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AFAIK and I could be wrong but You will have to recreate the connection.<br />
<br />
Sid
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AFAIK and I could be wrong but You will have to recreate the connection.

Sid

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On the Table Tools menu click refresh-&gt;Connection Properties.<br />
In the Definition tab it should list the command text which you should be able to modify to get the column back.
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On the Table Tools menu click refresh->Connection Properties.
In the Definition tab it should list the command text which you should be able to modify to get the column back.

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This worked and it didn't overwrite the new columns I manually added to the table. Perfect!!
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This worked and it didn't overwrite the new columns I manually added to the table. Perfect!!

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I have created a connection using the Microsoft OLE DB Provider for Oracle. After deleting several columns (from the Excel table created from the connection), I realized that I needed one of the deleted columns. Is there anyway to add the column to the table? 
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I have created a connection using the Microsoft OLE DB Provider for Oracle. After deleting several columns (from the Excel table created from the connection), I realized that I needed one of the deleted columns. Is there anyway to add the column to the table? 

Add Column from External Database in Excel 2010

Microsoft Excel topics include formulas, formatting, VBA macros and user-defined functions, and everything else related to the spreadsheet user interface, including error messages.

Microsoft Excel

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.