Hierarchy

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Basic Data
Data Element | S_PCO_CACHE_MODE |
Short Description | PCo: Cache Mode |
Data Type
Category of Dictionary Type | D | Domain |
Type of Object Referenced | No Information | |
Domain / Name of Reference Type | S_PCO_CACHE_MODE | |
Data Type | NUMC | Character string with only digits |
Length | 1 | |
Decimal Places | 0 | |
Output Length | 1 | |
Value Table |
Further Characteristics
Search Help: Name | ||
Search Help: Parameters | ||
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 | Cache Mode |
Medium | 15 | Cache Mode |
Long | 20 | Cache Mode |
Heading | 15 | Cache Mode |
Documentation
Definition
Specifies the cache mode that is passed on by PCo. You define the cache mode for an agent instance on the Tag Query tab page in the PCo console.
Use
You can define the following cache modes in PCo:
- None
With this setting, the memory is empty. All data is retrieved directly from the data source during the querying. With this setting, performance is poorest.
- Demand
With this setting, tags and metadata are queried on demand and added to the internal cache.
- Alias
You use this setting if you have previously created an alias for the source system. An alias is a user-defined structure for tags, metadata, and secondary elements. The alias is loaded when the agent is started. Use of an alias is the recommended approach.
- Cache
With this setting, all tags from the data source are queried and stored in the memory. Metadata is retrieved if a tag is requested.
Dependencies
Example
History
Last changed by/on | SAP | 20110908 |
SAP Release Created in | 703 |