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TSQL Pivot without aggregate function
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that actually wont work if you have 2 costumers with the same first name
– Leonardo
Feb 20 '15 at 18:38
1
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When should you use 'friend' in C++?
...ough the C++ FAQ and was curious about the friend declaration. I personally have never used it, however I am interested in exploring the language.
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Count occurrences of a char in a string using Bash
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you can for example remove all other chars and count the whats remains, like:
var="text,text,text,text"
res="${var//[^,]}"
echo "$res"
echo "${#res}"
will print
,,,
3
or
tr -dc ',' <<<"$var" | awk '{ print length; }'
or
tr -dc ',' &l...
How do I parse command line arguments in Bash?
Say, I have a script that gets called with this line:
37 Answers
37
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How can I use functional programming in the real world? [closed]
...ey avoid bugs by eliminating state, but also because they can be easily parallelized automatically for you, without you having to worry about the thread count.
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What is the logic behind the “using” keyword in C++?
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In C++11, the using keyword when used for type alias is identical to typedef.
7.1.3.2
A typedef-name can also be introduced by an alias-declaration. The
identifier following the using keyword becomes a typedef-name and the
optional attribute-specifier-seq follow...
Win32汇编--使用MASM - C/C++ - 清泛网 - 专注C/C++及内核技术
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C语言中的HelloWorld程序：
#include <stdio.h>
main()
{
printf(“Hello, world\n”);
}
像这样的一个程序，就说明了C语言中最基本的格式，main()中的括号和下面的花括号说明了一个函数的定义方法，printf语句说明了一个函数的调用方法...
How to autosize a textarea using Prototype?
...nal sales application for the company I work for, and I've got a form that allows the user to change the delivery address.
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SQL JOIN and different types of JOINs
... and start with cross join and then "build" inner join on top of it. After all, the mere concept of cross join invalidates these informal and inaccurate Venn diagram visualisations...
– Lukas Eder
Apr 21 '17 at 17:25
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Copy/duplicate database without using mysqldump
...e uses a "SHOW CREATE TABLE" statement which generates a CREATE TABLE with all properties of the original.
– Danita
May 6 '11 at 15:34
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