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How do I drop a foreign key constraint only if it exists in sql server?
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In SQL Server 2016 you can use DROP IF EXISTS:
CREATE TABLE t(id int primary key,
parentid int
constraint tpartnt foreign key references t(id))
GO
ALTER TABLE t
DROP CONSTRAINT IF EXISTS tpartnt
GO
DROP...
get NSDate today, yesterday, this Week, last Week, this Month, last Month… variables
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@fengd well, Today 27 Jun 2016, at 1am date will be 28 Jun 2016, and if I subtract 24 hours, date will be 27 Jun 1 am. What is the point that i missed?
– gokhanakkurt
Jun 27 '16 at 10:39
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How to jump from Intellij terminal to editor with shortcut
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UPDATE - March 2016
Since this question is getting some attention, I wanted to remind everyone that you can toggle between the editor and the terminal window easily enough with a built in action. By default it is mapped to Alt+F12 and ⌥F...
Firebug says “No Javascript on this page”, even though JavaScript does exist on the page
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According to blog.mozilla.org/futurereleases/2016/02/04/… Firefox 50.0.1 will be released on 2016-12-13, so it's a bit of a wait to see if they fix it.
– CJ Dennis
Nov 23 '16 at 23:24
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Get week of year in JavaScript like in PHP
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Today, January 4 2016, I noticed that it was necesarry to add d.setMilliseconds(0) as well - it kept showing different week numbers for the same date depending on whether I used new Date() or new Date("1/4/2016"). Just a heads up for others w...
SQL Server database backup restore on lower version
...ork, but it requires the correct version of SSMS. For example, I use SSMS 2016 CTP3 and it worked flawlessly. It did NOT work for me using SSMS 2012. I have not tested SSMS 2014.
– Greg Gum
Apr 12 '16 at 18:01
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妈妈是捡来的！成都这个小学生的作文又火了！ - 轻松一刻 - 清泛网 - 专注C...
...捡来的！成都这个小学生的作文又火了！还记得之前成都有个小学生的作文叫《我爸爸是春熙路卖酸辣粉的》吗？最近这个小学生写的这首小诗又火了！ ﹁ 秘密 ﹂妈妈说我...还记得之前成都有个小学生的作文叫...
三个故事说穿了许多人 - 轻松一刻 - 清泛网 - 专注C/C++及内核技术
...久而久之便习惯了。习惯了，便理所当然了。于是，直到有一天，甲将鸡蛋给...一 、 甲不喜欢吃鸡蛋，每次发了鸡蛋都给乙吃。
刚开始乙很感谢，久而久之便习惯了。
习惯了，便理所当然了。
于是，直到有一天，甲将鸡蛋...
%d,%c,%s,%x等转换符 释义 - C/C++ - 清泛网 - 专注C/C++及内核技术
...点数、十六进制数字和p-(P-)记数法(C99) %c 字符 %d 有符号十进制整数 %f 浮...转换说明符
%a(%A) 浮点数、十六进制数字和p-(P-)记数法(C99)
%c 字符
%d 有符号十进制整数
%f ...
_block_type_is_valid(phead- nblockuse) - C/C++ - 清泛网 - 专注C/C++及内核技术
_block_type_is_valid(phead- nblockuse)出现这种错误的原因有多个，基本原因有四个,可以参见:SO。错误如下:比较常见的错误时，把多个对象的数组当做一个对象删除了，例如:void te...出现这种错误的原因有多个，基本原因有四个, 可以参...