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How do I search for an object by its ObjectId in the mongo console?
...h multiple object Ids just like the way we implement WHERE IN condition in mysql.
– Pratswinz
Jan 13 '16 at 12:00
This...
String isNullOrEmpty in Java? [duplicate]
...that when I tried to use StringUtils my IDE (Eclipse) imported it from com.mysql.jdbc.StringUtils which actually has an isNullOrEmpty(myStringObject) method.
ex.
import com.mysql.jdbc.StringUtils;
StringUtils.isNullOrEmpty(host)
Just another alternative for those who already have the MySQL conne...
SQL - Select first 10 rows only?
...
select top 100 * from myTable
select top 100 colA, colB from myTable
In MySQL, use:
select ... order by num desc limit 10
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PyLint “Unable to import” error - how to set PYTHONPATH?
...ule, like this:
[MASTER]
init-hook='import sys; sys.path.append("/path/to/root")'
(Or in other version of pylint, the init-hook requires you to change [General] to [MASTER])
Both of these options ought to work.
Hope that helps.
...
How do I load an org.w3c.dom.Document from XML in a string?
...me up with. It's mostly the same solution as before, augmented to get the root element down as a NodeList and using erickson's suggestion of using an InputSource instead for character encoding issues.
private String DOC_ROOT="root";
String xml=getXmlString();
Document xmlDoc=loadXMLFrom(xml);
Elem...
How do I log a Python error with debug information?
...
except ZeroDivisionError:
logging.exception("message")
Output:
ERROR:root:message
Traceback (most recent call last):
File "<stdin>", line 2, in <module>
ZeroDivisionError: integer division or modulo by zero
@Paulo Cheque notes, "be aware that in Python 3 you must call the loggin...
创建增量同步Oracle物化视图问题 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
...from t_mv_test@dblink_name;
这样，不管数据库A上的此表的主键如何变化，我一概不管。但是，有时必须要使用with primary key，例如跨库跨平台时。
物化视图对应的表上没有主键，如果需要索引可以另行添加。
最后小结一下，这个...
Rails 2.3-style plugins and deprecation warnings running task in Heroku
...Engine
alias :not_silenced_initialize :initialize
def initialize(root)
ActiveSupport::Deprecation.silence{ self.send :not_silenced_initialize, root }
end
end
end
and require it in config/application.rb just after requiring Rails:
require 'rails/all'
require File.expand_path...
How do I create a copy of an object in PHP?
...ing this, that cloning will keep reference to the original object. Running MySQL queries using the cloned object may have unpredictable results because of this, as execution may not take place in a linear fashion.
– Ælex
Mar 26 '13 at 16:30
...
How do you install Boost on MacOS?
...
if you prefer running things through root sudo -s /opt/local/bin/port install boost
– Pungs
Feb 12 '13 at 16:21
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