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Is there a MySQL option/feature to track history of changes to records?
...in a MySQL database. So when a field has been changed, the old vs new is available and the date this took place. Is there a feature or common technique to do this?
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Awk学习笔记 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...分别是Alfred Aho、Brian Kernighan、Peter Weinberger。gawk是awk的GNU版本，它提供了Bell实验室和GNU的一些扩展。下面介绍的awk是以GUN的gawk为例的，在linux系统中已把awk链接到gawk，所以下面全部以awk进行介绍。
2. awk命令格式和选项
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App Inventor 2 TaifunImage 拓展，图像高级处理功能，剪裁，压缩，翻转等 ...
... 教育 入门必读 中文教程 IoT专题 AI2拓展 ChatGPT接入 Aia Store 开通VIP 搜索 App Inventor 2 TaifunImage 拓展，图...
How to iterate object in JavaScript? [duplicate]
...nary.data and just iterate over dictionary
– brendon-ai
Nov 9 '17 at 1:29
1
for...in is for itera...
App Inventor 2 接入百度网盘API · App Inventor 2 中文网
...URL中拿出access_token，后面操作都需要它：
http://openapi.baidu.com/oauth/2.0/authorize?display=mobile&response_type=token&client_id=[AppKey]&redirect_uri=oob&scope=basic,netdisk
请注意：手机的话，必须将 display=mobile 加上，以展示手机版的授权画面（电脑...
App Inventor 2 Encrypt.Security 安全性扩展：MD5哈希，SHA1和SHA256哈希...
... 教育 入门必读 中文教程 IoT专题 AI2拓展 ChatGPT接入 Aia Store 开通VIP 搜索
App Inventor 2 Encrypt.Security 安全性...
Zooming editor window android studio [duplicate]
... How to get it back to the default size?
– Ethan_AI
Feb 9 '16 at 22:33
On MacOS there is a slight bug where if you...
What’s the best way to reload / refresh an iframe?
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absolute it's work, but stuck with same domain origin policy ==a
– Bobby Stenly
Mar 19 '13 at 6:32
6
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Expand a random range from 1–5 to 1–7
...rd, and if we don't get a good result, we keep throwing darts.
Like Adam said, this can run forever in the worst case, but statistically the worst case never happens. :)
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Python setup.py develop vs install
...sing python setup.py develop --user? Thanks!
– ROBOT AI
Dec 16 '16 at 18:58
2
I think the --user ...