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A transport-level error has occurred when receiving results from the server [closed]
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Ora-00257 错误处理一列 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
...列sqlplus assysdba报错ORA-12162切回系统确认系统当前的ORACLE_HOME和ORACLE_SID环境变量[oracle@asdlabdb01~]$echo$ORACLE_HOME空的[oracle...sqlplus /as sysdba
报错ORA-12162
切回系统
确认系统当前的ORACLE_HOME和ORACLE_SID环境变量
[oracle@asdlabdb01 ~]$ echo $ORA...
Doctrine and composite unique keys
...niqueness) Doctrine documentation contains some nice examples by this url: http://docs.doctrine-project.org/projects/doctrine-orm/en/latest/tutorials/composite-primary-keys.html
So the original example could look something like this:
/**
* @var string $videoDimension
*
* @ORM\Id @ORM\Column(typ...
How to do relative imports in Python?
...answering the question.
The problem is that you're running the module as '__main__' by passing the mod1.py as an argument to the interpreter.
From PEP 328:
Relative imports use a module's __name__ attribute to determine that module's position in the package hierarchy. If the module's name does...
Check if a user has scrolled to the bottom
...buggy, if you do a console.log() instead of alert it sometimes repeats the command.
– Jürgen Paul
Aug 27 '12 at 12:37
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Pythonic way to find maximum value and its index in a list?
...many options, for example:
import operator
index, value = max(enumerate(my_list), key=operator.itemgetter(1))
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How can I check if an ip is in a network in Python?
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Continuing on Rafal's comment, to get this to work on a 64-bit Python interpreter, replace the line in question with: return struct.unpack('<L',socket.inet_aton(ip))[0]
– nitwit
Jan 22 '12 at 9:24
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How do you copy and paste into Git Bash
...ou have to enable Properties -> Option tab -> Quick Edit Mode)
Ref: http://blogs.windows.com/buildingapps/2014/10/07/console-improvements-in-the-windows-10-technical-preview/
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Openssl is not recognized as an internal or external command
... be integrated with Facebook. In one of Facebook's tutorials, I found this command:
15 Answers
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How to implement has_many :through relationships with Mongoid and mongodb?
...a related collection via another it would still require multiple queries.
https://github.com/mongoid/mongoid/issues/544
Normally if you have a many-many relationship in a RDBMS you would model that differently in MongoDB using a field containing an array of 'foreign' keys on either side. For examp...