Home   Fees/Services   Access Templates   Tutorials  Tutorial Downloads   Articles   Search   Contact  Privacy  Links
Parent Child Relationships
Detail-Master Query Example
Home > Tutorials > Query Tutorials > Child/Parent Query
 






Query Tutorials Index:
Too Complex Query
Aggregate Query
Not In Operator
Choose Function
Crosstab Query
Date Time Query
Delete Query
External Table Query
Report Filter Query
Group By Query
Having Query Clause
Histogram Query
Access Append Query
Master Detail Update
Order By Query
SQL Parameter Query
Predicate Query
Self Join Query
Scalar SubQuery
Master Detail Query
Select Query
Select Top
Union Query
SQL Update Query
Custom Query Function

 

MultiSelect Parameter Forms Query Tutorial


Access Bottom Up Query / Detail-Master Queries Examples



Are you just starting out on your quest for a small business database? Need some advice or someone to bounce ideas off of? We are happy to chat with you to discuss options to your situation.

Are you looking for an MS Access template database? We have many for sale in our Access Template and Examples Software section.


Select parent records based on the values in a child table - there are times when you need to retrieve master records based on criteria in a detail record.  We will assume that you have two tables in a master detail relationship. The master is M_Employees and the detail is M_Attendance.  These  are linked by the Employee_ID field.  Our goal is to find the name and number of the employees that have missed more than 5 days of work.

Select M_Employees.Name, M_Employees.Emp_Number
From M_Employees
Where M_Employees.Employee_ID in
(Select Employee_ID from M_Attendance
Group By Employee_ID
Having Count(M_Attendance.Day_Missed) >= 5);

Hopefully you can see how to parameterize this detail-master query to select a variable number of missed days. Or, you could use the Choose command to select the count of a different field.

Another bottom up query example:

In this example with have two tables:

1) Customer Orders

2) Customer Order Items

We want to display all customer order records where at least one of the items in the order has not been shipped (shipped_date is null).

Here is the query which supplies the form with data:

SELECT M_Orders.Order_ID, M_Orders.Order_No, M_Orders.Order_Date, M_Orders.Customer FROM M_Orders WHERE (((M_Orders.Order_ID) In (select order_id from M_Order_items where isnull(date_shipped)=true)));

Below is a snapshot of the form displaying the data:

bottom up queries







A Blue Claw Software Design Template:

Subscription Order Control Database
 









A Blue Claw Database Design Article:

Why Choose Microsoft Access
 









Blue Claw Database Design Downloadable Tutorial:
Download Continuous Form Dependent Combo Box  








Microsoft Office:
MS Access 2000 Through Access 2016 & Office 365
 


Contact Information

Copyright 2000-2017 Blue Claw Database Design