>Hi all,
>
>When I do a SELECT SQL, can I use a function to do calculation and return to a cursor? Example: SELECT cnoee, dmysum(yamt1+yamt2+...) from dpayrslt. If yes, how does the SQL knows what type and how many decimal it should create for the second field?
>
>Actually I have done the above and the second field it returns currency which I wants. When I change the SQL to SELECT dpayrslt.cnoee,demas.cname,dmysum(yamt1+yamt2+....) from demas,dpayrslt where demas.cnoee=dpayrslt.cnoee, the second field becomes numeric 1? Why and how I overcome this?
>
>Thanks in advance.


Question 1) Yes, you can use UDFs in SQL SELECTs, but if the function changes work areas, your select may return unpredictable results.

Question 2) Foxpro assigns the type to the column based on the first row returned. Therefore, any result returned from the UDF should be padded to the maximum width to ensure the proper format is used. If using a numeric with decimals, make sure that set decicals is on and set to the number that you wish to use, at least within the function.

HTH

Matt