Database Configuration tab (HsqlDbDatabase)
An HSQL database is a relational database management system written in Java. It has a JDBC driver and supports a large subset
of SQL-92 and SQL:2008 standards. (Wikipedia). This tab is available in a controller station.
Figure 341. HsqlDbDatabase properties
You access this view from the main menu by clicking , followed by clicking the HsqlDbDatabase tab.
In addition to the standard properties (Status, Enabled, Fault Cause, Health, and Alarm Source Info), these properties support an HSQL database.
| Property | Value | Description |
|---|---|---|
| User Name | read-only | Defines the user name credential with which to log in to the database. |
| Password | read-only | Defines the password credential required to log in to the database. |
| Base Directory | read-only | Defines the path that points to the location of the database. A typical configuration uses a folder file space directly under
the station. For example, if the folder is named hsqldb, the path would be: file:^hsqldb.
|
| Database Name | read-only | Defines the name of the database to connect to. If the database does not already exist, the system creates it when you save
the property sheet with a completed Base Directory and Database Name.
|
| Defrag on Save | true or false (default)
|
Configures the system to remove blank records in the database when you save it. Removing blank records can take time. Based on your use of the system, you should establish a regular time to defragment the database. Other backups can be performed without defragmentation to save time. |