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Generating random strings with T-SQL
If you wanted to generate a pseudorandom alphanumeric string using T-SQL, how would you do it? How would you exclude characters like dollar signs, dashes, and slashes from it?
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What's the standard way to work with dates and times in Scala? Should I use Java types or there are
What's the standard way to work with dates and times in Scala? Should I use Java types such as java.util.Date or there are native Scala alternatives?
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Generate MD5 hash string with T-SQL
Is there a way to generate MD5 Hash string of type varchar(32) without using fn_varbintohexstr
9 Answers
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How to set a default value for a datetime column to record creation time in a migration?
Consider the table creation script below:
7 Answers
7
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Min/Max of dates in an array?
How can I find out the min and the max date from an array of dates? Currently, I am creating an array like this:
11 Answers...
Ruby on Rails: How do I add a not null constraint to an existing column using a migration?
In my Rails (3.2) app, I have a bunch of tables in my database but I forgot to add a few not null constraints. I've googled around but I can't find how to write a migration which adds not null to an existing column.
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对外网用户的squid代理+认证 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...安装
1、最小化安装FreeBSD6.2RELEASE
2、配置内核：
jiulongproxynew# cd /usr/src/sys/i386/conf
jiulongproxynew# cp GENERIC funpower
jiulongproxynew# ee funpower
修改内核配置文件，将不需要的选项（如网卡）之类的前面打#，然后按esc并按a保存退出，...
Multiple line code example in Javadoc comment
I have a small code example I want to include in the Javadoc comment for a method.
15 Answers
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What's the difference between and
I've seen the wildcard used before to mean any object - but recently saw a use of:
3 Answers
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AsyncTask and error handling on Android
I'm converting my code from using Handler to AsyncTask . The latter is great at what it does - asynchronous updates and handling of results in the main UI thread. What's unclear to me is how to handle exceptions if something goes haywire in AsyncTask#doInBackground .
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