Questions forums, part of the Question Forums category; Hi excellers! What is the difference between Null and Zero? Zero is a number in the set of real numbers with empty magnitude while null is a term used to denote the empty nature of a quantity or an entity. Not many end users understand the difference between an empty string of zero length () vs Null We have seen that at times, the end users put in an empty string in a field and there are no checks in the system to prevent them from being able to get that data into the database.Econ 620 Null hypothesis vs alternative hypothesis Suppose that we have data y =(y1,···,yn) and the data is generated by the true probability distributio. 0 vs Null This is a discussion on 0 vs Null within the C Programming forums, part of the General Programming Boards category; I am a little confused about the difference between zeros and nulls in C. Support and updates for Office 2003 are no longer available The Office 2003 Community forum will continue to be available for discussion on Office 2003 topics with other customers. Hi all When referring to a null pointer constant in C++, is there any reason to prefer using 0 over a macro called NULL that is defined to be 0? The null keyword is a literal that represents a null reference, one that does not refer to any object null is the default value of reference-type variables Ordinary value types cannot be null However, C# 2.0 introduced nullable value types.