如果在追加表分區失敗其中有一個原因是：在原分區中設置了最大值分區，需要將其刪除後才能進行按序追加。
如：原分區爲：
ALTER TABLE ef_areas_month PARTITION BY RANGE COLUMNS(months)(
PARTITION M01 VALUES LESS THAN ('201901'),
PARTITION M02 VALUES LESS THAN ('201902'),
PARTITION M03 VALUES LESS THAN ('201903'),
PARTITION M04 VALUES LESS THAN ('201904'),
PARTITION M05 VALUES LESS THAN ('201905'),
PARTITION M06 VALUES LESS THAN ('201906'),
PARTITION M07 VALUES LESS THAN ('201907'),
PARTITION M08 VALUES LESS THAN ('201908'),
PARTITION M09 VALUES LESS THAN ('201909'),
PARTITION M10 VALUES LESS THAN ('201910'),
PARTITION M11 VALUES LESS THAN ('201911'),
PARTITION M12 VALUES LESS THAN ('201912'),
PARTITION M13 VALUES LESS THAN ('202001'),
PARTITION MMAX VALUES LESS THAN MAXVALUE
);
如果想再後面順序追加分區則需要刪除MMAX的分區才能往後追加。
ALTER TABLE ef_areas_fixmonth DROP PARTITION MMAX; -- 如果有MAXVALUE分區，則將其刪除後再追加分區
ALTER TABLE ef_areas_fixmonth ADD PARTITION (PARTITION M14 VALUES LESS THAN ('202002'));
ALTER TABLE ef_areas_fixmonth ADD PARTITION (PARTITION M15 VALUES LESS THAN ('202003'));
ALTER TABLE ef_areas_fixmonth ADD PARTITION (PARTITION M16 VALUES LESS THAN ('202004'));
ALTER TABLE ef_areas_fixmonth ADD PARTITION (PARTITION M17 VALUES LESS THAN ('202005'));
ALTER TABLE ef_areas_fixmonth ADD PARTITION (PARTITION M18 VALUES LESS THAN ('202006'));
ALTER TABLE ef_areas_fixmonth ADD PARTITION (PARTITION M19 VALUES LESS THAN ('202007'));
ALTER TABLE ef_areas_fixmonth ADD PARTITION (PARTITION M20 VALUES LESS THAN ('202008'));
ALTER TABLE ef_areas_fixmonth ADD PARTITION (PARTITION M21 VALUES LESS THAN ('202009'));
ALTER TABLE ef_areas_fixmonth ADD PARTITION (PARTITION M22 VALUES LESS THAN ('202010'));
ALTER TABLE ef_areas_fixmonth ADD PARTITION (PARTITION M23 VALUES LESS THAN ('202011'));
ALTER TABLE ef_areas_fixmonth ADD PARTITION (PARTITION M24 VALUES LESS THAN ('202012'));
ALTER TABLE ef_areas_fixmonth ADD PARTITION (PARTITION M25 VALUES LESS THAN ('202101'));
ALTER TABLE ef_areas_fixmonth ADD PARTITION (PARTITION MMAX VALUES LESS THAN (MAXVALUE));