Microsoft Access 2010 Bible

(Rick Simeone) #1

Chapter 18: Advanced Access Query Techniques


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Property Description Select Crosstab Update Delete Make-Table Append


Subdatasheet
Height


Maximum height
of subdatasheet

XX X X X

Subdatasheet
Expanded


Records initially in
their expanded
state?

XX X X

Filter On Load Forms bound to
query have Filter
On Load set by
default


X

Order By On
Load


Forms bound to
query have Order
By On Load set by
default

X

Column
Headings


Fixed-column
headings

X

Use Transaction Run action query
in transaction?


XXX X

Fail on Error Fail operation if
errors occur


XX

Destination
Table


Table name of
destination

XX

Destination DB Name of database X X


Dest Connect
Str


Database
connection string

XX

Working with queries offers many options for how the fields can be displayed and properties for
each specific type of query.

The remainder of this chapter works with advanced options for select queries.

Creating Queries That Calculate Totals


Many times, you want to find information in your tables based on data related to the total of a par-
ticular field or fields. For example, you may want to find the total number of contacts that are both
buyers and sellers or the total amount of money each buyer has spent on products last year. Access
supplies the tools to accomplish these queries without the need for programming.

Access performs totals calculations by using nine aggregate functions that let you determine a spe-
cific value based on the contents of a field. For example, you can determine the average price for
products by type, the maximum and minimum price paid for a product, or the total count of all
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