---
title: "SQL-153: Retrieve DocRequestLogStatusCode via UpdateRequestStatus"
summary: Read operation against DocRequestLogStatusCode via NHibernate ORM.
status: draft
owner: SAIF Doc Gen
last_reviewed: 2026-09-24
library: SAIF.Services
reference_type: package
---

# SQL-153: Retrieve DocRequestLogStatusCode via UpdateRequestStatus

This ORM statement performs a read operation on `DocRequestLogStatusCode` via `IUnitOfWork.GetRepository<T>()`, executed from `Services/SAIF.Services/Documents/DocumentRequestService.cs (L558)`.

## Classification

| Field | Value |
| --- | --- |
| **SQL ID** | SQL-153 |
| **Operation type** | Read |
| **Execution method** | ORM (NHibernate LINQ) |
| **Database** | Oracle |
| **Schema** | [unqualified]** |
| **Command type** | N/A (ORM-generated) |
| **Business object** | `DocRequestLogStatusCode` |
| **Criteria property** | N/A — ORM |
| **Lifecycle method** | `UpdateRequestStatus` |

## Parameters

| Parameter | Direction | Type | Max length | Description |
| --- | --- | --- | --- | --- |
| `requestStatus` | Input | ** | N/A | `a.Code == requestStatus` → column CODE |

## Tables

| Table | Access | Columns used |
| --- | --- | --- |
| [DOC_REQUEST_LOG_STATUS_CODE](../database-tables.md#doc_request_log_status_code) | SELECT | `CODE`, `CODE_DESCR`, `UPDATE_DATE`, `UPDATE_USER`, `UPDATE_NUM` |

## LINQ statement

Source: `Services/SAIF.Services/Documents/DocumentRequestService.cs:558`

```csharp
// Services/SAIF.Services/Documents/DocumentRequestService.cs:558
            var validStatus = UnitOfWork.GetRepository<DocRequestLogStatusCode>().Query().SingleOrDefault(a => a.Code == requestStatus);
```

## 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
-- Services/SAIF.Services/Documents/DocumentRequestService.cs:558
SELECT
  DRLSC.CODE,
  DRLSC.CODE_DESCR,
  DRLSC.UPDATE_DATE,
  DRLSC.UPDATE_USER,
  DRLSC.UPDATE_NUM
FROM DOC_REQUEST_LOG_STATUS_CODE DRLSC
WHERE DRLSC.CODE = :requestStatus
-- NHibernate expects at most one row
```

## Operations and processes
- DocumentRequestService.UpdateRequestStatus — see [Operations and processes](../operations-processes.md)

## Business rules
- [SVC-BR-DOC-002 Request status must exist in DocRequestLogStatusCode - 'This request status is invalid - {s}.'](../business-rules.md#svc-br-doc-002-request-status-must-exist-in-docrequestlogstatuscode---'this-request-status-is-invalid---%7Bs%7D.')
- [SVC-BR-DOC-003 Request must exist - 'This document request does not exist[ - id].'](../business-rules.md#svc-br-doc-003-request-must-exist---'this-document-request-does-not-exist%5B---id%5D.')

## Sources
- `Services/SAIF.Services/Documents/DocumentRequestService.cs (L558)`