大约有 40,000 项符合查询结果（耗时：0.0292秒） [XML]
Why should I use document based database instead of relational database?
...number, supplier number, order number, keep on file until, OCRed fulltext, etc). Usually you do not know in advance which metadata fields you will add within the next two years.
Things like CouchDB work much nicer for that kind of data than relational databases.
I also personally love the fact that...
Storing money in a decimal column - what precision and scale?
...or domain expert about accounting rules which may be applicable: GAAP, EU, etc. I vaguely recall some EU intra-state transfers with explicit rules for rounding to five decimal places, therefore using DECIMAL(p, 6) for storage. Accountants generally seem to favour four decimal places.
PS Avoid SQL...
How to get the name of the current method from code [duplicate]
... helper method:
[MethodImpl(MethodImplOptions.NoInlining)]
public string GetCurrentMethod()
{
var st = new StackTrace();
var sf = st.GetFrame(1);
return sf.GetMethod().Name;
}
Updated with credits to @stusmith.
...
What is Full Text Search vs LIKE
...he term. Full text search is optimized to compute the intersection, union, etc. of these record sets, and usually provides a ranking algorithm to quantify how strongly a given record matches search keywords.
The SQL LIKE operator can be extremely inefficient. If you apply it to an un-indexed column...
How do I get bash completion to work with aliases?
...ly! Step 1) Copy git-completion.bash from <your git install folder>/etc/bash-completion.d/ to ~/.git-completion.bash Step 2) add source ~/.git-completion.bash to your .bash_profile Step 3) Add __git_complete gco _git_checkout anywhere after the above line in your .bash_profile. Step 4) Rebo...
Android “Only the original thread that created a view hierarchy can touch its views.”
...tivity object. I had to do something like myActivityObject.runOnUiThread(etc)
– Kirby
Feb 17 '12 at 21:27
...
Why do people say that Ruby is slow? [closed]
...Nginx, SQLite, MySQL, PostgreSQL, many parsing libraries, RMagick, TCP/IP, etc are C programs used by Ruby. Ruby provides the glue and the business logic.
What are your options as a Ruby
programmer if you want to deal with
this "slowness"?
Switch to a faster language. But that carries a c...
User recognition without cookies or local storage
...verse Geocoding
Architecture, OS Language, System Time, Screen Resolution, etc.
Network Information API
Battery Status API
The items I listed are, of course, just a few possible ways a user can be identified uniquely. There are many more.
With this set of Random Data elements to build a Data Pro...
[解决]MySql提示:The server quit without updating PID file(…)失败 - 数...
...rekfan.com/?p=186
4.mysql在启动时没有指定配置文件时会使用/etc/my.cnf配置文件，请打开这个文件查看在[mysqld]节下有没有指定数据目录(datadir)。
解决方法：请在[mysqld]下设置这一行：datadir = /usr/local/mysql/data
5.skip-federated字段问题
...
Automatically update version number
...eflection.Assembly.GetExecutingAssembly();
object[] attributes = assembly.GetCustomAttributes(typeof(System.Reflection.AssemblyFileVersionAttribute), false);
object attribute = null;
if (attributes.Length > 0)
{
attribute = attributes[0] as System.Reflection.AssemblyFileVersionAttribute;
}
...