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01.27.2007 at 02:23AM PST, ID: 22139007
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7.8

Help on SQL query from 3 tables

Asked by mechanism in Microsoft Access Database

Tags: , , ,

This is what I have:

Table COMPANY_EMPLOYEES; fields ID (int), NAME (text), SURNAME (text), SPECIALTY (text), DEPARTMENT (->COMPANY_DEPARTMENTS.CODE)
Table COMPANY_DEPARTMENTS; fields CODE (int), DESCRIPTION (text), HEAD (->COMPANY_EMPLOYEES.ID)
Table COMPANY_PROJECT; fields CODE (int), TITLE (text), BUDGET (double), TYPE (values 'PUBLIC' or 'PRIVATE'), CHIEF (->COMPANY_EMPLOYEES.ID)

also I have

Table PROJECTS_TEAMS; fields EMPLOYEE(->COMPANY_EMPLOYEES.ID), PROJECT(->COMPANY_PROJECT.CODE)

As you might have guessed, I've got projects ran by employees found in PROJECT_TEAMS table (which contains no supervisors) and each project has a supervisor (in table COMPANY_PROJECT, field CHIEF) which is a record in COMPANY_EMPOLOYEES (and is NOT included in table PROJECT_TEAMS).

I need 2 things:
1) A query for displaying projects teams per project (chief AND team members)
and, a bit more complicated
2) A query for "simple" and "complex" projects, "SIMPLE" being projects where chief and employees are all from the same COMPANY_DEPARTMENT and "COMPLEX" being the projects where one or more employees (either chief or team member) belong to different COMPANY_DEPARTMENTS. This has to be per COMPANY_PROJECT.TYPE (PUBLIC and PRIVATE) and per COMPANY_PROJECT.BUDGET

Can you please assist me on that?


Thanx,

Nick




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Keywords: Help on SQL query from 3 tables
Title
1 SQL query for surnames from A to Z
2 A-Z search for Surname
3 AutoNumber & Surname
4 Grouping Customer Surnames
5 MySQL query by Surnames
6 Employee-Supervisor query
 
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Zone: Microsoft Access Database
Tags: 3, tables, query, sql
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Solution Provided By: harfang
Participating Experts: 2
Solution Grade: A
 
 
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