SQL-038: PolicyOutputDocumentRepository.GetPolicyOutputDocumentsBySourceKeyText

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

Classification

Field	Value
SQL ID	SQL-038
Operation type	Read
Execution method	ORM (NHibernate LINQ)
Database	Oracle
Schema	[unqualified]**
Command type	N/A (ORM-generated)
Business object	PolicyOutputDocumentRepository
Criteria property	N/A — ORM
Lifecycle method	GetPolicyOutputDocumentsBySourceKeyText

Parameters

Parameter	Direction	Type	Max length	Description
:sourceKeyText	Input	string	N/A	Method argument bound into the LINQ expression

Tables

Table	Access	Columns used
policy_output_document	SELECT	output_document_seq_num, update_num, policy_period_eff_date, agency_seq_num, agent_num, agency_viewed_flag, agency_delivery_flag, agency_delete_date, create_user, create_date, update_user, update_date, release_date, hold_task_seq_num, task_user, source_key_text, ACCOUNT_NUM, policy_num, document_status_code
policy_output_document (alias POD2)	JOIN (INNER, Where navigation)	output_document_seq_num, source_key_text
output_document	JOIN (LEFT OUTER, fetch)	output_document_seq_num, update_num, image_seq_num, document_create_date, description, create_user, create_date, update_user, update_date, output_document_type_code
output_document_type_code	JOIN (LEFT OUTER, fetch)	code, code_descr, agency_view_flag, agency_inbox_flag, manual_add_flag, freeform_flag, sort_priority_num, SOURCE_SYSTEM_CODE, PACKAGE_NAME, image_file_code, image_category_code, image_document_type_code, output_document_category_code, Direct_Write_Notify_Text_Code
POLICY	JOIN (LEFT OUTER, fetch; two aliases — P = Policy, P2 = Policy.RelationshipPolicy)	POLICY_NUM, POLICY_NAME, LEGAL_NAME, SECURE_POLICY_CODE, OFFICE_CODE, ACCOUNT_NUM, POLICY_STATUS_CODE, MARKET_TYPE_CODE, POLICY_RELATIONSHIP_POLICY_NUM, POLICY_RELATIONSHIP_CODE, customer_service_team_code, ENTITY_CODE, TRADING_SEQ_NUM, RATE_ACCOUNT, AGENT_NUM (both aliases)
SUB_POLICY	JOIN (LEFT OUTER, collection fetch)	Sub_Policy_Seq_Num, SUBMISSION_STATUS_CODE, POLICY_NUM

LINQ statement

Source: Data/SAIF.Data.NHibernate/Repositories/OutputDocuments/PolicyOutputDocumentRepository.cs:53. The queryable is obtained at Data/SAIF.Data.NHibernate/Repositories/OutputDocuments/PolicyOutputDocumentRepository.cs:27 (EagerLoadQuery).

public IEnumerable<PolicyOutputDocument> GetPolicyOutputDocumentsBySourceKeyText(string sourceKeyText)
{
    return EagerLoadQuery().Where(x => x.OutputDocument.PolicyOutputDocument.SourceKeyText == sourceKeyText);
}

private IQueryable<PolicyOutputDocument> EagerLoadQuery()
{
    return Query()
            .Fetch(p => p.OutputDocument)
            .ThenFetch(o => o.DocumentType)
            .Fetch(p => p.Policy)
            .ThenFetch(p => p.SubmissionPolicies)
            .Fetch(p => p.Policy)
            .ThenFetch(p => p.RelationshipPolicy);
}

