ORA-00904: "CUSTID": 无效标识符

【问题标题】：ORA-00904: "CUSTID": invalid identifierORA-00904: "CUSTID": 无效标识符
【发布时间】：2021-08-08 11:35:41
【问题描述】：

create table Customer(
    Custid number (20) primary key,
    Custname char(20),
    phno number(10),
    pan varchar2(20),
    DOB date
    );

create table HomeLoan(
    HLoanid number (20) primary key,
    Amount number(10),
    foreign key(Custid) references Customer(Custid)
    );
    
create table VehicleLoan(
    VLoanid number (20) primary key,
    Amount number(10),
    foreign key(Custid) references Customer(Custid)
    );

执行上述创建表查询时，我收到一个错误

ORA-00904：“CUSTID”：标识符无效

【问题讨论】：

您忘记了最后 2 个表格中的 custid 列。

标签： oracle ora-00904

【解决方案1】：

您忘记在 HomeLoan 和 VehicleLoan 表中创建列 Custid：

CREATE TABLE Customer (
    Custid number(20) PRIMARY KEY,
    Custname CHAR(20),
    phno number(10),
    pan varchar2(20),
    DOB DATE
    );

CREATE TABLE HomeLoan (
    HLoanid number(20) PRIMARY KEY,
    Amount number(10),
    Custid number(20),
    CONSTRAINT fk_customer FOREIGN KEY (Custid) REFERENCES Customer(Custid)
    );

CREATE TABLE VehicleLoan (
    VLoanid number(20) PRIMARY KEY,
    Amount number(10),
    Custid number(20),
    CONSTRAINT fk_customer FOREIGN KEY (Custid) REFERENCES Customer(Custid)
    );

【讨论】：