---
title: "SQL-110: EbillPatientQueryProvider.GetPatient"
summary: Read operation for `EbillPatientQueryProvider.GetPatient`
status: draft
owner: SAIF.Core documentation team
last_reviewed: 2026-09-24
library: SAIF.Data
reference_type: package
---

# SQL-110: EbillPatientQueryProvider.GetPatient

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

## Classification

| Field | Value |
| --- | --- |
| **SQL ID** | SQL-110 |
| **Operation type** | Read |
| **Execution method** | ORM (NHibernate LINQ) |
| **Database** | Oracle* |
| **Schema** | [unqualified]** |
| **Command type** | N/A (ORM-generated) |
| **Business object** | `EbillPatientQueryProvider` |
| **Criteria property** | N/A — ORM |
| **Lifecycle method** | `GetPatient` |

## Parameters

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

## Tables

| Table | Access | Columns used |
| --- | --- | --- |
| [EBILL_PATIENT](../database-tables.md#ebill_patient) | SELECT | `EBILL_PATIENT_SEQ_NUM`, `UPDATE_NUM`, `SUBSCRIBER_NAME`, `SUBSCRIBER_LEVEL_NUMBER`, `PATIENT_LEVEL_NUMBER`, `CLAIM_NUM`, `BIRTH_DATE`, `GENDER_CODE`, `PATIENT_LAST_NAME`, `PATIENT_FIRST_NAME`, `PATIENT_MIDDLE_NAME`, `PATIENT_NAME_EXTENSION`, `PATIENT_ID`, `PATIENT_TAX_ID`, `UPDATE_USER`, `UPDATE_DATE`, `CLAIM_ID`, `EBILL_PROVIDER_SEQ_NUM`, `SUBSCRIBER_ADDRESS_SEQ_NUM`, `PATIENT_ADDRESS_SEQ_NUM` |

## LINQ statement

Source: `Data/SAIF.Data/Queries/Claims/Ebilling/EbillPatientQueryProvider.cs:20`

```csharp
// Data/SAIF.Data/Queries/Claims/Ebilling/EbillPatientQueryProvider.cs:15
repository = Factory.GetRepository<EbillPatient>().Query();

// Data/SAIF.Data/Queries/Claims/Ebilling/EbillPatientQueryProvider.cs:20
return repository.FirstOrDefault(p => p.Id == patientId);
```

## 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
    EP.EBILL_PATIENT_SEQ_NUM,
    EP.UPDATE_NUM,
    EP.SUBSCRIBER_NAME,
    EP.SUBSCRIBER_LEVEL_NUMBER,
    EP.PATIENT_LEVEL_NUMBER,
    EP.CLAIM_NUM,
    EP.BIRTH_DATE,
    EP.GENDER_CODE,
    EP.PATIENT_LAST_NAME,
    EP.PATIENT_FIRST_NAME,
    EP.PATIENT_MIDDLE_NAME,
    EP.PATIENT_NAME_EXTENSION,
    EP.PATIENT_ID,
    EP.PATIENT_TAX_ID,
    EP.UPDATE_USER,
    EP.UPDATE_DATE,
    EP.CLAIM_ID,
    EP.EBILL_PROVIDER_SEQ_NUM,
    EP.SUBSCRIBER_ADDRESS_SEQ_NUM,
    EP.PATIENT_ADDRESS_SEQ_NUM
  FROM EBILL_PATIENT EP
  WHERE EP.EBILL_PATIENT_SEQ_NUM = :patientId
)
WHERE ROWNUM <= 1
```

Translation notes:

- Oracle10 row limit for `FirstOrDefault()`: the query (including any `ORDER BY`) is wrapped in `ROWNUM <= 1` (limit written inline; NHibernate binds it as a parameter at runtime).

## Operations and processes

- [E-bill processing queries](../operations/e-bill-processing-queries.md)


## Sources
- `Data/SAIF.Data/Queries/Claims/Ebilling/EbillPatientQueryProvider.cs:20`