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Do you have an id on the table?<br />
What are the values of the ID on the duplicated records?<br />

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how many duplicate CONTACT2 rows are we talking about here?<br />

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I found that the redundant rows contained null data, in each field. so i took a backup of the database and deleted the redundant rows with the attached SQL statement:<br />
<br />
&nbsp;
<pre><code class="code-1 nolinks" id="code-8224410"><span>SELECT distinct *</span>
<span>FROM contact2</span>
<span>where UTITLE_DEP is null</span>
<span>and CONTACT2.ACCOUNTNO in </span>
<span>(SELECT accountno</span>
<span>FROM contact2</span>
<span>GROUP BY accountno</span>
<span>HAVING COUNT(*)&gt;1)</span>
<span>order by CONTACT2.ACCOUNTNO</span>
</code></pre>
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Well that should have been... 
<pre><code class="code-1 nolinks" id="code-8224412"><span>DELETE </span>
<span>FROM contact2</span>
<span>where UTITLE_DEP is null</span>
<span>and CONTACT2.ACCOUNTNO in </span>
<span>(SELECT accountno</span>
<span>FROM contact2</span>
<span>GROUP BY accountno</span>
<span>HAVING COUNT(*)&gt;1)</span>
</code></pre>
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<div class="content wysiwyg-content">
There are some duplicate records in Contact2 table. No duplicate records exist in contact1. My Goldmine version 9 database uses an SQL Server 2008 database back end. How do I remove the duplicate and triplicate records, while retaining at least one of the records for each contact in Contacts2 table.
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There are some duplicate records in Contact2 table. No duplicate records exist in contact1. My Goldmine version 9 database uses an SQL Server 2008 database back end. How do I remove the duplicate and triplicate records, while retaining at least one of the records for each contact in Contacts2 table.

How to delete duplicate records from Contact2 table in Goldmine ver 9

Microsoft SQL Server is a suite of relational database management system (RDBMS) products providing multi-user database access functionality.SQL Server is available in multiple versions, typically identified by release year, and versions are subdivided into editions to distinguish between product functionality. Component services include integration (SSIS), reporting (SSRS), analysis (SSAS), data quality, master data, T-SQL and performance tuning.

Microsoft SQL Server

Databases are organized collections of data, most commonly accessed through management systems including schemas, tables, queries and processes that allow users to enter and manipulate the information or utilize it in other fashions, such as with web applications or for reporting purposes.

Databases

Microsoft SQL Server 2008 is a suite of relational database management system (RDBMS) products providing multi-user database access functionality.Component services include integration (SSIS), reporting (SSRS), analysis (SSAS), data quality, master data, T-SQL and performance tuning. Major improvements include the  Always On technologies and support for unstructured data types.