小编Mat*_*att的帖子

我尝试使用,gem install pg但它似乎没有用.

gem install pg 给出了这个错误

Temporarily enhancing PATH to include DevKit...
Building native extensions.  This could take a while...
ERROR:  Error installing pg:
        ERROR: Failed to build gem native extension.

C:/Ruby/bin/ruby.exe extconf.rb
checking for pg_config... no
No pg_config... trying anyway. If building fails, please try again with
 --with-pg-config=/path/to/pg_config
checking for libpq-fe.h... no
Can't find the 'libpq-fe.h header
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers. …

最好的方法是:

SELECT * FROM users WHERE created >= today;

注意:created是一个日期时间字段.

问题:我有一个来自Access数据库的地址字段,该数据库已转换为Sql Server 2005.此字段包含一个字段中的所有内容.我需要将地址的各个部分解析为规范化表中的相应字段.我需要为大约4,000条记录执行此操作,并且它需要是可重复的.

假设:

1. 假设在美国的地址(现在)

2. 假设输入字符串有时包含收件人(被发送者)和/或第二个街道地址(即B组)

3. 国家可以缩写

4. 邮政编码可以是标准的5位数或zip + 4

5. 在某些情况下存在拼写错误

更新:在回答提出的问题时,标准并未普遍遵循,我需要存储个别值,而不仅仅是地理编码和错误意味着拼写错误(上面已修正)

样本数据:

• AP Croll&Son 2299 Lewes-Georgetown Hwy,Georgetown,DE 19947

• 11522 Shawnee Road,Greenwood DE 19950

• 144 Kings Highway,SW Dover,DE 19901

• 综合Const.服务2 Penns Way Suite 405 New Castle,DE 19720

• Humes Realty 33 Bridle Ridge Court,Lewes,DE 19958

• Nichols Excavation 2742 Pulaski Hwy Newark,DE 19711

• 2284 Bryn Zion Road,Smyrna,DE 19904

• VEI Dover Crossroads,LLC 1500 Serpentine Road,Suite 100 Baltimore MD 21

• 580 North Dupont Highway Dover,DE 19901

• PO Box 778 Dover,DE 19903

function doSomethingWith(param)
{
    document.body.addEventListener(
        'scroll',
        function()
        {
            document.write(param);
        },
        false
    ); // An event that I want to remove later
}
setTimeout(
    function()
    {
        document.body.removeEventListener('scroll', HANDLER ,false);
            // What HANDLER should I specify to remove the anonymous handler above?
    },
    3000
);
doSomethingWith('Test. ');

有什么区别

Object foo = "something";
String bar = String.valueOf(foo);

和

Object foo = "something";
String bar = (String) foo;

升级到JDK 1.7后,我得到以下异常:

java.lang.VerifyError: Expecting a stackmap frame at branch target 71 in method com.abc.domain.myPackage.MyClass$JaxbAccessorM_getDescription_setDescription_java_lang_String.get(Ljava/lang/Object;)Ljava/lang/Object; at offset 20
    at java.lang.Class.getDeclaredConstructors0(Native Method)
    at java.lang.Class.privateGetDeclaredConstructors(Class.java:2413)
    at java.lang.Class.getConstructor0(Class.java:2723)
    at java.lang.Class.newInstance0(Class.java:345)
    at java.lang.Class.newInstance(Class.java:327)
    at com.sun.xml.internal.bind.v2.runtime.reflect.opt.OptimizedAccessorFactory.instanciate(OptimizedAccessorFactory.java:184)
    at com.sun.xml.internal.bind.v2.runtime.reflect.opt.OptimizedAccessorFactory.get(OptimizedAccessorFactory.java:129)
    at com.sun.xml.internal.bind.v2.runtime.reflect.Accessor$GetterSetterReflection.optimize(Accessor.java:384)
    at com.sun.xml.internal.bind.v2.runtime.property.SingleElementLeafProperty.<init>(SingleElementLeafProperty.java:72)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:525)
    at com.sun.xml.internal.bind.v2.runtime.property.PropertyFactory.create(PropertyFactory.java:113)
    at com.sun.xml.internal.bind.v2.runtime.ClassBeanInfoImpl.<init>(ClassBeanInfoImpl.java:166)
    at com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl.getOrCreate(JAXBContextImpl.java:494)
    at com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl.<init>(JAXBContextImpl.java:311)
    at com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl.<init>(JAXBContextImpl.java:126)
    at com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl$JAXBContextBuilder.build(JAXBContextImpl.java:1148)
    at com.sun.xml.internal.bind.v2.ContextFactory.createContext(ContextFactory.java:130)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:601)
    at javax.xml.bind.ContextFinder.newInstance(ContextFinder.java:248)
    at javax.xml.bind.ContextFinder.newInstance(ContextFinder.java:235)
    at javax.xml.bind.ContextFinder.find(ContextFinder.java:445)
    at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:637)
    at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:584)
    at com.abc.domain.myPackage.MyClass.marshalFacetsTest(MyClass.java:73) …

当我转换为maven项目时,错误是:

> An internal error occurred during: "Updating Maven Project".
> Unsupported IClasspathEntry kind=4

有什么问题？

我认为以下两个是等价的:

named_scope :admin, lambda { |company_id| {:conditions => ['company_id = ?', company_id]} }

named_scope :admin, lambda do |company_id| 
  {:conditions => ['company_id = ?', company_id]}
end

但Ruby抱怨道:

ArgumentError: tried to create Proc object without a block

有任何想法吗？

如何通过网络使用SQL Server 2005还原数据库备份？我记得以前做过这个,但是你必须做的事情有点奇怪.

我的Team Foundation Service构建遇到了一个奇怪的问题.我把它排队并且它开始很好,但随后它失败并出现以下错误:

C:\a\src\Platform\Prod\Platform.Web\Platform.Web.csproj (436): The build restored NuGet packages. Build the project again to include these packages in the build. For more information, see http://go.microsoft.com/fwlink/?LinkID=317568.

然后我按照消息/ URL对构建重新排队,然后......再次发生.我用Google搜索过,但我似乎无法弄清问题是什么.我可以在Visual Studio中构建得很好,并且该解决方案已配置为包还原.有什么想法吗？

提前致谢.