Skip to content

SQL-217: ProviderQueryProvider.HasActiveRelationship

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

Classification

Field Value
SQL ID SQL-217
Operation type Read
Execution method ORM (NHibernate LINQ)
Database Oracle*
Schema [unqualified]**
Command type N/A (ORM-generated)
Business object ProviderQueryProvider
Criteria property N/A — ORM
Lifecycle method HasActiveRelationship

Parameters

Parameter Direction Type Max length Description
providerLocationId Input long N/A Method argument of ProviderQueryProvider.HasActiveRelationship bound into the ORM expression; NHibernate generates the bind variable at runtime
parentProviderLocationId Input long N/A Method argument of ProviderQueryProvider.HasActiveRelationship bound into the ORM expression; NHibernate generates the bind variable at runtime

Tables

Table Access Columns used
PROVIDER_RELATIONSHIP SELECT (existence) EXP_DATE, PROVIDER_LOCATION_SEQ_NUM, PARENT_PROVIDER_LOC_SEQ_NUM

LINQ statement

Source: Data/SAIF.Data/Queries/Providers/ProviderQueryProvider.cs:240-243.

public bool HasActiveRelationship(long providerLocationId, long parentProviderLocationId)
{
    return Factory.GetRepository<ProviderRelationship>().Query()
        .Any(x => !x.ExpirationDate.HasValue
                  && x.ProviderLocation.Id == providerLocationId
                  && x.ParentProviderLocation.Id == parentProviderLocationId);
}

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 1
  FROM PROVIDER_RELATIONSHIP PR
  WHERE PR.EXP_DATE IS NULL
    AND PR.PROVIDER_LOCATION_SEQ_NUM = :providerLocationId
    AND PR.PARENT_PROVIDER_LOC_SEQ_NUM = :parentProviderLocationId
) WHERE ROWNUM <= 1

Translation notes: - !x.ExpirationDate.HasValue → IS NULL. Any() → existence probe.

Operations and processes

Business rules

Sources

  • Data/SAIF.Data/Queries/Providers/ProviderQueryProvider.cs:240