PowerDesigner supports all the objects necessary to build physical diagrams.
|
Object |
Tool |
Symbol |
Description |
|---|---|---|---|
|
Table |
|
 |
Collection of rows (records) that have associated columns (fields). See Tables (PDM). |
|
Column |
[none] |
[none] |
Data structure that contains an individual data item within a row (record), model equivalent of a database field. See Columns (PDM). |
|
Primary key |
[none] |
[none] |
Column or columns whose values uniquely identify each row in a table, and are designated as the primary identifier of each row in the table. See Primary, Alternate, and Foreign Keys (PDM). |
|
Alternate key |
[none] |
[none] |
Column or columns whose values uniquely identify each row in a table, and which is not a primary key. See Primary, Alternate, and Foreign Keys (PDM). |
|
Foreign key |
[none] |
[none] |
Column or columns whose values depend on and migrate from a primary or alternate key in another table. See Primary, Alternate, and Foreign Keys (PDM). |
|
Index |
[none] |
[none] |
Data structure associated with one or more columns in a table, in which the column values are ordered in such a way as to speed up access to data. See Indexes (PDM). |
|
Default |
[none] |
[none] |
[certain DBMSs] A default value for a column. See Defaults (PDM). |
|
Domain |
[none] |
[none] |
Defines valid values for a column. See Domains (CDM/LDM/PDM). |
|
Sequence |
[none] |
[none] |
[certain DBMSs] Defines the form of incrementation for a column. See Sequences (PDM). |
|
Abstract data type |
[none] |
[none] |
[certain DBMSs] User-defined data type. See Abstract Data Types (PDM). |
|
Reference |
|
 |
Link between a primary or an alternate key in a parent table, and a foreign key of a child table. Depending on its selected properties, a reference can also link columns that are independent of primary or alternate key columns. See References (PDM). |
|
View |
|
 |
Data structure that results from a SQL query and that is built from data in one or more tables. See Views (PDM). |
|
View Reference |
|
|
Link between a table and a view. See View References (PDM). |
|
Trigger |
[none] |
[none] |
A segment of SQL code associated with a table or a view. See Triggers (PDM). |
|
Procedure |
|
 |
Precompiled collection of SQL statements stored under a name in the database and processed as a unit. See Stored Procedures and Functions (PDM). |
|
Database |
[none] |
[none] |
The database of which the PDM is a representation. See Database Properties (PDM). |
|
Storage |
[none] |
[none] |
A partition on a storage device. See Tablespaces and Storages (PDM). |
|
Tablespace |
[none] |
[none] |
A partition in a database. See Tablespaces and Storages (PDM). |
|
User |
[none] |
[none] |
A person who can log in or connect to the database. See Users, Groups, and Roles (PDM). |
|
Role |
[none] |
[none] |
A predefined user profile. See Users, Groups, and Roles (PDM). |
|
Group |
[none] |
[none] |
Defines privileges and permissions for a set of users. See Users, Groups, and Roles (PDM). |
|
Synonym |
[none] |
[none] |
An alternative name for various types of objects. See Synonyms (PDM). |
|
Web service |
[none] |
[none] |
Collection of SQL statements stored in a database to retrieve relational data in HTML, XML, WSDL or plain text format, through HTTP or SOAP requests. See Web Services (PDM). |
|
Web operation |
[none] |
[none] |
Sub-object of a Web service containing a SQL statement and displaying Web parameters and result columns. See Web Operations (PDM). |