Verify attribute content

[lordfrodo]

Im trying to get the DBMS to make sure that my update / inserts only contains valid chars A´-> Z and numbers 0-9 - is that possible ?
Brgds Claus

[spider007]

I am not very sure, but i think you can create a c function (udf) and then use it in some trigger on that table. Again i am not sure whether udf can be called inside a trigger or not