Oracle统计用户所有表的行数

DECLARE  CURSOR c1 is select table_name from user_tables;  V_TABLE_NAME user_tables.TABLE_NAME%TYPE;  V_CNT number;  V_SQL varchar2(2000);BEGIN  FOR V_TABLE_NAME in c1 loop     V_SQL := 'select count(1) from ' || V_TABLE_NAME.table_name;     execute immediate V_SQL into V_CNT;     dbms_output.put_line( V_TABLE_NAME.table_name || ',' ||  V_CNT);  end loop;end;