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Add a column to a table, if it does not already exist
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You can use a similar construct by using the sys.columns table io sys.objects.
IF NOT EXISTS (
SELECT *
FROM sys.columns
WHERE object_id = OBJECT_ID(N'[dbo].[Person]')
AND name = 'ColumnName'
)
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How to generate serial version UID in Intellij
When I used Eclipse it had a nice feature to generate serial version UID.
5 Answers
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Is there any way to post events to Google Analytics via server-side API? [closed]
... This should be accepted answer. We probably are in a similar situation like OP where we want to have fairly accurate revenue figure with website visitors data. And browser side tracking just not good enough for the last step of completing payment (for e.g. customer does not come back from pa...
Spring JPA @Query with LIKE
...Param("username") String username)" but as it is told in Spring documentation, this method is equal to
" where user.username like ?1 ". It is not good for me, as I already told that I'm trying to get all users whose username contains ...
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Reloading submodules in IPython
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If you want to always enable this settings, modify your IPython configuration file ~/.ipython/profile_default/ipython_config.py[1] and appending:
c.InteractiveShellApp.extensions = ['autoreload']
c.InteractiveShellApp.exec_lines = ['%autoreload 2']
Credit to @Kos via a comment below.
[1]
I...
Remove CSS “top” and “left” attributes with jQuery
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$('.map').css('top', 'auto').css('left', 'auto');
You also have the option of wholly removing the style attribute:
$('.map').removeAttr('style');
However, if you're using other jQuery UI components, those may require inline styles that you don't want to be removed, so proceed with caution the...
App Inventor 2 颜色代码块 · App Inventor 2 中文网
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ComponentGroup 组件组扩展：监控内容变化和批量启用禁用组件 · App Inventor 2 中文网
... 组件参考文档 拓展参考文档 概念参考文档 IoT 参考文档 技术和其他指南 中文网原创 VIP 专享 App教程 入门必读 App上架指南 特色 AI 助手 · 一句话生成 App 鸿蒙 · 一套...
Xcode 4 says “finished running ” on the targeted device — Nothing happens
The app neither installs nor runs on my device. All provisioning profiles are up to date. I've already tried deleting and re-installing them.
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How to scale a UIImageView proportionally?
I have a UIImageView and the objective is to scale it down proportionally by giving it either a height or width.
17 Answer...