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Excel Spreadsheet Automation with the QUERY Formula

Pull data, automate spreadsheets, and more with the QUERY formula.

The CData Excel Add-In for Quandl provides formulas that can edit, save, and delete Quandl data.The following three steps show how you can automate the following task: Search Quandl data for a user-specified value and then organize the results into an Excel spreadsheet.

The syntax of the CDATAQUERY formula is the following: =CDATAQUERY(Query, [Connection], [Parameters], [ResultLocation]);

This formula requires three inputs:

  • Query: The declaration of the Quandl data records you want to retrieve or the modifications to be made, written in standard SQL.
  • Connection: Either the connection name, such as QuandlConnection1, or a connection string. The connection string consists of the required properties for connecting to Quandl data, separated by semicolons.

    Quandl uses an API key for authentication. See the help documentation for a guide to obtaining the APIKey property.

    Additionally, set the DatabaseCode connection property to the code identifying the Database whose Datasets you want to query with SQL. You can search the available Databases by querying the Databases view.

  • ResultLocation: The cell that the output of results should start from.

Pass Spreadsheet Cells as Inputs to the Query

The procedure below results in a spreadsheet that organizes all the formula inputs in the first column.

  1. Define cells for the formula inputs. In addition to the connection inputs, add another input to define a criterion for a filter to be used to search Quandl data, such as Collapse.
  2. In another cell, write the formula, referencing the cell values from the user input cells defined above. Single quotes are used to enclose values such as addresses that may contain spaces.
  3. =CDATAQUERY("SELECT * FROM AAPL WHERE Collapse = '"&B3&"'","APIKey="&B1&";DatabaseCode="&B2&";Provider=Quandl",B4)
  4. Change the filter to change the data.