---
title: "SQL-360: Delete Activity via DeleteActivity"
summary: Delete operation against Activity via NHibernate ORM.
status: draft
owner: SAIF Doc Gen
last_reviewed: 2026-09-24
library: SAIF.Services
reference_type: package
---

# SQL-360: Delete Activity via DeleteActivity

This ORM statement deletes a `LEGAL_COLLECTION_ACTIVITY` row for a previously loaded legal collection activity, executed from `Services/SAIF.Services/Collections/CollectionsService.cs (L1257)`. The SQL below is inferred from the `IRepository<Activity>.Delete` call and the `Activity` NHibernate mapping, not literal SQL text in source.

## Classification

| Field | Value |
| --- | --- |
| **SQL ID** | SQL-360 |
| **Operation type** | Delete |
| **Execution method** | ORM (IRepository.Delete) |
| **Database** | Oracle |
| **Schema** | [unqualified]** |
| **Command type** | N/A (ORM-generated) |
| **Business object** | `Activity` |
| **Criteria property** | N/A — ORM |
| **Lifecycle method** | `DeleteActivity` |

## Parameters

| Parameter | Direction | Type | Max length | Description |
| --- | --- | --- | --- | --- |
| `:Id` | Input | long | N/A | Identifier of the Activity being deleted (`LEGAL_COLL_ACTIVITY_SEQ_NUM`) |
| `:oldVersion` | Input | int | N/A | Current `UPDATE_NUM` value (optimistic-concurrency check) |

## Tables

| Table | Access | Columns used |
| --- | --- | --- |
| [LEGAL_COLLECTION_ACTIVITY](../database-tables.md#legal_collection_activity) | DELETE | `LEGAL_COLL_ACTIVITY_SEQ_NUM`, `UPDATE_NUM` |

## LINQ statement

Source: `Services/SAIF.Services/Collections/CollectionsService.cs:1257`

```csharp
// Services/SAIF.Services/Collections/CollectionsService.cs:1257
UnitOfWork.GetRepository<DataModel.Activity>()
    .Delete(activity);
```

## Sample SQL

> **Inferred SQL:** This SQL was inferred from the LINQ statement above and the NHibernate mappings. It is not concrete SQL from source code; NHibernate generates the executed statement at runtime, so aliases, column order, join syntax, and bind-parameter names may differ.

```sql
-- Inferred from LINQ (NHibernate mapping translation); not concrete SQL
DELETE FROM LEGAL_COLLECTION_ACTIVITY
WHERE LEGAL_COLL_ACTIVITY_SEQ_NUM = :Id
  AND UPDATE_NUM = :oldVersion
```

Translation notes:

- `Version(x => x.UpdateNum).Column("UPDATE_NUM")` adds the old-version predicate to the DELETE.
- Entity loaded beforehand by `GetActivityData(activityId)` (line 1253) - that read is a separate statement.

## Operations and processes
- CollectionsService.DeleteActivity — see [Operations and processes](../operations-processes.md)

## Sources
- `Services/SAIF.Services/Collections/CollectionsService.cs (L1257)`