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.
If necessary, you will have to determine statistical data.
You have the following options:
· Schedule the action update table statistics in the DBA planning calendar every week.
The database instance must be in the operational state ONLINE 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 instance must be in the operational state ONLINE at the time of executing the task. Choose the function Table Statistics in the user menu Statistics ® Table Sizes to start a background job that updates the statistics.
The system determines the table sizes and growth. The index sizes are determined.
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:
· Table SDBCCMS
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 instance of the SAP system)
You can use the SQL Studio database tool to access the measurement data and the indexes in the table ADATABSIZE directly.
Once the statistical data has been determined, you can display it as follows:
2. Choose Statistics ® Table Sizes.
You can choose from the following displays:
· Tables with Greatest Growth
You can set the comparison period, comparison interval, and the number of tables displayed.
· Largest Tables
You can set the date and the number of the tables displayed.
· Growth of a Table
You can set the name of the table and the display period.
You can display all statistics as graphics.
The following functions are available:
· Delete Statistics Data
Deletion can be done manually by specifying a time period/date or automatically by specifying a time period (in weeks).
· Update Table Statistics
Note that the table statistics information is saved only once a day. Older daily statistics, if any, are overwritten.