sql - 什么会导致 ORA-01722：列类型为 NUMBER 时出现无效数字错误

Question

Oracle Database 12c Enterprise Edition Release 12.1.0.2.0 - 64bit Production 0 PL/SQL Release 12.1.0.2.0 - Production 0 CORE 12.1.0.2.0 Production 0 TNS for Linux：版本 12.1.0.2.0 - Production 0 NLSRTL 版本12.1.0.2.0 - 生产 0

我有一个名为 tkd_gl1 的复杂视图

SQL> desc tkd_gl1

Name                     Null?    Type
------------------------ -------- --------------
PRODUCT_FAMILY_ID        NOT NULL NUMBER
APPLICATION_ID           NOT NULL NUMBER
PROC_TYPE_ID             NOT NULL NUMBER
REG_PACKSET_ID           NOT NULL NUMBER
REGISTRATION_ID          NOT NULL NUMBER
PACKSET_SPECIFICATION_ID NOT NULL NUMBER
PRODUCT_ID               NOT NULL NUMBER
REG_PACK_COUNTRY_ID      NOT NULL NUMBER
REG_PACKSET_COUNTRY_ID   NOT NULL NUMBER
PRODUCT_DETAIL_SET_ID    NOT NULL NUMBER
SUBSTANCE_ID             NOT NULL NUMBER
LOCAL_APPROVED_CHANGE_ID          NUMBER
Regulatory Action Type            VARCHAR2(500)
Comments                          VARCHAR2(4000)
Reviewing Country Name   NOT NULL VARCHAR2(500)
Basis Label Country      NOT NULL VARCHAR2(500)
CPP Reference Country    NOT NULL VARCHAR2(500)



select count(*) from tkd_gl1;
select distinct product_family_id from tkd_gl1;
select product_family_id from tkd_gl1;
select min(product_family_id),max(product_family_id) from tkd_gl1;
select product_family_id from tkd_gl1;

--所有这些都返回 ORA-01722