How to avoid the "divide by zero" error in SQL? - Stack Overflow
May 14, 2009 · This altered example works fine: SELECT 1 / NULLIF(CAST(NULL AS INT), 0). In real life, you are going to supply a table column to NULLIF() rather than a NULL constant. Since table …
How to keep one variable constant with other one changing with row …
207 Lets say I have one cell A1, which I want to keep constant in a calculation. For example, I want to calculate a value like this: =(B1+4)/(A1) How do I make it so that if I drag that cell to make a …
c# - Declare a const array - Stack Overflow
It is possible to declare a constant array; the problem is initializing it with a constant value. The only working example that comes to mind is const int[] a = null; which is not very useful, but indeed an …
How to use the PI constant in C++ - Stack Overflow
Nov 13, 2009 · I want to use the PI constant and trigonometric functions in some C++ program. I get the trigonometric functions with include <math.h>. However, there doesn't seem to be a definition for …
c - Constant pointer vs Pointer to constant - Stack Overflow
Jan 31, 2014 · Constant Pointers Lets first understand what a constant pointer is. A constant pointer is a pointer that cannot change the address its holding. In other words, we can say that once a constant …
How to add a constant column in a Spark DataFrame?
Most of the time, you don't need to use lit to append a constant column to a DataFrame. You just need to use lit to convert a Scala type to a org.apache.spark.sql.Column object because that's what's …
Switch case in C# - a constant value is expected
3 switch is very picky in the sense that the values in the switch must be a compile time constant. and also the value that's being compared must be a primitive (or string now). For this you should use an if …
What does the PHP error message "Use of undefined constant" mean ...
Using a constant that's not defined in this version of PHP, or is defined in an extension that's not installed There are some system-defined constants that only exist in newer versions of PHP, for …
Java switch statement: Constant expression required, but it IS constant
1 - The constant expression restrictions can be summarized as follows. Constant expressions a) can use primitive types and String only, b) allow primaries that are literals (apart from null) and constant …
r - Error: unexpected symbol/input/string constant/numeric constant ...
Error: unexpected symbol/input/string constant/numeric constant/SPECIAL in my code Asked 11 years, 2 months ago Modified 2 years, 8 months ago Viewed 421k times