I want to convert nvarchar to ascii value, So I want to create udf function, but i don't know to execute the function.
please anyone know, give me the solutions
asked Oct 25, 2009 at 10:52 AM in Default
A scalar function is basically an expression. You use it in a query just as you would a column name, variable, or formula. Obviously you have to pass parameters to it in the query.
Although this is outside the scope of your question, a scalar function should not be confused with a table-valued function. A scalar function produces a single result value, while a table-valued function can produce a set of rows and is used either like a table, or in conjunction with APPLY. Inline table-valued functions are treated much like views by the optimizer and can produce performance benefits over scalar functions when applied to a large number of rows.
answered Oct 25, 2009 at 11:09 AM
Say you have created that UDF - then you would call it with
So you might say
However, in this case, you would be well advised to use the ASC built in function.