In this test, a tall, thin tube holds a sample of your blood. The speed at which the red blood cells fall to the bottom of the tube is measured. Inflammation can cause abnormal proteins to appear in your blood. These proteins cause your red blood cells to clump together.
From Wikipedia, the free encyclopedia. A user-defined function (UDF) is a function provided by the user of a program or environment, in a context where the usual assumption is that functions are built into the program or environment. 1 BASIC language.
A user-defined function (UDF) is a function provided by the user of a program or environment, in a context where the usual assumption is that functions are built into the program or environment.ser-defined functions in SQL are declared using the CREATE FUNCTION statement. For example, a function that converts Celsius to Fahrenheit might be declared like this: Once created, a user-defined function may be used in expressions in SQL statements.