SQL-223: ReserveQueryProvider.GetIncurredCostForDate¶

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

Classification¶

Field	Value
SQL ID	SQL-223
Operation type	Read
Execution method	ORM (NHibernate LINQ)
Database	Oracle*
Schema	[unqualified]**
Command type	N/A (ORM-generated)
Business object	`ReserveQueryProvider`
Criteria property	N/A — ORM
Lifecycle method	`GetIncurredCostForDate`

Parameters¶

Parameter	Direction	Type	Max length	Description
`claimId`	Input	long	N/A	Method argument of `ReserveQueryProvider.GetIncurredCostForDate` bound into the ORM expression; NHibernate generates the bind variable at runtime
`effectiveDate`	Input	DateTime	N/A	Method argument of `ReserveQueryProvider.GetIncurredCostForDate` bound into the ORM expression; NHibernate generates the bind variable at runtime

Tables¶

Table	Access	Columns used
CL_INCURRED_COST_HISTORY	SELECT (outer + correlated subquery)	CL_INCURRED_COST_HIST_SEQ_NUM, UPDATE_NUM, CLAIM_COST_DATE, RESERVE_APPROVER_USER, RESERVE_INITIATOR_USER, GENERAL_ANALYSIS_TEXT, UPDATE_DATE, UPDATE_USER, CLAIM_ID

LINQ statement¶

Source: Data/SAIF.Data/Queries/Claims/ReserveQueryProvider.cs:31-35. The repository/queryable is initialised at Data/SAIF.Data/Queries/Claims/ReserveQueryProvider.cs:17.

// Data/SAIF.Data/Queries/Claims/ReserveQueryProvider.cs:17
repository = Factory.GetRepository<IncurredCostHistory>().Query();

// Data/SAIF.Data/Queries/Claims/ReserveQueryProvider.cs:31-35
public IncurredCostHistory GetIncurredCostForDate(long claimId, DateTime effectiveDate)
{
    return repository.Where(w => w.Claim.Id == claimId)
              .SingleOrDefault(x => x.Id == repository
                      .Where(w => w.Claim.Id == claimId
                      && effectiveDate >= x.ClaimCostDate.Date
                      && effectiveDate <= x.ClaimCostDate.Date).Max(m => m.Id));
}

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
  CICH.CL_INCURRED_COST_HIST_SEQ_NUM,
  CICH.UPDATE_NUM,
  CICH.CLAIM_COST_DATE,
  CICH.RESERVE_APPROVER_USER,
  CICH.RESERVE_INITIATOR_USER,
  CICH.GENERAL_ANALYSIS_TEXT,
  CICH.UPDATE_DATE,
  CICH.UPDATE_USER,
  CICH.CLAIM_ID
FROM CL_INCURRED_COST_HISTORY CICH
WHERE CICH.CLAIM_ID = :claimId
  AND CICH.CL_INCURRED_COST_HIST_SEQ_NUM = (
    SELECT MAX(CICH2.CL_INCURRED_COST_HIST_SEQ_NUM)
    FROM CL_INCURRED_COST_HISTORY CICH2
    WHERE CICH2.CLAIM_ID = :claimId
      AND :effectiveDate >= TRUNC(CICH.CLAIM_COST_DATE)
      AND :effectiveDate <= TRUNC(CICH.CLAIM_COST_DATE)
  )
-- SingleOrDefault: NHibernate expects at most one row

Translation notes: - Correlation to the outer row. The date predicates inside the subquery reference x.ClaimCostDate, where x is the outer SingleOrDefault parameter, not w. They therefore correlate to the outer alias CICH. As written, the query returns the claim's latest row only if that row's truncated CLAIM_COST_DATE equals :effectiveDate; it does not return the latest row on that date. This looks like a source defect (intended w.ClaimCostDate), translated faithfully. - ClaimCostDate.Date → Oracle TRUNC(col). If :effectiveDate carries a time component, the >=/<= pair can never both hold.

Operations and processes¶

Other query providers

Sources¶

Data/SAIF.Data/Queries/Claims/ReserveQueryProvider.cs:31