---
title: "SQL-016: Read operation"
summary: SQL-016 documentation for SAIF.Business.Claim.Bill.
status: draft
owner: Technical Writer
last_reviewed: 2026-07-28
library: SAIF.Business.Claim.Bill
reference_type: package
---

# SQL-016: Read operation

This document records the SQL used by `clsNationalDrug` in `SAIF.Business.Claim.Bill`.

## Classification

| Field | Value |
| --- | --- |
| **SQL ID** | SQL-016 |
| **Operation type** | Read |
| **Execution method** | StringBuilder |
| **Database** | Oracle |
| **Schema** | [unqualified]** |
| **Command type** | Text |
| **Business object** | `clsNationalDrug` |
| **Criteria property** | `PriceSQL` |
| **Lifecycle method** | `PriceSQL` |

## Parameters

| Parameter | Direction | Type | Max length | Description |
| --- | --- | --- | --- | --- |
| `:NationalDrugCode` | Input | String | N/A | Binds NationalDrugCode from active calling code or Oracle signature. |

## Tables

| Table | Access | Columns used |
| --- | --- | --- |
| [CBP_NATIONAL_DRUG_PRICE](../database-tables.md#cbp_national_drug_price) | READ | C, D, N, _ |

## Sample SQL

```sql
select eff_date as eff, exp_date as exp, average_wholesale_unit_amt as amt 
FROM cbp_national_drug_price 
WHERE national_drug_code = :NationalDrugCode
```

> **Note:** Statements marked with * were inferred from code structure, naming conventions, or
> contextual evidence where direct confirmation was not available in source artifacts. Statements
> marked with ** could not be confirmed; treat as unknown until verified.

## Sources
- `Business\SAIF.Business.Claim.Bill\AuditSupport\Services\clsNationalDrug.vb`