SAP ABAP Data Element ALPDBRTYP (Aggregation and Resolution of a CPH Data Record)

Hierarchy

☛ SAP_BASIS (Software Component) SAP Basis Component
   ⤷ BC-CCM-MON (Application Component) Monitoring
     ⤷ SMOI (Package) CCMS: Monitoring Architecture

Basic Data

Data Element	ALPDBRTYP
Short Description	Aggregation and Resolution of a CPH Data Record

Data Type

Category of Dictionary Type	D	Domain
Type of Object Referenced		No Information
Domain / Name of Reference Type	CHAR6
Data Type	CHAR	Character String
Length	6
Decimal Places	0
Output Length	6
Value Table

Further Characteristics

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Parameter ID
Default Component name
Change document	☐
No Input History	☐
Basic direction is set to LTR	☐
No BIDI Filtering	☐

Field Label

	Length	Field Label
Short	10	RecordType
Medium	19	Aggreg./Resoltn
Long	25	Aggregation/Resolution
Heading	0

Documentation

Definition

All Central Performance History (CPH) data is characterized by its resolution and its aggregate.

• The resolution (minute, quarter-hour, hour, or day) specifies the proportion of a day over which the performance values are averaged.
• The aggregate (day, X days, week, month, quarter, or year) specifies the number of days over which the above fractions of a day are averaged.

Use

In the CPH, aggregation is primarily used to reduce the database's memory requirements. Collected performance values are only stored for a defined period of time in the CPH, before they are aggregated and the original data is deleted. Information loss is inevitably connected with each aggregation; without aggreation, however, the space requirement of the CPH would grow beyond all limits in the long term.

Dependencies

Example

A weekly aggregate with hourly resolution contains 24 hourly mean values, in each of which the values from an hour (such as 12:00 to 13:00) are aggregated from the 7 days of the week into one value.

History

Last changed by/on	SAP	20040312
SAP Release Created in