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dbms_xs_system_ffi.block_principal_changes(bpc IN BOOLEAN);
exec dbms_xs_system_ffi.block_principal_changes(FALSE);
BEGIN dbms_xs_system_ffi.block_principal_changes(FALSE); END;
*
ERROR at line 1:
ORA-06521: PL/SQL: Error mapping function
ORA-06512: at "SYS.DBMS_XS_SYSTEM_FFI", line 3
ORA-06512: at line 1
dbms_xs_system_ffi.check_xsCallback(granted OUT BOOLEAN);
DECLARE
b BOOLEAN;
BEGIN
dbms_xs_system_ffi.check_xsCallback(b);
IF b THEN
dbms_output.put_line('TRUE');
ELSE
dbms_output.put_line('FALSE');
END IF;
END;
/ TRUE
dbms_xs_system_ffi.check_xsProvision(granted OUT BOOLEAN);
DECLARE
b BOOLEAN;
BEGIN
dbms_xs_system_ffi.check_xsProvision(b);
IF b THEN
dbms_output.put_line('TRUE');
ELSE
dbms_output.put_line('FALSE');
END IF;
END;
/ TRUE