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Only show unique values in a query in Access 2007

Only show unique values in a query in Access 2007
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In Access 2007, I've created a query and I only want to display the unique values. How do I do this in Access?
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Only show unique values in a query

Only show unique values in a query Icon
I've created a query and I only want to display the unique values. How do I do this in Access?
 

Count of Unique Values in Access Field

Count of Unique Values in Access Field Icon
In the query given below which is done in Access

[code]

The field Count([Q Test].[Contract ID]) lists the count of contract ids including duplicates.

What should I do to let Access Return only count of unique values. For example, there are 100 records having contract id out of which only 10 are unique, balance 90 are repetitions.

While currently access returns 100 for the field, I want access to return 10 which is unique values for the field.
 

Understanding the Field and File Formats of Access 2007

Understanding the Field and File Formats of Access 2007 Icon
One of the most unique changes in the newest version of Microsoft Access, Microsoft Access 2007, is the introduction of new field formats. Most database programs, including all previous versions of Access, allowed only a single value to be stored within each field, but Access 2007 allows users to store multiple values in each field, in effect creating a many to many relationship within the field itself, while hiding the details of the implementation using system tables.
 

Use the Access 2007 Query Wizard

Use the Access 2007 Query Wizard Icon
The Access 2007 query wizard allows you to create queries without using Structured Query Language (SQL), the language normally used to retrieve data from a database. You may specify fields from more than one data source and the query wizard also is able to calculate averages, counts, maximums, minimums and sums. The following steps will show how to use the Access 2007 query wizard.
 

Need help with Reports

Need help with Reports Icon
I am using 2003 version and I am running into some issues.

I designed a form that allows my users to enter values. The values they enter are stored in a table. I have about 5 queries that do some calculations based on the values entered on the form.

I am trying to display the results of these queries on a report. On the main report I have 5 sub reports (1 for each query). When I run the report I want it to display values for each single row in the table.

For this I have set the criteria in the query to accept a unique value (for each row) from user so that it selects only the row with that unique column value but this is not working fine.
 

Update field with Calculation?

Update field with Calculation? Icon
I'm trying to run an update query to count the number of unique values within a field but I keep getting the error

"You tried to execute a query that does not include the specified expression "unique Count" as part of an aggregate function"

UPDATE tbl_BGTFinal SET tbl_BGTFinal.[Unique Count] = Sum(IIf([tbl_BGTFinal].[Unique]=[tbl_BGTFinal].[Unique],1,0));
 

Use an Access 2007 Lookup List

Use an Access 2007 Lookup List Icon
A lookup list in Access 2007 is a column in a table whose values are retrieved from another table or query. They are frequently used to display a list of choices in a combo or list box. A lookup list may be created manually but you should use the Lookup Wizard to create a lookup column whenever possible. The following steps will show how this is accomplished in Access 2007.
 

Prevent duplicate values in a field

Prevent duplicate values in a field Icon
You can prevent duplicate values in a field by creating a unique index. A unique index is an index that requires that each value of the indexed field is unique.
What do you want to do?
* Set a field's Indexed property to Yes (No duplicates)
* Create a unique index for a field by using a data-definition query
 

Request for an Example of eCount SQL

Request for an Example of eCount SQL Icon
I am attempting to do an eCount in Access to return a sum of unique values. I have 1257 records but I know through a physical count, I really only have 315 unique values.

In Column A, I know there are 36 unique Work_IDs - I need an eCount syntax that would provide this.

Then, I need to count the Total number of Work_IDs where the Project Adoption Level only is 1 or 2; or the Assessment Status for the Work_ID is only Closed.
 

Update Query that updates values in one table with values from another table in Access 2007

Update Query that updates values in one table with values from another table in Access 2007 Icon
Learn how to create an update query that updates values in one table with values from another table in Access 2007.