---
title: "SQL-165: LegalQueryProvider.IsPrimaryCase"
summary: Read operation for `LegalQueryProvider.IsPrimaryCase`
status: draft
owner: SAIF.Core documentation team
last_reviewed: 2026-09-24
library: SAIF.Data
reference_type: package
---

# SQL-165: LegalQueryProvider.IsPrimaryCase

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

## Classification

| Field | Value |
| --- | --- |
| **SQL ID** | SQL-165 |
| **Operation type** | Read |
| **Execution method** | ORM (NHibernate LINQ) |
| **Database** | Oracle* |
| **Schema** | [unqualified]** |
| **Command type** | N/A (ORM-generated) |
| **Business object** | `LegalQueryProvider` |
| **Criteria property** | N/A — ORM |
| **Lifecycle method** | `IsPrimaryCase` |

## Parameters

| Parameter | Direction | Type | Max length | Description |
| --- | --- | --- | --- | --- |
| `caseId` | Input | long | N/A | Method argument of `LegalQueryProvider.IsPrimaryCase` bound into the ORM expression; NHibernate generates the bind variable at runtime |

## Tables

| Table | Access | Columns used |
| --- | --- | --- |
| [CONSOLIDATED_CASE](../database-tables.md#consolidated_case) | SELECT (existence) | PRIMARY_CASE_SEQ_NUM |

## LINQ statement

Source: `Data/SAIF.Data/Queries/Legal/LegalQueryProvider.cs:132`.

```csharp
public bool IsPrimaryCase(long caseId)
{
    return Factory.GetRepository<ConsolidatedCase>().Query().Any(x => x.PrimaryCase.Id == caseId);
}
```

## 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 * FROM (
  SELECT 1
  FROM CONSOLIDATED_CASE CC
  WHERE CC.PRIMARY_CASE_SEQ_NUM = :caseId
) WHERE ROWNUM <= 1
```

Translation notes:
- NHibernate's LINQ provider implements `Any(predicate)` as a row-limited existence probe; `true` is returned when a row comes back. The exact projection NHibernate emits may differ (some versions select the Id column), but the semantics are the same.

## Operations and processes

- [Legal case queries](../operations/legal-case-queries.md)

## Business rules

- [SD-BR-060 Case-to-claim resolution precedence](../business-rules.md#sd-br-060-case-to-claim-resolution-precedence)
- [SD-BR-061 Preferred employee name takes precedence](../business-rules.md#sd-br-061-preferred-employee-name-takes-precedence)

## Sources
- `Data/SAIF.Data/Queries/Legal/LegalQueryProvider.cs:132`