<div>
Thanks<br />
Watch for another question
</div>


<div>
<div class="content wysiwyg-content">
I have a subform which is linked on ClientID = CLientID parent to child<br />
<br />
There is another field visitID in both parent and child (visitID)<br />
<br />
I need a link on parent and subform where the parent visitID = child.visitID OR a NULL value.<br />
<br />
Heres the reason...<br />
The child table is a contacts history table and can have replicated contact's because they will on multiple visits over the years
</div>
</div>


I have a subform which is linked on ClientID = CLientID parent to child

There is another field visitID in both parent and child (visitID)

I need a link on parent and subform where the parent visitID = child.visitID OR a NULL value.

Heres the reason...
The child table is a contacts history table and can have replicated contact's because they will on multiple visits over the years

MS Access VBA Filter

Microsoft Access is a rapid application development (RAD) relational database tool. Access can be used for both desktop and web-based applications, and uses VBA (Visual Basic for Applications) as its coding language.

Microsoft Access

Most development for the Microsoft platform is done utilizing the technologies supported by the.NET framework. Other development is done using Visual Basic for Applications (VBA) for programs like Access, Excel, Word and Outlook, with PowerShell for scripting, or with SQL for large databases.

Microsoft Development

Microsoft applications include a variety of software programs, including development and digital authoring programs (Expression and Media Center), educational programs, Internet software, including Essentials, Skype and the Live family, anti-virus, productivity applications and suites like Office, Excel, Word, Outlook, Access and PowerPoint, video games and server applications such as Exchange, SharePoint, IIS and Virtual Server.