The following example opens the Big sample data table (making it the current data table), and then specifies row 2 in the weight column. A value of 123 is returned in the log, which is the weight for Louise in row 2.
To get a value in a data column reference, use Column() and As Column() to get the value in a data column reference. For more information, see Access Cell Values through Column References.
An empty subscript, such as :age[ ], refers to the current row.
In order to speed up changes, use Begin Data Update before the changes to block these update messages. Use End Data Update after the changes have been completed to release the messages and update the displays.
Be sure to always send the End Data Update message, otherwise the display is not updated until forced to do so in some other way.