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SQL-198: Retrieve GroupAssociation via GroupQuery

This covers four GroupAssociation reads built on the GroupQuery() queryable in GroupService: an unfiltered list, a search by acronym/name substring, a single-row lookup by acronym, and a single-row lookup by id.

Classification

Field Value
SQL ID SQL-198
Operation type Read
Execution method ORM (NHibernate LINQ)
Database Oracle
Schema [unqualified]**
Command type N/A (ORM-generated)
Business object GroupService
Criteria property N/A — ORM
Lifecycle method GroupQuery

Parameters

Parameter Direction Type Max length Description
:searchTermUpper Input String N/A searchTerm.ToUpper(), client-side — filters code_acronym / code_descr
:acronymUpper Input String N/A acronym.ToUpper(), client-side — filters code_acronym
:idUpper Input String N/A id.ToUpper(), client-side — filters code

Tables

Table Access Columns used
GROUP_ASSOCIATION SELECT code, code_descr, phone, code_acronym, association_exp_date, group_representative, group_type_code, parent_group

LINQ statement

Source: Services/SAIF.Services/Groups/GroupService.cs:67 (queryable-property definition). Consumers are at lines 41, 47, 54, and 60.

// Services/SAIF.Services/Groups/GroupService.cs:67
return unitOfWork.GetRepository<groupsDataModel.GroupAssociation>().Query();

// Services/SAIF.Services/Groups/GroupService.cs:41
var dataGroups = GroupQuery().ToList();

// Services/SAIF.Services/Groups/GroupService.cs:47
var dataGroups = GroupQuery().Where(g => g.Acronym.ToUpper().Contains(searchTerm.ToUpper())
                                      || g.Name.ToUpper().Contains(searchTerm.ToUpper())).ToList();

// Services/SAIF.Services/Groups/GroupService.cs:54
var dataGroup = GroupQuery().FirstOrDefault(g => g.Acronym.ToUpper() == acronym.ToUpper());

// Services/SAIF.Services/Groups/GroupService.cs:60
var dataGroup = GroupQuery().FirstOrDefault(g => g.Id.ToUpper() == id.ToUpper());

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
-- Base: GroupQuery() (GroupService.cs:67) — IQueryable only.
-- (1) L41 — GetGroupSearchList()
SELECT GA.code,
       GA.code_descr,
       GA.phone,
       GA.code_acronym,
       GA.association_exp_date,
       GA.group_representative,
       GA.group_type_code,
       GA.parent_group
FROM   group_association GA

-- (2) L47 — GetGroupSearchList(searchTerm)
SELECT GA.code, GA.code_descr, GA.phone, GA.code_acronym, GA.association_exp_date,
       GA.group_representative, GA.group_type_code, GA.parent_group
FROM   group_association GA
WHERE  UPPER(GA.code_acronym) LIKE '%' || :searchTermUpper || '%'
   OR  UPPER(GA.code_descr) LIKE '%' || :searchTermUpper || '%'

-- (3) L54 — GetGroupHeader
SELECT * FROM (
    SELECT GA.code, GA.code_descr, GA.phone, GA.code_acronym, GA.association_exp_date,
           GA.group_representative, GA.group_type_code, GA.parent_group
    FROM   group_association GA
    WHERE  UPPER(GA.code_acronym) = :acronymUpper
) WHERE ROWNUM <= 1;

-- (4) L60 — GetGroup
SELECT * FROM (
    SELECT GA.code, GA.code_descr, GA.phone, GA.code_acronym, GA.association_exp_date,
           GA.group_representative, GA.group_type_code, GA.parent_group
    FROM   group_association GA
    WHERE  UPPER(GA.code) = :idUpper
) WHERE ROWNUM <= 1;

Translation notes: - GroupQuery() is a private method returning IQueryable; consumers are L41, L47, L54, and L60. - FirstOrDefault uses the Oracle10 dialect wrapper SELECT * FROM (...) WHERE ROWNUM <= 1. - No joins appear in this SQL. The AutoMapper profile (L34-35) reads dg.Type.Description for GroupHeader, which lazy-loads the group-type code row in a separate statement; dg.Type.Code is served from the FK.

Operations and processes

Sources

  • Services/SAIF.Services/Groups/GroupService.cs (L67)