There are additional prerequisites for enabling BW analysis depending on the system type:
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- SAP BW release: 7.00 - 7.50
- SAP_BASIS and SAP_BW components installed.
- Turned on collection of standard OLAP statistics in the system.
- Turned on collection of DVD statistics in the system (recommendation is to collect statistics at least for two weeks before first collectors are executed). See bellow the section for more details.
- In case you are using ORACLE DB as your system database, you need to make sure DB statistics are up to date on all tables required by collectors else otherwise these will won't be not executed.
User authorization
For proper initial setup user you need to have an access to following transactions: SE16, RSRT, SLG1 which are not included in administrator authorization role /DVD/MON_ADMIN.
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| Step | Details |
|---|---|
Go to transaction /DVD/QS_CONF | |
Screen for setting up configuration is displayed. |
Insights Extended Query statistics configuration screen |
Click on 'ON' radio button for 'Query statistics enabled' to turn the collection of statistics on. User information collected can be turned on optionally (If this setting is turned on, the information about which user executed the query is captured). | |
| Confirm the change of configuration by clicking on 'Save config' button (or using F8 key). | |
| Confirmation dialog is displayed. |
Change configuration confirmation dialog |
| Click on 'Yes' button to confirm the change of configuration. |
Same steps apply also for turning off the statistics. To turn collection of statistics off only difference is to click on 'OFF' radio button in step 4.
Additional collection options
Click on 'Select infoprovidersInfoProviders' button. Dialog window is displayed where user you can restrict for which InfoProviders should be statistics collected. If no InfoProviders are specified in the table (initial state), statistics will be collected for the whole system. You can always disable collecting of statistics for specific InfoProvider by deselecting 'Enabled' column or removing them from the list. It is important to note that once the Infoprovider InfoProvider selection is used, statistics will be collected only for those with "Enabled" flag one. For not specified Infoproviders in the list, statistics will not won't be collected.
Restrict query statistics collection
Click on "Exclude characteristics" button to display select option for characteristics exclusion. In this window user you can define which characteristic filter values should not be saved when queries are executed. This option should be used only when necessary to reduce the amount of data saved in the statistics table (useful for huge hierarchy selections) as it reduces completeness of statistics.
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It is possible to schedule enabling of statistics on regular basis if requested. For this purpose report '/DVD/QS_CONFIG_SCHEDUL' (transaction /DVD/QS_SCHED) is provided. You can create two standard report variants for this report.
Scheduling of DVD extended query statistics collection
In the first variant you specify checkbox as marked checked while in the second variant this checkbox would be unmarkedunchecked. You can then schedule execution of this report with the first variant every morning through a standard SAP report scheduling functionality. This would cause statistics collection to be turned on every morning. Then you would schedule execution of this report with the second variant every midnight to turn off the statistics collection.
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After the statistics are enabled in a system by using steps specified in Turning on/off collection of statistics section, it is recommended to validate their functionality. To validate them, follow the following these steps:
- Go to transaction RSRT and choose random Query with filtering options.
- Click on 'Execute + Debug' button to display query execution options.
- In the list of settings mark check the checkbox next to 'Do Not Use Cache' option.
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4. Click on Continue (or use Enter Key) to execute the query (in next screen that is query dependent, fill at least one filter).
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8. In following screen with a table content you should see at least one row with the information about the query just executed through RSRT transaction.
Captured information about executed query
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11. In following screen with a table content you should see at least one row with the information about used filter in executed query (if you chose such query with filters and specified some).
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If any information is captured after DVD statistics were enabled in the system and query was executed, the validation is done.