ORA-39257: Data cannot be remapped for more than 10 columns. 前言 还是脱敏数据相关的事情. 使用expdp的remap_data参数对指定列进行一定规则转换后,如果指定转换的列超过10列,则报错ORA-39257. ORA-39001: invalid argument value ORA-39257: Data cannot be remapped for more than 10 columns. 注意:这是一个BUG,可以用补丁…
C and SQL data types for ODBC and CLI This topic lists the C and SQL data types for ODBC and CLI applications. C data types for ODBC applications You can pass the following C data types when you bind result set columns and parameters from ODBC appl…
原文地址:http://www.javacodegeeks.com/2015/07/mysql-vs-mongodb.html 1. Introduction It would be fair to say that as IT professionals we are living in the golden age of data management era. As our software systems become more complex and more distributed,…
How much training data do you need? //@樵夫上校: 0. 经验上,10X规则(训练数据是模型参数量的10倍)适用与大多数模型,包括shallow network. 1.线性模型可以应用10X的经验规则,模型参数是特征选择后的数量(PCA等方法).2.NN可以将10X规则当做训练数据量的下限. The quality and amount of training data is often the single most dominant factor t…
With Power BI Desktop, you can connect to all sorts of different data sources, then combine and shape them in ways that facilitate making interesting, compelling data analysis and visualizations. In this tutorial, you'll learn how to combine data fro…
To sort the data in Angular 1. Use orderBy filter {{ orderBy_expression | orderBy : expression : reverse}} Example : ng-repeat="employee in employees | orderBy:'salary':false" 2. To sort in ascending order, set reverse to false 3. To sort in…
