PowerDesigner创建文件时找不到DBMS列表 1.新建一文件 例:File(文件)-->New Model(新模型)-->Physical DataModel(物理数据模型)--->Physical Diagram(物理图)--->Model Name(模型名称)或DBMS(数据库管理系统) 如果改变了路径,则找不到驱动,这是需要改回默认路径,如下: 改到原有的DBMS的路径下就可以了。。
以下这张图展示了table存入到Vertica后,是怎么转变到物理存储的column形态的,即被切成了Projections。 在切分成物理存储这点上,Vertica的Database Designer会帮助选择一个合理的切分方式,这是上面提到的使用上的便利性的优势,下文还会简单提到怎样做到。 看上去,对每一个projection在多机上冗余备份存储是种浪费磁盘的做法...
Designer defines classes with attributes, methods, and relationships Class constructor method creates object instances Each object has a unique object ID Classes related by class hierarchies Database objects have persistence Both conceptual-level and logical-level model 对象关系模型 向关系模型添加新的复杂...
Designer defines classes with attributes, methods, and relationships Class constructor method creates object instances Each object has a unique object ID Classes related by class hierarchies Database objects have persistence Both conceptual-level and logical-level model 对象关系模型 向关系模型添加新的复杂...
数据库设计工具可以帮助用户进行数据库的设计和建模,如ERwin、PowerDesigner和Toad等。数据库监控工具可以帮助用户监控数据库的性能和运行状态,如Nagios、Zabbix和New Relic等。数据库备份和恢复工具可以帮助用户进行数据库的备份和恢复,如pg_dump、mysqldump和RMAN等。数据库迁移工具可以帮助用户进行数据库的迁移和转换,如...
Powerdesigner以下简称PD. PD默认支持的DBMS不够用时,我们就需要自己定义了。 以apache derby数据库为例。 1、DBMS的定义文件 PD的DBMS定义文件放在install_dir/Resource Files/DBMS目录下。自定义DBMS的第一步是复制一个现成的DBMS文件,由于derby与Oracle相似之处比较多,所以可以选择复制Oracle的DBMS文件,并重命名为de...
On April 15, 2019, FORS Telecom announced the appearance in the ecosystem of software and tools compatible with the open platform Postgres Pro/PostgreSQL of a designer of user web interfaces to databases - Live Universal Interface (LUI). Read more here. SafePhone Compatibility On March 27, 20...
Designer defines classes with attributes, methods, and relationships Class constructor method creates object instances Each object has a unique object ID Classes related by class hierarchies Database objects have persistence Both conceptual-level and logical-level model 对象关系模型 向关系模型添加新的复杂...
https://www.powerdesigner.biz/EN/ PowerDesigner DataArchitect is the industry-leading data modeling tool. It offers a model-driven approach to empower and align business and IT. PowerDesigner enables enterprises to more easily visualize, analyze, and manipulate metadata for effective enterprise info...
Database designer tools enable building graphical models and generating DDL scripts on their basis. The script describes data and relations between entities in the designed database. Furthermore, the tools enable reverse engineering (visualization of the model from the SQL script). Key factors of ...