SQL-190: OverpaymentQueryProvider.GetRecoverableBalance¶

This statement is a read operation invoked through ORM (NHibernate LINQ). Executed by OverpaymentQueryProvider.GetRecoverableBalance.

Classification¶

Field	Value
SQL ID	SQL-190
Operation type	Read
Execution method	ORM (NHibernate LINQ)
Database	Oracle*
Schema	[unqualified]**
Command type	N/A (ORM-generated)
Business object	`OverpaymentQueryProvider`
Criteria property	N/A — ORM
Lifecycle method	`GetRecoverableBalance`

Parameters¶

Parameter	Direction	Type	Max length	Description
`workerId`	Input	long	N/A	Method argument of `OverpaymentQueryProvider.GetRecoverableBalance` bound into the ORM expression; NHibernate generates the bind variable at runtime

Tables¶

Table	Access	Columns used
CL_OVERPAYMENT	SELECT (existence + aggregate)	WORKER_ID, AMENDED_OVERPAYMENT_SEQ_NUM, OVERPAYMENT_STATUS_CODE (filters); OUTSTANDING_AMOUNT (SUM)

LINQ statement¶

Source: Data/SAIF.Data/Queries/Claims/OverpaymentQueryProvider.cs:22-28. The repository/queryable is initialised at Data/SAIF.Data/Queries/Claims/OverpaymentQueryProvider.cs:12.

// Data/SAIF.Data/Queries/Claims/OverpaymentQueryProvider.cs:12
repository = Factory.GetRepository<Overpayment>().Query();

// Data/SAIF.Data/Queries/Claims/OverpaymentQueryProvider.cs:22-28
public decimal GetRecoverableBalance(long workerId)
{

    var statusCodes = new string[] { "1", "3" };
    var result = (decimal)0;

    var opRecords = repository
        .Where(x => x.Worker.PersonId == workerId)
        .Where(x => x.AmendedOverpaymentId == 0)
        .Where(x => statusCodes.Contains(x.Status.Code));

    if (opRecords.Any())
        result = opRecords.Sum(x => x.OutstandingAmount);

    return result;
}

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.

-- Inferred from LINQ (NHibernate mapping translation); not concrete SQL
-- Statement 1 (line 27): opRecords.Any()
SELECT * FROM (
  SELECT 1
  FROM CL_OVERPAYMENT CO
  WHERE CO.WORKER_ID = :workerId
    AND CO.AMENDED_OVERPAYMENT_SEQ_NUM = 0
    AND CO.OVERPAYMENT_STATUS_CODE IN ('1', '3')
) WHERE ROWNUM <= 1;

-- Statement 2 (line 28), only when statement 1 returns a row: opRecords.Sum(x => x.OutstandingAmount)
SELECT SUM(CO.OUTSTANDING_AMOUNT)
FROM CL_OVERPAYMENT CO
WHERE CO.WORKER_ID = :workerId
  AND CO.AMENDED_OVERPAYMENT_SEQ_NUM = 0
  AND CO.OVERPAYMENT_STATUS_CODE IN ('1', '3')

Translation notes: - The three chained Where calls are ANDed together. - statusCodes.Contains(x.Status.Code) → IN (:p0, :p1). The values are shown inline. - Two round trips: Any(), then Sum(). The Any guard avoids a null-to-decimal cast failure on an empty SUM.

Operations and processes¶

Recoverable overpayment balance

Business rules¶

SD-BR-021 Recoverable balance sums outstanding amount for non-amended overpayments

Sources¶

Data/SAIF.Data/Queries/Claims/OverpaymentQueryProvider.cs:22