---
title: "SQL-246: Retrieve PaymentRef via GetTransactions"
summary: Read operation against PaymentRef via NHibernate ORM.
status: draft
owner: SAIF Doc Gen
last_reviewed: 2026-09-24
library: SAIF.Services
reference_type: package
---

# SQL-246: Retrieve PaymentRef via GetTransactions

This ORM statement retrieves the payment-reference ids for a legal-collection case, via `IUnitOfWork.GetRepository<T>()`, executed from `Services/SAIF.Services/Collections/CollectionsService.cs (L1566)`.

## Classification

| Field | Value |
| --- | --- |
| **SQL ID** | SQL-246 |
| **Operation type** | Read |
| **Execution method** | ORM (NHibernate LINQ) |
| **Database** | Oracle |
| **Schema** | [unqualified]** |
| **Command type** | N/A (ORM-generated) |
| **Business object** | `CollectionsService` |
| **Criteria property** | N/A — ORM |
| **Lifecycle method** | `GetTransactions` |

## Parameters

| Parameter | Direction | Type | Max length | Description |
| --- | --- | --- | --- | --- |
| `:caseId` | Input | long | N/A | Matched against `LEGAL_COLLECTION_SEQ_NUM` via `x.Case.Id` |

## Tables

| Table | Access | Columns used |
| --- | --- | --- |
| [LEGAL_COLLECTION_PAYMENT_REF](../database-tables.md#legal_collection_payment_ref) | SELECT | `PAYMENT_TRAN_SEQ_NUM`, `LEGAL_COLLECTION_SEQ_NUM` |

## LINQ statement

Source: `Services/SAIF.Services/Collections/CollectionsService.cs:1566`

```csharp
// Services/SAIF.Services/Collections/CollectionsService.cs:1566
var payRefRepo = UnitOfWork.GetRepository<DataModel.PaymentRef>().Query().Where(x => x.Case.Id == caseId).Select(x => x.Id).ToList();
```

## 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
SELECT
  LCPR.PAYMENT_TRAN_SEQ_NUM
FROM LEGAL_COLLECTION_PAYMENT_REF LCPR
WHERE LCPR.LEGAL_COLLECTION_SEQ_NUM = :caseId
```

Translation notes:
- Projection `Select(x => x.Id)` → only the identifier column is selected.
- `x.Case.Id` is the identifier of `Case` (`CaseMap.cs:12`, `LEGAL_COLLECTION_SEQ_NUM`) and short-circuits to the FK `LCPR.LEGAL_COLLECTION_SEQ_NUM`; the `LEGAL_COLLECTION` table is not joined.
- `Mappings/Collections/CollectionsMap.cs` also declares a `PaymentReferenceMap`/`CaseMap`, but that file is not compiled (`SAIF.Data.NHibernate.csproj` lines 449 and 465 include `CaseMap.cs`/`PaymentReferenceMap.cs`; `CollectionsMap.cs` has no `Compile` entry). The compiled maps were used.

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

## Sources
- `Services/SAIF.Services/Collections/CollectionsService.cs (L1566)`