--- title: Delete Detection Partial Terms (Model Object) description: Delete Detection Partial Terms (DeleteDetectionPartialTerms) selects the Store Entity terms that identify the part of the data a load delivers. --- [Skip to content](https://knowledge.bigenius-x.com/delete-detection-partial-terms-model-object#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. [Properties](https://knowledge.bigenius-x.com/generators?hsLang=en#properties) # Delete Detection Partial Terms (Model Object) **Applies to** Platform: Microsoft SQL Server · Snowflake · Databricks · Fabric Lakehouse · Fabric Warehouse · Oracle Architecture: Data Store Delete Detection Partial Terms (`DeleteDetectionPartialTerms`) selects the Store Entity terms that identify the part of the data a load delivers. With Delete Detection Method `PartialSet`, a load checks only the stored keys whose values in these terms appear in the load. Available since Generator 2.2. ### Where to set it Set the property in the group Delete Detection when you [edit a model object](https://knowledge.bigenius-x.com/edit-a-model-object?hsLang=en) of type [Store Entity](https://knowledge.bigenius-x.com/store-entity?hsLang=en). The value is a selection of terms of the Store Entity. The default is empty. ### Rules - The property has an effect only with [Delete Detection Method](https://knowledge.bigenius-x.com/delete-detection-method-model-object?hsLang=en) `PartialSet`. This method needs at least one term. - Each term is compared on its own: a stored value matches when any delivered row has the same value in that term. - With several terms, [Delete Detection Partial Operator](https://knowledge.bigenius-x.com/delete-detection-partial-operator-model-object?hsLang=en) decides whether every term or one term must match. - A NULL value never matches. - With SCD2 history, only the current version of a key is checked. Since Generator 2.4.1. Validation reports a missing term and a term that does not exist on the Store Entity, see [PartialSet delete detection settings (Business Rule)](https://knowledge.bigenius-x.com/partialset-delete-detection-settings-business-rule?hsLang=en). ### Effect on generated output The delete-detection loader takes the current stored rows whose partial-term values appear in the source view. From these keys it removes the delivered keys. The rest are marked as deleted. ### Example The Store Entity `delete_detection_partialset_one_term_delete` on Microsoft SQL Server has the partial term `COUNTRY` and SCD2 history. Shortened, its delete-detection loader selects: ``` SELECT CUSTOMER_ID FROM store.DS_SE__Result WHERE BG_ValidToTimestamp = N'99991231' AND COUNTRY IN (SELECT DISTINCT COUNTRY FROM store.DS_SE__Source) EXCEPT SELECT CUSTOMER_ID FROM store.DS_SE__Source; ``` `` stands for the name of the Store Entity. Loads that delivered three sets of rows gave this result: - Load 1 delivers customers 1 and 2 from CH and customers 3, 4 and 5 from DE. - Load 2 delivers the same customers, but customer 3 is now in CH. - Load 3 delivers only customer 4 from DE. It marks customer 5 as deleted. Customer 3 stays unchanged, because its current version has CH. ### Related articles - Reference: [Delete Detection Method (Model Object)](https://knowledge.bigenius-x.com/delete-detection-method-model-object?hsLang=en), [Delete Detection Partial Operator (Model Object)](https://knowledge.bigenius-x.com/delete-detection-partial-operator-model-object?hsLang=en) - See also: [Configure delete detection](https://knowledge.bigenius-x.com/configure-a-delete-detection-behavior?hsLang=en), [PartialSet delete detection settings (Business Rule)](https://knowledge.bigenius-x.com/partialset-delete-detection-settings-business-rule?hsLang=en), [Generators Release - 2.4.1](https://knowledge.bigenius-x.com/generators-release-2.4.1?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) - [Start working](https://knowledge.bigenius-x.com/getting-started?hsLang=en#start-working) - 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