use INFORMATION_SCHEMA; SELECT TABLE_NAME,COLUMN_NAME,CONSTRAINT_NAME, REFERENCED_TABLE_NAME, REFERENCED_COLUMN_NAME FROM KEY_COLUMN_USAGE WHERE REFERENCED_TABLE_NAME = '表名';
RETE算法是一种产生式规则(production rule)快速匹配算法 已经被广泛应用于许多方面 下面两篇是了解RETE算法的经典文献,尤其是Doorenbos的博士论文,介绍的很清楚 @PHDTHESIS{Doo95, author = {Doorenbos, Robert B.}, title = {Production Matching for Large Learning Systems}, sch ...
Hinton diagrams provide a qualitative display of the values in a data matrix/vector. The area occupied by a square is proportional to a value's magnitude, and the color (black or white in this case) indicates its sign (positive/negative). Hinton图的一个例子如下图所示: 生成上图的Python代码为 ...