3.3.40 DROP FUNCTION

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3 The SQL Language : 3.3 SQL Commands : 3.3.40 DROP FUNCTION

DROP FUNCTION -- remove a function
[ ([ [ argmode ] [ argname ] argtype ] [, ...]) ]
DROP FUNCTION removes the definition of an existing function. To execute this command you must be a superuser or the owner of the function. All input (IN, IN OUT) argument data types to the function must be specified if there is at least one input argument. (This requirement is not compatible with Oracle databases. In Oracle, only the function name is specified. Advanced Server allows overloading of function names, so the function signature given by the input argument data types is required in the Advanced Server DROP FUNCTION command.)
The mode of an argument: IN, IN OUT, or OUT. If omitted, the default is IN. Note that DROP FUNCTION does not actually pay any attention to OUT arguments, since only the input arguments are needed to determine the function’s identity. So it is sufficient to list only the IN and IN OUT arguments. (Specification of argmode is not compatible with Oracle databases and applies only to Advanced Server.)
The name of an argument. Note that DROP FUNCTION does not actually pay any attention to argument names, since only the argument data types are needed to determine the function’s identity. (Specification of argname is not compatible with Oracle databases and applies only to Advanced Server.)
The data type of an argument of the function. (Specification of argtype is not compatible with Oracle databases and applies only to Advanced Server.)

3 The SQL Language : 3.3 SQL Commands : 3.3.40 DROP FUNCTION

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