SQL-107: EbillInvoiceQueryProvider.GetInvoice¶

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

Classification¶

Field	Value
SQL ID	SQL-107
Operation type	Read
Execution method	ORM (NHibernate LINQ)
Database	Oracle*
Schema	[unqualified]**
Command type	N/A (ORM-generated)
Business object	`EbillInvoiceQueryProvider`
Criteria property	N/A — ORM
Lifecycle method	`GetInvoice`

Parameters¶

Parameter	Direction	Type	Max length	Description
`invoiceMonth`	Input	DateTime	N/A	Method argument of `EbillInvoiceQueryProvider.GetInvoice` bound into the ORM expression; NHibernate generates the bind variable at runtime

Tables¶

Table	Access	Columns used
EBILL_INVOICE	SELECT	`EBILL_INVOICE_SEQ_NUM`, `UPDATE_NUM`, `RECEIVED_DATE`, `BEGIN_DATE`, `END_DATE`, `TRANSACTION_FEE_AMT`, `INVOICE_AMOUNT`, `UPDATE_DATE`, `UPDATE_USER`, `EBILL_CLEARINGHOUSE_SEQ_NUM`

LINQ statement¶

Source: Data/SAIF.Data/Queries/Claims/Ebilling/EbillInvoiceQueryProvider.cs:25

The repository is a class field initialised from Factory.GetRepository<EbillInvoice>() at Data/SAIF.Data/Queries/Claims/Ebilling/EbillInvoiceQueryProvider.cs:18.

// Data/SAIF.Data/Queries/Claims/Ebilling/EbillInvoiceQueryProvider.cs:18
invoiceRepository = Factory.GetRepository<EbillInvoice>().Query();

// Data/SAIF.Data/Queries/Claims/Ebilling/EbillInvoiceQueryProvider.cs:25
return invoiceRepository.FirstOrDefault(x => x.BeginDate == invoiceMonth);

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
    EI.EBILL_INVOICE_SEQ_NUM,
    EI.UPDATE_NUM,
    EI.RECEIVED_DATE,
    EI.BEGIN_DATE,
    EI.END_DATE,
    EI.TRANSACTION_FEE_AMT,
    EI.INVOICE_AMOUNT,
    EI.UPDATE_DATE,
    EI.UPDATE_USER,
    EI.EBILL_CLEARINGHOUSE_SEQ_NUM
  FROM EBILL_INVOICE EI
  WHERE EI.BEGIN_DATE = :invoiceMonth
)
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

Sources¶

Data/SAIF.Data/Queries/Claims/Ebilling/EbillInvoiceQueryProvider.cs:25