Retrieval using a user-defined function (UDF)
Using the SELECT command to return data and applying a UDF.
The SELECT command can be used to retrieve data from a table while applying a user-defined function (UDF) to it.
Procedure
Use the user-defined function (UDF) fLog()
created previously to retrieve data from a table
cycling.cyclist_points.
cqlsh> SELECT id, lastname, fLog(race_points) FROM cycling.cyclist_points;
![](../images/screenshots/useQueryUDF.png)