--- title: BG_Appearance description: BG_Appearance records whether a business key or relationship was present in a load of a record tracking satellite. --- [Skip to content](https://knowledge.bigenius-x.com/bg_appearance#main-content) [Contact us](https://knowledge.bigenius-x.com/kb-tickets/new?hsLang=en) [Go to Customer Portal](https://knowledge.bigenius-x.com/customer-portal?hsLang=en) [![TRI\_Logo\_biGENIUS\_2020\_RGB\_s](https://knowledge.bigenius-x.com/hs-fs/hubfs/Marketing/TRI_Logo_biGENIUS_2020_RGB_s.png?width=150&height=42&name=TRI_Logo_biGENIUS_2020_RGB_s.png)](https://www.bigenius-x.com/) Open main navigation Close main navigation - [Contact us](https://knowledge.bigenius-x.com/kb-tickets/new) - [Go to Customer Portal](https://knowledge.bigenius-x.com/customer-portal) How can we help you? - There are no suggestions because the search field is empty. 1. [biGENIUS-X Knowledge Base](https://knowledge.bigenius-x.com/?hsLang=en) 2. [Generators](https://knowledge.bigenius-x.com/generators?hsLang=en) 3. [Default Terms](https://knowledge.bigenius-x.com/generators?hsLang=en#default-terms) # BG\_Appearance **Applies to** Platform: Microsoft SQL Server · Snowflake · Snowflake dbt · Databricks · Databricks dbt · Fabric Lakehouse · Fabric Warehouse · Oracle Architecture: Data Vault `BG_Appearance` records whether a business key or relationship was present in a load of a record tracking satellite. Each load adds one row per key in the source, with the load timestamp as `BG_ValidFromTimestamp`. ### Objects that carry it Record Tracking Satellite, Record Tracking Link Satellite and Record Tracking Business Link Satellite. Every object of these types gets the term when it is created. The generator fills the value. ### Value - A key that is in the source of the load: the Source view sets `1`, or `true` on Databricks, Databricks dbt, Fabric Lakehouse and Snowflake dbt. - A key that is missing from the load, Microsoft SQL Server: with [Delete Detection Method](https://knowledge.bigenius-x.com/delete-detection-method?hsLang=en) `FullSet` it gets a row with `0` in every load until it is delivered again. With `None` it gets no row. ### Data type - Microsoft SQL Server, Fabric Warehouse: `bit` - Oracle: `NUMBER(1)` - Snowflake, Snowflake dbt: `BOOLEAN` - Databricks, Databricks dbt, Fabric Lakehouse: `boolean` ### Example A Record Tracking Satellite on Microsoft SQL Server tracks customer 940, with Delete Detection Method `FullSet`. The customer is delivered at 10:00, missing at 11:00 and 12:00, and delivered again at 13:00: ``` Hub_HK (shortened) BG_ValidFromTimestamp BG_Appearance 0xE50BE2BB... 2026-10-27 10:00 +00:00 1 0xE50BE2BB... 2026-10-27 11:00 +00:00 0 0xE50BE2BB... 2026-10-27 12:00 +00:00 0 0xE50BE2BB... 2026-10-27 13:00 +00:00 1 ``` With Delete Detection Method `None`, the same loads give only the rows of 10:00 and 13:00. ### Related articles - Reference: [Delete Detection Method (Model Object)](https://knowledge.bigenius-x.com/delete-detection-method?hsLang=en), [Hub\_HK](https://knowledge.bigenius-x.com/hub_hk?hsLang=en), [BG\_LoadTimestamp](https://knowledge.bigenius-x.com/bg_loadtimestamp?hsLang=en) - See also: [Create a Record Tracking Satellite](https://knowledge.bigenius-x.com/create-a-record-tracking-satellite?hsLang=en) - [Getting started](https://knowledge.bigenius-x.com/getting-started?hsLang=en#main-content) - [Guidelines](https://knowledge.bigenius-x.com/getting-started?hsLang=en#guidelines) - 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