Created by Denny Hood

Access Queries IVComputer Science 101, WVU

Table of Contents

• Use Existing Query

in New Query

• Copy Query

• Wildcard Queries

• Unique Values Query

• Parameter Query

• Updating Records Query

• Delete Records Query

Use Existing Query in New Query

• Create ribbon

• Query Design

• Show Table• Queries Tab

• Add existing query

Use Existing Query in New Query

• Add fields from existing query

• Click Run

Use Existing Query in New Query

• The new query will only show added fields from the old query

Copy Query

• Click the query in Query Objects

• Right click

• Select Copy

• Right click in white space in Query Objects

• Select Paste

Copy Query

• Rename “Copy Of QueryXX” to new name

• Click OK

Copy Query

• In the Query Objects you shouldsee your copied query

• The copied query will be identical to the original query in design and datasheet views

Use Wildcards In Query Criteria

• Create Ribbon

• Query Design

• Add fields to query

• In the criteria row for wildcard:• Like keyword

• * text before (may or may not need it)

• text word we are looking for

• * text after (may or may not need it)

Use Wildcards In Query Criteria

• Click Run

• After you run the query,you will only see resultsthat meet the wildcardcriteria

• In this example, the Counties field must have a (P) somewhere in it

Display Unique Values In Query

• Create ribbon

• Query design

• Add fields to query

• In the gray space of thequery, right click• Choose Properties…

Display Unique Values In Query

• In the Property Sheet, make sure the Selection type: Query Properties is shown

• Change the Unique Values to Yes

• Close the Property Sheet

• Click Run

Display Unique Values In Query

• After you run the query, no two records will be alike

• In this example, the query will only show each name one time even if they won more than one election

Use Parameters In A Query

• Create Ribbon

• Query Design

• Add fields to query

• In the criteria row:• [

• “text to display on screen”

• ]“text to display on screen” Is what you want to display to prompt the user for input

Use Parameters In A Query

• Click Run

• In this example, the prompt says “Enter the Election Year”

• Enter a valid year

• Click OK

Use Parameters In A Query

• In this example only the records for 2012 are shown

• We can run this query again and input a different year to see the election results for that year instead of opening the query in design view and changing the criteria each time

Updating Records Query

• WARNING: update records query will change data in your tables PERMANENTLY

• In this example, we are going to update the Year field for the record with Incumbent name “Denny Hood”

Updating Records Query

• Create ribbon

• Query Design

• Add table with record to update

• Change Query Type to Update inthe Query Type Group

• Add Update To: value and Criteria: value

We are going to change the year in the Elections table for records with 1999 to 2016

Updating Records Query

• Click Run

• Access will warn you about how many rows are going to be updated

• Click Yes

Updating Records Query

• In this example, the record with 1999 as the year has been updated and now the year is 2016

Delete Records Query

• WARNING: delete records query will remove data from your tables PERMANENTLY

• In this example, we are going to remove the record with Incumbent name “Denny Hood”

Delete Records Query

• Create ribbon

• Query Design

• Add table with records to remove

• Add field(s) that contain values in records you want to remove

• Change Query Type to Delete in the Query Type Group

• Add the criteria for records you wish to delete

Delete Records Query

• Click Run

• Access will warn you about how many records are going to be deleted

• Click Yes

Delete Records Query

• In this example, the record with “Denny Hood” as the Incumbent name has been removed and now there is one less record in the table