試題詳解

QUESTION 88 You have a table with the following definition: CREATE TABLE long_tab ( id NUMBER) long_col LONG) You need to convert the LONG_COL column from a LONG data type to a LOB data type. Which statement accomplish this task?
(A) AKTER TABLE long_tab MODIFY (LONG_COL CLOB);
(B) EXECUTE dbms_lob.migrate(long_tab, long_col, clob)
(C) EXECUTE dbms_manage.lob.migrate(long_tab, long_col, clob)
(D) EXECUTE utl_lob.migrate(long_tab, long_col, clob)
(E) EXECUTE utl_manage_lob.migrate(long_tab, long_col, clob)