Showing posts with label OBIA 11. Show all posts
Showing posts with label OBIA 11. Show all posts

System Columns in Oracle Business Analytics Warehouse Tables



Oracle Business Analytics Warehouse tables contain system fields. These system fields are populated automatically and should not be modified by the user. lists the system columns used in data warehouse dimension tables.
 System Columns Used in Data Warehouse Tables
System Column
Description
ROW_WID
Surrogate key to identify a record uniquely.
CREATED_BY_WID
Foreign key to the W_USER_D dimension that specifies the user who created the record in the source system.
CHANGED_BY_WID
Foreign key to the W_USER_D dimension that specifies the user who last modified the record in the source system.
CREATED_ON_DT
The date and time when the record was initially created in the source system.
CHANGED_ON_DT
The date and time when the record was last modified in the source system.
AUX1_CHANGED_ON_DT
System field. This column identifies the last modified date and time of the auxiliary table's record that acts as a source for the current table.
AUX2_CHANGED_ON_DT
System field. This column identifies the last modified date and time of the auxiliary table's record that acts as a source for the current table.
AUX3_CHANGED_ON_DT
System field. This column identifies the last modified date and time of the auxiliary table's record that acts as a source for the current table.
AUX4_CHANGED_ON_DT
System field. This column identifies the last modified date and time of the auxiliary table's record that acts as a source for the current table.
DELETE_FLG
This flag indicates the deletion status of the record in the source system. A value of Y indicates the record is deleted from the source system and logically deleted from the data warehouse. A value of N indicates that the record is active.
W_INSERT_DT
Stores the date on which the record was inserted in the data warehouse table.
W_UPDATE_DT
Stores the date on which the record was last updated in the data warehouse table.
DATASOURCE_NUM_ID
Unique identifier of the source system from which data was extracted. In order to be able to trace the data back to its source, it is recommended that you define separate unique source IDs for each of your different source instances.
ETL_PROC_WID
System field. This column is the unique identifier for the specific ETL process used to create or update this data.
INTEGRATION_ID
Unique identifier of a dimension or fact entity in its source system. In case of composite keys, the value in this column can consist of concatenated parts.
TENANT_ID
Unique identifier for a tenant in a multi-tenant environment. This column is typically be used in an Application Service Provider (ASP)/Software as a Service (SaaS) model.
X_CUSTOM
Column used as a generic field for customer extensions.
CURRENT_FLG
This is a flag for marking dimension records as "Y" in order to represent the current state of a dimension entity. This flag is typically critical for Type II slowly changing dimensions, as records in a Type II situation tend to be numerous.
EFFECTIVE_FROM_DT
This column stores the date from which the dimension record is effective. A value is either assigned by Oracle BI Applications or extracted from the source.
EFFECTIVE_TO_DT
This column stores the date up to which the dimension record is effective. A value is either assigned by Oracle BI Applications or extracted from the source.
SRC_EFF_FROM_DT
This column stores the date from which the source record (in the Source system) is effective. The value is extracted from the source (whenever available).
STC_EFF_TO_DT
This column stores the date up to which the source record (in the Source system) is effective. The value is extracted from the source (whenever available).

Standard Column Suffixes in Oracle Business Analytics Warehouse



The Oracle Business Analytics Warehouse uses suffixes to indicate fields that must contain specific values, as shown .
Standard Column Suffixes
Suffix
Description
In Table Types
_CODE
Code field.
_D, _DS, _FS, _G, _GS
_DT
Date field.
_D, _DS, _FS, _G, _DHL, _DHLS
_ID
Correspond to the _WID columns of the corresponding _F table.
_FS, _DS
_FLG
Indicator or Flag.
_D, _DHL, _DS, _FS, _F, _G, _DHLS
_WID
Identifier generated by Oracle Business Intelligence linking dimension and fact tables, except for ROW_WID.
_F, _A, _DHL
_NAME
A multi-language support column that holds the name associated with an attribute in all languages supported by the data warehouse.
_TL
_DESCR
A multi-language support column that holds the description associated with an attribute in all languages supported by the data warehouse
_TL

Internal Tables in Oracle Business Analytics Warehouse



Internal tables are used primarily by ETL mappings for data transformation and for controlling ETL runs. These tables are not queried by end users and are not directly managed by the Oracle Data Warehouse Administration Console (DAC). These tables are described in Table.
Oracle Business Analytics Warehouse Internal Tables
Name
Purpose
Location
W_DUAL_G
Used to generate records for the Day dimension.
Data warehouse
W_COSTLST_G
Stores cost lists.
Data warehouse
W_EXCH_RATE_G
Stores exchange rates.
Data warehouse
W_LOV_EXCPT_G
Stores the list of values for the list of values types in which the ETL process finds exceptions.
Data warehouse
W_UOM_CONVERSION_G
Stores a list of From and To UOM codes and their conversion rates.
Data warehouse
W_DOMAIN_MEMBER_G
Staging table for populating incremental changes into W_DOMAIN_MEMBER_G and W_DOMAIN_MEMBER_G_TL.
Data warehouse
W_DOMAIN_MEMBER_G_TL
Stores translated values for each installed language corresponding to the domain member codes in W_DOMAIN_MEMBER_G_TL.
Data warehouse
W_DOMAIN_MEMBER_GS
Stores all the domain members and value for each installed language.
Data warehouse
W_DOMAIN_MEMBER_MAP_G
Used at ETL run time to resolve at target domain code base on the value of a source domain code.
Data warehouse
W_DOMAIN_MAP_NUM_G
Used at ETL run time to resolve a target domain code based on the comparison of a numeric value within the source numeric range.
Data warehouse