Add Database Manager - Native
The 'Add Database Manager (Native)' dialog helps you to define a new database manager to an existing server based repository. It is the simplest way, and the recommended method, to set up a connection to repositories in:
- Microsoft SQLServer
Using a native connection, in most cases you do not need to install any additional drivers or perform any additional steps outside of Enterprise Architect.
When the Add Database Manager (Native) screen is first opened its lower section is mostly empty:
However this area will be populated with field(s) based on the selected DBMS. In the case of local Firebird and SQLite databases the only field required is the filename, while the others typically need a Server name, Database name and user credentials. For example, the images here show a sample of the sorts of field displayed:
You will need to fill in all required fields (as denoted by the '*' character next to their label), and in most cases click on thebefore the is enabled; this is to ensure that only valid connection details are saved.
The one setting that all Database Managers have is: Alias. Its purpose is to uniquely identify a database by a single value. When clients request to connection to a database they specify the Alias (although in Enterprise Architect this value is referred as 'Model Name').
When adding a new database manager, the Alias can be specified manually or if left empty the Pro Cloud Server will assign a automatic value based on the following rules:
- Firebird definitions, the 'Alias' is the filename minus the extension
- SQLite definitions, the 'Alias' is the filename minus the extension
- all other DBMSs, the 'Alias' is a the combination of server and database name (with special characters removed)
Therefore, take care when defining database connections, to ensure that you do not create duplicate database aliases. In more recent versions of the Pro Cloud Server additional checks have been put in place to stop duplicate Aliases being defined however older versions did not impose these limits. If two or more database definitions do share the same alias, then all Enterprise Architect clients will connect to the first database found with the requested Alias.
- For compatibility reasons the original method of defining ODBC and OLE/DB database connections on the Microsoft 'Data Link Properties' dialog is still available and discussed in their own topics ( Add Database Manager (OLEDB/ODBC) ), however with the introduction of a 64 bit version of the Pro Cloud Server, additional ODBC/OLE DB drivers (and/or ODBC DSNs) will most likely be required in order for the Pro Cloud Server to connect to such databases, therefore Sparx Systems recommend Native connection due to their simplicity.