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Django操作model时,报错:AttributeError:’ProgrammingError’ object has no attribute ‘__traceback__’
原因:在Django项目下相应的应用下面的models.py配置的model(也就是class)没有创建成相应的表。          这是怎么回事呢?        首先,将models.py里面的model创建成对应的数据库表的执行命令(DOS命令)为:manage.py syncdb。       但是我自己的电脑上执行该命令时,显示.Unknown command:syncdb.执行...
分类:其他好文   时间:2015-03-19 23:59:59    阅读次数:374
OGG-03510问题处理
OGG迁移,目标端已经升级为12C,所以用的12版本的OGG,参数还是用的以前11g的,但是启动应用进程的时候提示OGG-03510错误,如下: The source database character set is unknown, and the SOURCECHARSET parameter is not specified. 源端是sqlserver环境,之前源端是oracle环...
分类:其他好文   时间:2015-03-19 16:19:46    阅读次数:161
解决Eclipse 项目报错:Unbound classpath container
Eclipse出现下面两条报错:The project cannot be built until build path errors are resolved HelloWord Unknown Java ProblemUnbound classpath container: 'JRE Syste...
分类:系统相关   时间:2015-03-19 13:09:57    阅读次数:281
Search in Rotated Sorted Array
Suppose a sorted array is rotated at some pivot unknown to you beforehand. (i.e., 0 1 2 4 5 6 7 might become 4 5 6 7 0 1 2). You are given a target value to search. If found in the array return ...
分类:其他好文   时间:2015-03-18 10:38:01    阅读次数:125
[Leetcode]Find Minimum in Rotated Sorted Array
Suppose a sorted array is rotated at some pivot unknown to you beforehand.(i.e.,0 1 2 4 5 6 7might become4 5 6 7 0 1 2).Find the minimum element.You m...
分类:其他好文   时间:2015-03-17 23:33:11    阅读次数:149
Android信号强度计算方式
GSM的计算方式:A:这个是GSM的,LTE的是否应该有所不同。ASU转换成dBm:dBm=-113+(2*ASU)All*GettheGSMSignalStrength,validvaluesare(0-31,99)asdefinedinTS*27.0078.5if(asu<=2||asu==99)level=SIGNAL_STRENGTH_NONE_OR_UNKNOWN(0);elseif(asu>=12)level=SIGNAL_STRE..
分类:移动开发   时间:2015-03-17 14:23:15    阅读次数:2237
Find Minimum in Rotated Sorted Array
Suppose a sorted array is rotated at some pivot unknown to you beforehand.(i.e.,0 1 2 4 5 6 7might become4 5 6 7 0 1 2).Find the minimum element.You m...
分类:其他好文   时间:2015-03-16 23:07:35    阅读次数:221
UVA - 753 A Plug for UNIX
Time Limit: 3000MS   Memory Limit: Unknown   64bit IO Format: %lld & %llu Submit Status Description You are in charge of setting up the press room for the inaugural meeting...
分类:其他好文   时间:2015-03-16 21:22:49    阅读次数:232
LeetCode -- Search in Rotated Sorted Array(Binary Search)
题目地址:https://leetcode.com/problems/search-in-rotated-sorted-array/Suppose a sorted array is rotated at some pivot unknown to you beforehand.(i.e., 0 1 2 4 5 6 7 might become 4 5 6 7 0 1 2).You are give...
分类:其他好文   时间:2015-03-16 17:48:11    阅读次数:97
Python解析xml文件遇到的编码解析的问题
使用python对xml文件进行解析的时候,如果xml文件的头文件是utf-8格式的编码,那么解析是ok的,但如果是其他格式将会出现如下异常: xml.parsers.expat.ExpatError: unknown encoding 因此,为了保证程序的正常运行,我们需要对读取的文件进行编码处理。 1、首先将读取的字符从原来的编码解析,并编码成utf-8; 2、修改xml的...
分类:编程语言   时间:2015-03-16 16:30:51    阅读次数:129
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