SQL-082: EbillBatchQueryProvider.GetFirstBatch¶

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

Classification¶

Field	Value
SQL ID	SQL-082
Operation type	Read
Execution method	ORM (NHibernate LINQ)
Database	Oracle*
Schema	[unqualified]**
Command type	N/A (ORM-generated)
Business object	`EbillBatchQueryProvider`
Criteria property	N/A — ORM
Lifecycle method	`GetFirstBatch`

Parameters¶

Parameter	Direction	Type	Max length	Description
`batchType`	Input	string	N/A	Method argument of `EbillBatchQueryProvider.GetFirstBatch` bound into the ORM expression; NHibernate generates the bind variable at runtime
`batchStatus`	Input	string	N/A	Method argument of `EbillBatchQueryProvider.GetFirstBatch` bound into the ORM expression; NHibernate generates the bind variable at runtime

Tables¶

Table	Access	Columns used
EBILL_BATCH	SELECT	`EBILL_BATCH_SEQ_NUM`, `UPDATE_NUM`, `CREATE_DATE`, `SUBMISSION_DATE`, `UPDATE_DATE`, `UPDATE_USER`, `CLEARINGHOUSE_FILE_NAME`, `EBILL_BATCH_TYPE_CODE`, `RESPONSE_BATCH_SEQ_NUM`, `EBILL_BATCH_STATUS_CODE`, `PAYMENT_TRANS_STAT_SEQ_NUM`, `EBILL_CLEARINGHOUSE_SEQ_NUM`

LINQ statement¶

Source: Data/SAIF.Data/Queries/Claims/Ebilling/EbillBatchQueryProvider.cs:47. The repository is obtained at Data/SAIF.Data/Queries/Claims/Ebilling/EbillBatchQueryProvider.cs:19.

// Data/SAIF.Data/Queries/Claims/Ebilling/EbillBatchQueryProvider.cs:19
batchRepository = Factory.GetRepository<EbillBatch>().Query();

// Data/SAIF.Data/Queries/Claims/Ebilling/EbillBatchQueryProvider.cs:47
return batchRepository
            .Where(b => b.Type.Code == batchType &&
                        b.Status.Code == batchStatus)
            .OrderBy(o => o.Id)
            .FirstOrDefault();

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 *
FROM (
  SELECT
    EB.EBILL_BATCH_SEQ_NUM,
    EB.UPDATE_NUM,
    EB.CREATE_DATE,
    EB.SUBMISSION_DATE,
    EB.UPDATE_DATE,
    EB.UPDATE_USER,
    EB.CLEARINGHOUSE_FILE_NAME,
    EB.EBILL_BATCH_TYPE_CODE,
    EB.RESPONSE_BATCH_SEQ_NUM,
    EB.EBILL_BATCH_STATUS_CODE,
    EB.PAYMENT_TRANS_STAT_SEQ_NUM,
    EB.EBILL_CLEARINGHOUSE_SEQ_NUM
  FROM EBILL_BATCH EB
  WHERE EB.EBILL_BATCH_TYPE_CODE = :batchType
    AND EB.EBILL_BATCH_STATUS_CODE = :batchStatus
  ORDER BY EB.EBILL_BATCH_SEQ_NUM
)
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

Business rules¶

SD-BR-053 E-bill batch type classification

Sources¶

Data/SAIF.Data/Queries/Claims/Ebilling/EbillBatchQueryProvider.cs:47