IBM DB2 9 Fundamentals certification exam answer key
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The correct answers are A and B: -- VALUES degf_to_c(32) and SELECT date, degf_to_c(temp) AS temp_c FROM temp_data.
How a user-defined function is invoked depends a lot on what it has been designed to do; scalar user-defined functions can be invoked as an expression in the select list of a query while table and row functions must be referenced by the FROM clause.
Because theuser-defined function used in this example is a scalar function that only returns a single value...
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