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FUNCTION xpfGetFunctionHandleBN  (expressSchemaName      : STRING;
                                  querySchemaName        : STRING;  -- optional. Default is that all query schemas for "expressSchemaName" will be searched
                                  functionName           : STRING)  -- query, function or procedure
                                  functionHandle         : INTEGER; -- handle to actual query, function or procedure
                                        
 
FUNCTION xpfGetFunctionHandle  (querySchemaHandle        : INTEGER;
                                functionName             : STRING)  -- query, function or procedure
                                functionHandle           : INTEGER; -- handle to actual query, function or procedure
 
FUNCTION xpfExecuteFunction (functionHandle               : INTEGER; -- handle to actual query, function or procedure
                             argument1, ..., argumentN    : GENERIC) -- arguments to actual called query, function or procedure
                             functionValue                : GENERIC; -- always INDETERMINATE for procedures
 
FUNCTION xpfExecuteFunctionEX (functionHandle               : INTEGER; -- handle to actual query, function or procedure
                               globalVariablesHandle        : INTEGER; -- optional. Default is current global variables
                               dataModelId                  : GENERIC; -- optional. Default is current data model
                               dataModelAcessMode           : INTEGER; -- optional. Default is xpxRO. LATER: xpxAddModelToActiveTransaction if xpxRW
                               argument1, ..., argumentN    : GENERIC) -- arguments to actual called query, function or procedure
                               functionValue                : GENERIC; -- always INDETERMINATE for procedures
                                                     
 
FUNCTION xpfExecuteFunctionBN (expressSchemaName            : STRING;
                               querySchemaName              : STRING;  -- optional. Default is that all query schemas for "expressSchemaName" will be searched
                               functionName                 : STRING;  -- query, function or procedure
                               argument1, ..., argument     : GENERIC) -- arguments to actual called query, function or procedure
                               functionValue                : GENERIC; -- always INDETERMINATE for procedures
 
FUNCTION xpfExecuteFunctionEXBN (expressSchemaName            : STRING;",
                                 querySchemaName              : STRING;  -- optional. Default is that all query schemas for "expressSchemaName" will be searched
                                 functionName                 : STRING;  -- query, function or procedure
                                 globalVariablesHandle        : INTEGER; -- optional. Default is current global variables
                                 dataModelId                  : GENERIC; -- optional. Default is current data model
                                 dataModelAcessMode           : INTEGER; -- optional. Default is xpxRO. LATER: xpxAddModelToActiveTransaction if xpxRW
                                 argument1, ..., argument     : GENERIC) -- arguments to actual called query, function or procedure
                                 functionValue                : GENERIC; -- always INDETERMINATE for procedures
                                       

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