How to check db statistics in sap?

How to check db statistics in sap?

Update Database Statistics with SAP BRTOOLS

1. Connect to BRTOOLS via ora.
2. Select 7 for Database statistics.
3. Select 1 to Update database statistics.
4. This page is the main options for update statistic.
5. This page is the additional options for update statistics.
6. This step is to check the statistics.

What is DB statistics in SAP BW?

Database Statistics : The database statistics are used by the system to optimize the query performance. It is recommended to use the process type within process chains to build up statistics on the Infocube tables. You can automatically recalculate the database statistics after each load or after each delta upload.

How to update db statistics in sap?

You can update statistics using one of the following methods:

1. DBA Planning Calendar in the Computing Center Management System (CCMS) For more information, see Update Statistics for the Cost-Based Optimizer in CCMS (Oracle). The DBA Planning Calendar uses the BRCONNECT commands.
2. BRCONNECT, as described here.

What is database statistics in SAP?

To figure out for a given SQL statement how much data will be processed, the database needs information about the data that is stored in the database. These information are the “database statistics” (sloppy term).

How do I view stats in SAP?

Procedure

1. Choose Administration CCMS DB Administration Cost-based optimizer Create statistics . Alternatively, call transaction DB20.
2. Enter the name of the table in Table (do not enter a generic name or pattern) and choose Refresh information to display information about current table statistics.

What is update statistics in SAP?

Use. By running update statistics regularly, you make sure that the database statistics are up-to-date, so improving database performance. You can schedule the checks in the Computing Center Management System (CCMS) of the SAP System, using the DBA Planning Calendar.

What is performance tuning SAP BW?

Performance tuning in BW can be done mainly in three different stages: modelling, extraction and reporting. Each of these areas is important for smooth functioning of the a data warehouse.

What is housekeeping in SAP BW?

The ABAP Task Manager provides you with a task list for BW housekeeping. Running the SAP_BW_HOUSEKEEPING task list on a regular basis makes it easier for you to perform the recommended housekeeping activities in the BW system. Related Information. Housekeeping – Optimizing Data Retention.

How do you update table stats in SAP?

Procedure

1. Choose Administration CCMS DB Administration Cost-based optimizer Create statistics.
2. Enter the name of the table in Table (do not enter a generic name or pattern) and choose Refresh information to display information about current table statistics.

How do I view table statistics in SAP?

How do you check table stats in SAP?

How do you run statistics in SAP?

You can implement BRCONNECT parallel processing as follows:

1. Command call brconnect -f stats -p
2. Parameter stats_parallel_degree in the init.sap file. Example. Here are some examples: brconnect -c -u / -f stats -p 4. stats_parallel_degree = 4.

How to check database statistics in SAP BW?

You can automatically recalculate the database statistics after each load or after each delta upload. Using the pushbutton Check Statistics under Performance tab, you can check the InfoCube to see if statistics exist. If no statistics exist yet, the status display changes to red.

How does BW statistics work in SAP Bex?

BW statistics allow you to record runtime data for BW processes and events in SAP BEx, Analytic Engine and in the Data Warehouse. The system records performance-intensive processing steps (known as statistics events).

How to delete data in SAP BW systems?

To delete data, call transaction RSA1, choose ‘Tools’ –> ’Settings for BI statistics and select delete statistical data. The time period for data, can be entered in the following screen. For the BPS statistic table UPC_STATISTIC*, the deletion of records older than x days can be done in the transaction BPS_STAT0

How to perform performance tuning in SAP BW systems?

• Run ABAP ‘SAP_ANALYZE_ALL_INFOCUBES’ once in a week to collect good SAP statistics for Infocubes. • Run periodically the FM ‘RSDDCVER_DB_STATISTICS’ to calculate database statistics for an Infocube. • Use transaction RSRV (and RSRVALT) on a regular basis to check Infocubes.