The database statistics are used by the system to optimize the query performance. You should keep the database statistics up-to-date for this reason.
It is recommended that you always update the statistics if you have loaded more than a million new records into the InfoCube since the last update.
You can automatically recalculate the database statistics after each load or after each delta upload.
Using the pushbutton Check Statistics, you can check the InfoCube to see if statistics exist. If no statistics exist yet, the status display changes to red. Using Recalculate Statistics, you can add the missing InfoCube statistics in the background.
You can determine the percentage of InfoCube data that is used to create the statistics. The percentage is set to 10% by default. The larger the InfoCube, the smaller you should choose the percentage, since the demand on the system for creating the statistics increases with the change in size.
Note
For up to 10 million entries in the InfoCube, you should set the percentage of InfoCube data, that is used for creating the statistics, to 100%.

Ага, спасибо большое! А вот интересно каково процентное соотношение?Получается если на 10 000 000 записей - 100%, то на 1 000 000 - 10%!Наверное как-то так. Спасибо Вам большое!