摘要: 小结: 1、block diagonal matrix 直和 块对角矩阵 A block diagonal matrix is a block matrix that is a square matrix, and having main diagonal blocks square matrice 阅读全文
posted @ 2019-03-21 16:43 papering 阅读(2382) 评论(0) 推荐(0) 编辑
摘要: 1、唯一键必须包含分区函数中的所有字段;主键是唯一键的一种; A PRIMARY KEY must include all columns in the table's partitioning function 22.6.1 Partitioning Keys, Primary Keys, and 阅读全文
posted @ 2019-03-21 10:57 papering 阅读(941) 评论(0) 推荐(0) 编辑
摘要: # https://dev.mysql.com/doc/refman/5.6/en/partitioning-columns-range.html'''CREATE TABLE employees ( id INT NOT NULL, fname VARCHAR(30), lname VARCHAR(30), hired DATE NOT NULL DEFAULT '1... 阅读全文
posted @ 2019-03-21 10:41 papering 阅读(2525) 评论(0) 推荐(0) 编辑
摘要: https://dev.mysql.com/doc/refman/8.0/en/partitioning-subpartitions.html 阅读全文
posted @ 2019-03-21 09:25 papering 阅读(216) 评论(0) 推荐(0) 编辑