---
title: "SQL-277: PolicyExtensions.SeedForPolicyTesting"
summary: Read operation for `PolicyExtensions.SeedForPolicyTesting`
status: draft
owner: SAIF.Core documentation team
last_reviewed: 2026-09-24
library: SAIF.Data
reference_type: package
---

# SQL-277: PolicyExtensions.SeedForPolicyTesting

This statement is a read operation invoked through ORM (NHibernate LINQ). Executed by `PolicyExtensions.SeedForPolicyTesting`.

## Classification

| Field | Value |
| --- | --- |
| **SQL ID** | SQL-277 |
| **Operation type** | Read |
| **Execution method** | ORM (NHibernate LINQ) |
| **Database** | Oracle* |
| **Schema** | [unqualified]** |
| **Command type** | N/A (ORM-generated) |
| **Business object** | `PolicyExtensions` |
| **Criteria property** | N/A — ORM |
| **Lifecycle method** | `SeedForPolicyTesting` |

## Tables

| Table | Access | Columns used |
| --- | --- | --- |
| [MARKET_TYPE_CODE](../database-tables.md#market_type_code) | SELECT (existence) + INSERT, ×2 (hypothetical) | CODE, DESCR |

## LINQ statement

Source: `Data/SAIF.Data/TestRepository/RepositoryExtensions/PolicyExtensions.cs:18`.

```csharp
// Data/SAIF.Data/TestRepository/RepositoryExtensions/PolicyExtensions.cs:18
uow.GetRepository<MarketTypeCode>().Seed();

// Data/SAIF.Data/TestRepository/RepositoryExtensions/PolicyExtensions.cs:165-169
public static void Seed(this IRepository<MarketTypeCode> repo)
{
    repo.AddCode("VOL", "Voluntary");
    repo.AddCode("ARP", "Assigned Risk");
}
```

## Sample SQL

> **Test double — no runtime SQL.** This statement executes against `TestUnitOfWork`/`TestRepository<T>` (in-memory, `List<TEntity>`-backed test doubles in `SAIF.Framework.Core`); no NHibernate session is opened and no SQL is issued at runtime. The SQL below is the hypothetical statement the same expression would produce against a real NHibernate `IUnitOfWork` using the in-repo mappings, shown to document the mapping shape only — **no database table is accessed when this code runs.**

> **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
-- AddCode pattern (SharedExtensions.cs:26-27), issued 2 time(s); first call shown ('VOL', 'Voluntary')
SELECT *
FROM (
  SELECT 1
  FROM MARKET_TYPE_CODE MTC
  WHERE MTC.CODE = :code
    AND MTC.DESCR = :description)
WHERE ROWNUM <= 1

-- only when the probe returns no row
INSERT INTO MARKET_TYPE_CODE (
  CODE,
  DESCR)
VALUES (
  :Code,
  :Description)
```

Translation notes:
- `AddCode(code, description)` (`Data/SAIF.Data/TestRepository/RepositoryExtensions/SharedExtensions.cs:23-28`) runs `repo.Query().Any(x => x.Code == code && x.Description == description)` and, only if false, `repo.Add(new T { Code, Description })`. The pair is issued once per call (2 calls, lines 165-169).
- Columns not set by `AddCode` are written as NULL (or the mapped default) in the INSERT.
- `Description` maps to column `DESCR` on this table.

## Sources

- `Data/SAIF.Data/TestRepository/RepositoryExtensions/PolicyExtensions.cs:18`