ORA-14037: 分区 "P8" 的分区界限过高

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create table T_parttab_str
(
PROVINCE_ID varchar2(8) not null,
MATER_TYPE NVARCHAR2(2)
)
partition by range (PROVINCE_ID)
(
PARTITION p1 VALUES LESS THAN ('2'),
PARTITION p2 VALUES LESS THAN ('3'),
PARTITION p3 VALUES LESS THAN ('4'),
PARTITION p4 VALUES LESS THAN ('5'),
PARTITION p5 VALUES LESS THAN ('6'),
PARTITION p6 VALUES LESS THAN ('7'),
PARTITION p7 VALUES LESS THAN ('8'),
PARTITION p8 VALUES LESS THAN ('9'),
PARTITION p9 VALUES LESS THAN ('10'),
PARTITION p10 VALUES LESS THAN ('11'),
PARTITION p11 VALUES LESS THAN ('12'),
PARTITION p32 VALUES LESS THAN (maxvalue)
)
ORA-14037: 分区 "P8" 的分区界限过高
分区p8的分区界限比P9的大了,按通常的理解9比10小，但是Oracle比较字符串时，会首先从第一个字符比较。因为"9">"1"，所以会认为"9"<"10",所以就出错了。
将上面的改为
create table T_parttab_str
(
PROVINCE_ID varchar2(8) not null,
MATER_TYPE NVARCHAR2(2)
)
partition by range (PROVINCE_ID)
(
PARTITION p1 VALUES LESS THAN ('02'),
PARTITION p2 VALUES LESS THAN ('03'),
PARTITION p3 VALUES LESS THAN ('04'),
PARTITION p4 VALUES LESS THAN ('05'),
PARTITION p5 VALUES LESS THAN ('06'),
PARTITION p6 VALUES LESS THAN ('07'),
PARTITION p7 VALUES LESS THAN ('08'),
PARTITION p8 VALUES LESS THAN ('09'),
PARTITION p9 VALUES LESS THAN ('10'),
PARTITION p10 VALUES LESS THAN ('11'),
PARTITION p11 VALUES LESS THAN ('12'),
PARTITION p32 VALUES LESS THAN (maxvalue)
)

建议：范围分区时，分区键尽量不用字符型。如果字符型时要注意保持字符位数一致以避免出现意想不到的情况。

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