SQL-173: LocationQueryProvider.GetClaimLocationContactWithDefault¶

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

Classification¶

Field	Value
SQL ID	SQL-173
Operation type	Read
Execution method	ORM (NHibernate LINQ)
Database	Oracle*
Schema	[unqualified]**
Command type	N/A (ORM-generated)
Business object	`LocationQueryProvider`
Criteria property	N/A — ORM
Lifecycle method	`GetClaimLocationContactWithDefault`

Parameters¶

Parameter	Direction	Type	Max length	Description
`locationId`	Input	long	N/A	Method argument of `LocationQueryProvider.GetClaimLocationContactWithDefault` bound into the ORM expression; NHibernate generates the bind variable at runtime

Tables¶

Table	Access	Columns used
CONTACT	SELECT	LOC_SEQ_NUM, CONTACT_TYPE_CODE, CONTACT_EFF_DATE, CONTACT_EXP_DATE, BUS_SEQ_NUM, CONTACT_FIRST_NAME, CONTACT_INITIAL, CONTACT_LAST_NAME, CONTACT_TITLE, CONTACT_PHONE, CONTACT_PHONE_EXT, EMAIL_ADDR, CELL_PHONE, CREATE_USER, CREATE_DATE, UPDATE_USER, UPDATE_DATE

LINQ statement¶

Source: Data/SAIF.Data/Queries/Locations/LocationQueryProvider.cs:68-70, 73-75.

public Contact GetClaimLocationContactWithDefault(long locationId)
{
    var contact = Factory.GetRepository<Contact>()
        .Query().OrderByDescending(o => o.EffectiveDate.Date)
        .FirstOrDefault(x => x.Id == locationId && x.ExpirationDate == null && x.ContactType == "CLM");
    if (contact != null)
        return contact;
    contact = Factory.GetRepository<Contact>()
        .Query().OrderByDescending(o => o.EffectiveDate)
        .FirstOrDefault(x => x.Id == locationId && x.ExpirationDate == null && x.ContactType == "CON");
    if (contact.IsNull())
    {
        return new Contact();
    }
    return contact;
}

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
-- Statement 1 (lines 68-70)
SELECT * FROM (
  SELECT
    C.LOC_SEQ_NUM,
    C.CONTACT_TYPE_CODE,
    C.CONTACT_EFF_DATE,
    C.CONTACT_EXP_DATE,
    C.BUS_SEQ_NUM,
    C.CONTACT_FIRST_NAME,
    C.CONTACT_INITIAL,
    C.CONTACT_LAST_NAME,
    C.CONTACT_TITLE,
    C.CONTACT_PHONE,
    C.CONTACT_PHONE_EXT,
    C.EMAIL_ADDR,
    C.CELL_PHONE,
    C.CREATE_USER,
    C.CREATE_DATE,
    C.UPDATE_USER,
    C.UPDATE_DATE
  FROM CONTACT C
  WHERE C.LOC_SEQ_NUM = :locationId
    AND C.CONTACT_EXP_DATE IS NULL
    AND C.CONTACT_TYPE_CODE = 'CLM'
  ORDER BY TRUNC(C.CONTACT_EFF_DATE) DESC
) WHERE ROWNUM <= 1;

-- Statement 2 (lines 73-75), only when statement 1 returns no row
SELECT * FROM (
  SELECT
    C.LOC_SEQ_NUM,
    C.CONTACT_TYPE_CODE,
    C.CONTACT_EFF_DATE,
    C.CONTACT_EXP_DATE,
    C.BUS_SEQ_NUM,
    C.CONTACT_FIRST_NAME,
    C.CONTACT_INITIAL,
    C.CONTACT_LAST_NAME,
    C.CONTACT_TITLE,
    C.CONTACT_PHONE,
    C.CONTACT_PHONE_EXT,
    C.EMAIL_ADDR,
    C.CELL_PHONE,
    C.CREATE_USER,
    C.CREATE_DATE,
    C.UPDATE_USER,
    C.UPDATE_DATE
  FROM CONTACT C
  WHERE C.LOC_SEQ_NUM = :locationId
    AND C.CONTACT_EXP_DATE IS NULL
    AND C.CONTACT_TYPE_CODE = 'CON'
  ORDER BY C.CONTACT_EFF_DATE DESC
) WHERE ROWNUM <= 1

Translation notes: - The two statements differ in their ordering. Statement 1 orders by EffectiveDate.Date (TRUNC); statement 2 orders by the raw EffectiveDate. - When neither statement returns a row, the method returns new Contact() in memory.

Operations and processes¶

Location lookups

Business rules¶

SD-BR-062 Location code and contact-type precedence

Sources¶

Data/SAIF.Data/Queries/Locations/LocationQueryProvider.cs:68