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
  POD.output_document_seq_num,
  POD.update_num,
  POD.policy_period_eff_date,
  POD.agency_seq_num,
  POD.agent_num,
  POD.agency_viewed_flag,
  POD.agency_delivery_flag,
  POD.agency_delete_date,
  POD.create_user,
  POD.create_date,
  POD.update_user,
  POD.update_date,
  POD.release_date,
  POD.hold_task_seq_num,
  POD.task_user,
  POD.source_key_text,
  POD.ACCOUNT_NUM,
  POD.policy_num,
  POD.document_status_code,
  OD.output_document_seq_num,
  OD.update_num,
  OD.image_seq_num,
  OD.document_create_date,
  OD.description,
  OD.create_user,
  OD.create_date,
  OD.update_user,
  OD.update_date,
  OD.output_document_type_code,
  ODTC.code,
  ODTC.code_descr,
  ODTC.agency_view_flag,
  ODTC.agency_inbox_flag,
  ODTC.manual_add_flag,
  ODTC.freeform_flag,
  ODTC.sort_priority_num,
  ODTC.SOURCE_SYSTEM_CODE,
  ODTC.PACKAGE_NAME,
  ODTC.image_file_code,
  ODTC.image_category_code,
  ODTC.image_document_type_code,
  ODTC.output_document_category_code,
  ODTC.Direct_Write_Notify_Text_Code,
  P.POLICY_NUM,
  P.POLICY_NAME,
  P.LEGAL_NAME,
  P.SECURE_POLICY_CODE,
  P.OFFICE_CODE,
  P.ACCOUNT_NUM,
  P.POLICY_STATUS_CODE,
  P.MARKET_TYPE_CODE,
  P.POLICY_RELATIONSHIP_POLICY_NUM,
  P.POLICY_RELATIONSHIP_CODE,
  P.customer_service_team_code,
  P.ENTITY_CODE,
  P.TRADING_SEQ_NUM,
  P.RATE_ACCOUNT,
  P.AGENT_NUM,
  SP.Sub_Policy_Seq_Num,
  SP.SUBMISSION_STATUS_CODE,
  SP.POLICY_NUM,
  P2.POLICY_NUM,
  P2.POLICY_NAME,
  P2.LEGAL_NAME,
  P2.SECURE_POLICY_CODE,
  P2.OFFICE_CODE,
  P2.ACCOUNT_NUM,
  P2.POLICY_STATUS_CODE,
  P2.MARKET_TYPE_CODE,
  P2.POLICY_RELATIONSHIP_POLICY_NUM,
  P2.POLICY_RELATIONSHIP_CODE,
  P2.customer_service_team_code,
  P2.ENTITY_CODE,
  P2.TRADING_SEQ_NUM,
  P2.RATE_ACCOUNT,
  P2.AGENT_NUM
FROM policy_output_document POD
  LEFT OUTER JOIN output_document OD
    ON OD.output_document_seq_num = POD.output_document_seq_num
  LEFT OUTER JOIN output_document_type_code ODTC
    ON ODTC.code = OD.output_document_type_code
  LEFT OUTER JOIN POLICY P
    ON P.POLICY_NUM = POD.policy_num
  LEFT OUTER JOIN SUB_POLICY SP
    ON SP.POLICY_NUM = P.POLICY_NUM
  LEFT OUTER JOIN POLICY P2
    ON P2.POLICY_NUM = P.POLICY_RELATIONSHIP_POLICY_NUM
  INNER JOIN policy_output_document POD2 -- x.OutputDocument.PolicyOutputDocument (shared-PK one-to-one)
    ON POD2.output_document_seq_num = OD.output_document_seq_num
WHERE POD2.source_key_text = :sourceKeyText

Translation notes: - EagerLoadQuery() contributes the same five LEFT OUTER JOINs described on SQL-036: .Fetch(OutputDocument) (constrained HasOne, shared PK), .ThenFetch(DocumentType), .Fetch(Policy), .ThenFetch(SubmissionPolicies), .ThenFetch(RelationshipPolicy). - ThenFetch(p => p.SubmissionPolicies) fetches a collection: without Distinct(), the materialized list can contain the same PolicyOutputDocument more than once per matching SUB_POLICY row. - x.OutputDocument.PolicyOutputDocument navigates the inverse one-to-one (HasOne(...).Cascade.All() on OutputDocument) back to policy_output_document on the shared PK output_document_seq_num. That is the same row as POD, so POD2.source_key_text = :sourceKeyText means the same thing as POD.source_key_text = :sourceKeyText. The join is shown because the navigation passes through a one-to-one, not an FK column, so NHibernate cannot short-circuit it. - OutputDocumentTypeCode.ImageDocumentTypes (HasManyToMany via output_doc_image_type_xref) is lazy and never fetched or filtered, so output_doc_image_type_xref is not accessed. ODTC.image_* columns are selected only as the References(ImageDocumentType) FK; image_document_type_code is not joined. - No status predicate is applied; PolicyOutputDocument.DocumentStatus is a lazy References, so only its FK column is selected and document_status_code is not joined. - POLICY.OFFICE_CODE is mapped twice (Map(OfficeCode) and References(Office)) and is selected once. Policy HasMany collections other than SubmissionPolicies load lazily and are not selected. - Deferred execution: the method returns the IQueryable typed as IEnumerable<> with no ToList(). The SQL runs when the caller enumerates the result; any further LINQ-to-Objects operators the caller applies are not part of the SQL.

Operations and processes

• Policy output documents

Note: Statements marked with ** could not be confirmed; treat as unknown until verified.

Sources

• Data/SAIF.Data.NHibernate/Repositories/OutputDocuments/PolicyOutputDocumentRepository.cs:53