The current table sizes are determined by a report and saved in a database table which forms the history of table sizes and table growth. You can view, among other things, the statistical data in the Table Size user menu.
Determining Statistical Data
If necessary, you will have to determine the statistics data for the tables.
You have the following options:
Schedule the action Update Table Statistics in the DBA planning calendar every week.
The database must be in the ONLINE operational state at the time of executing the task. To schedule the action Update Statistics Tables proceed as described in Scheduling an Action.
You can also update the table statistics once in the Database Assistant or liveCache Assistant.
The database must be in the ONLINE operational state at the time of executing the task. Choose the function Update Table Statistics in the user menu to start the background job that updates the statistics.
The system determines the table sizes and their growth. The system determines the index sizes. The runtime depends on the fill level of the database instance and the number of tables you are analyzing. The measurement data is logged in the following areas:
The measurement data from the tables can be viewed in the Database Assistant/liveCache Assistant in the Table Sizes menu.
The measurement data from the tables and their indexes can be either printed out or downloaded for other provider's tools.
Table ADATABSIZE (only for the basis database of the SAP system):
You can use the SQL Studio database tool to access the measurement data and the indexes in the ADATABSIZE table directly.
Displaying Table Size
Once the statistical data has been determined, you can display it as follows:
The display is part of the DBA Cockpit and can therefore also be called as follows:
Open DBA Cockpit (transaction DBACOCKPIT).
The display options in DBA Cockpit vary depending on which SAP NetWeaver release you are using.
SAP NetWeaver 7.1: Choose .
You can choose from the following displays:
Tables with Greatest Growth
You can set the comparison time period, comparison interval, and the number of tables displayed.
You can set the date and number of tables displayed.
Growth of a Table
You can set the table name and the display period.
You can display all statistics as graphics. The following functions are available:
Delete Statistics Data
You can delete statistics data manually by specifying a time period/date or automatically by specifying a time period (in weeks).
Update Table Statistics
Note that table statistics information is saved only once a day. Any older daily statistics are overwritten.