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SSIS连接Oracle问题汇总
一、未安装Oracle客户端 错误提示:Test connection failed because of an error in initializing provider. 未找到 Oracle 客户端和网络组件。这些组件是由 Oracle 公司提供的,是 Oracle 7.3.3 版(或更高) ...
分类:数据库   时间:2018-11-21 16:10:21    阅读次数:1611
EF:无法检查模型兼容性,因为数据库不包含模型元数据。
Model compatibility cannot be checked because the database does not contain model metadata. Model compatibility can only be checked for databases crea ...
分类:数据库   时间:2018-11-20 20:17:46    阅读次数:776
trufflesuite/truffle-hdwallet-provider
https://github.com/trufflesuite/truffle-hdwallet-provider/blob/master/index.js 实现代码 truffle-hdwallet-provider/index.js 使用: 安装: 返回: 就成功生成了m/44'/60'/0'/ ...
分类:其他好文   时间:2018-11-20 11:30:32    阅读次数:188
/usr/bin/applydeltarpm not installed问题解决
yumupdate遇到问题:DeltaRPMsdisabledbecause/usr/bin/applydeltarpmnotinstalled.解决办法此问题安装Deltarpm包(增量RPM套件)即可解决,当然您也可以先使用一下命令,查看是哪个包提供applydeltarpmyumprovides‘*/applydeltarpm‘yuminstalldeltarpm-yyumprovides‘
分类:移动开发   时间:2018-11-18 23:47:51    阅读次数:3324
CentOS启动docker1.13失败(Job for docker.service failed because the control process exited with error code. See "systemctl status docker.service" and "journalctl -xe" for details.)
一、启动失败 1.启动docker [root@localhost ~]# systemctl start docker Job for docker.service failed because the control process exited with error code. See "sy ...
分类:其他好文   时间:2018-11-18 13:10:18    阅读次数:616
The cast to value type 'System.Decimal' failed because the materialized value is null. Either the result type's generic parameter or the query must use a nullable type.
出现这种错误是因为没有获取到数据造成的,可以使用三元判断来操作,注意Sum里的Qty应该可以为空,如果为空则返回0,否则正式返回。 ...
分类:其他好文   时间:2018-11-16 13:31:25    阅读次数:223
linux 启动rabbitmq 报错:
linux 启动rabbitmq 报错: Job for rabbitmq-server.service failed because the control process exited with error code. See "systemctl status rabbitmq-server. ...
分类:系统相关   时间:2018-11-12 15:43:23    阅读次数:497
HDU 2955 Robberies
Robberies The aspiring Roy the Robber has seen a lot of American movies, and knows that the bad guys usually gets caught in the end, often because the ...
分类:其他好文   时间:2018-11-12 00:22:10    阅读次数:188
786. K-th Smallest Prime Fraction
A sorted list A contains 1, plus some number of primes. Then, for every p < q in the list, we consider the fraction p/q. What is the K-th smallest fra ...
分类:其他好文   时间:2018-11-09 20:52:52    阅读次数:296
小猪分配 , 最大流
Mirko works on a pig farm that consists of M locked pig-houses and Mirko can't unlock any pighouse because he doesn't have the keys. Customers come to ...
分类:其他好文   时间:2018-11-09 00:50:12    阅读次数:179
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