SQL-176: MedicareQueryProvider.GetNextMinumumSubmissionBatch¶

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

Classification¶

Field	Value
SQL ID	SQL-176
Operation type	Read
Execution method	ORM (NHibernate LINQ)
Database	Oracle*
Schema	[unqualified]**
Command type	N/A (ORM-generated)
Business object	`MedicareQueryProvider`
Criteria property	N/A — ORM
Lifecycle method	`GetNextMinumumSubmissionBatch`

Tables¶

Table	Access	Columns used
MEDICARE_BENEFICIARY_QUERY_BAT	SELECT (outer + correlated-free subquery)	SUBMISSION_DATE, UPDATE_NUM, RESPONSE_DATE, SUBMITTED_WORKER_COUNT, MATCHED_WORKER_COUNT, UPDATE_USER, UPDATE_DATE

LINQ statement¶

Source: Data/SAIF.Data/Queries/Claims/MedicareQueryProvider.cs:24-25. The repository/queryable is initialised at Data/SAIF.Data/Queries/Claims/MedicareQueryProvider.cs:17.

// Data/SAIF.Data/Queries/Claims/MedicareQueryProvider.cs:17
medicareBatchRepository = factory.GetRepository<MedicareBeneficiaryQueryBatch>().Query();

// Data/SAIF.Data/Queries/Claims/MedicareQueryProvider.cs:24-25
public MedicareBeneficiaryQueryBatch GetNextMinumumSubmissionBatch()
{
    var medicarehold = medicareBatchRepository.Where(s => s.ResponseDate != null);
    return medicareBatchRepository.SingleOrDefault(x => x.SubmissionDate == medicarehold.Min(d => d.SubmissionDate));
}

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
SELECT
  MBQB.SUBMISSION_DATE,
  MBQB.UPDATE_NUM,
  MBQB.RESPONSE_DATE,
  MBQB.SUBMITTED_WORKER_COUNT,
  MBQB.MATCHED_WORKER_COUNT,
  MBQB.UPDATE_USER,
  MBQB.UPDATE_DATE
FROM MEDICARE_BENEFICIARY_QUERY_BAT MBQB
WHERE MBQB.SUBMISSION_DATE = (
  SELECT MIN(MBQB2.SUBMISSION_DATE)
  FROM MEDICARE_BENEFICIARY_QUERY_BAT MBQB2
  WHERE MBQB2.RESPONSE_DATE IS NOT NULL
)
-- SingleOrDefault: NHibernate expects at most one row

Translation notes: - medicarehold is an un-materialized IQueryable. Using medicarehold.Min(m => m.BatchNumber) inside the outer lambda makes NHibernate emit it as a scalar subquery; it is not a separate round trip. - SubmissionDate is the entity Id (Id(x => x.SubmissionDate).Column("SUBMISSION_DATE")).

Operations and processes¶

Other query providers

Business rules¶

SD-BR-095 Medicare history match requires all fields equal

Sources¶

Data/SAIF.Data/Queries/Claims/MedicareQueryProvider.cs:24