|
- bash - Difference between if -e and if -f - Stack Overflow
There are two switches for the if condition which check for a file: -e and -f What is the difference between those two?
- How to check the exit status using an if statement
Every command that runs has an exit status That check is looking at the exit status of the command that finished most recently before that line runs If you want your script to exit when that test returns true (the previous command failed) then you put exit 1 (or whatever) inside that if block after the echo That being said, if you are running the command and are wanting to test its output
- java - (AND) and || (OR) in IF statements - Stack Overflow
Java has 5 different boolean compare operators: , , |, ||, ^ and are "and" operators, | and || "or" operators, ^ is "xor" The single ones will check every parameter, regardless of the values, before checking the values of the parameters The double ones will first check the left parameter and its value and if true (||) or false ( ) leave the second one untouched Sound compilcated? An
- if and #if ; which one is better to use - Stack Overflow
if and #if are different things with different purposes If you use the if statement, the condition is evaluated at runtime, and the code for both branches exists within the compiled program The condition can be based on runtime information, such as the state of a variable if is for standard flow control in a program If you use the preprocessor's #if, the condition is evaluated at compile
- SQL Server IF EXISTS THEN 1 ELSE 2 - Stack Overflow
Using Sql Server 2012 I have a stored procedure and part of it checks if a username is in a table If it is, return a 1, if not, return a 2 This is my code: IF EXISTS (SELECT * FROM tblGLUserA
- SQL Server IF NOT EXISTS Usage? - Stack Overflow
No, it is not As I'm using EXISTS, I was just following what I thought was standard practice in sub-queries using EXISTS
- r - if - else if - else statement and brackets - Stack Overflow
I understand the usual way to write an "if - else if" statement is as follow:
- How to show if condition on a sequence diagram?
I know this question is old and I haven't done a search yet, but it made me wonder whether showing branching is even a good idea for sequence diagrams I always thought the conditions for the sequence were explicitly described in the scenario and thus no branching took place during the sequence Alternative paths were handled by describing a variant of the scenario which had its own sequence
|
|
|