mysql - 如何修复字段中的错误 #1054 未知列

Question

这是我的 table 。

create table Property(
p_id int(4) null primary key,
p_address varchar(120) not null,
c_id int(4) not null,
foreign key (c_id) references customer (c_id)
);


insert into Property values
('2001','Elm_House_11_Short_Lane_Hertfordshire_H5_667',’3001’);

insert into Property values 
('2002','Jainlight_House_Apple_Lane_Kent_K7_988',’3002’);

insert into Property values
('2003','Excelsior_House_23_Oracle_Centre_Reading',’3003’);

insert into Property values ('2004','27_Wroxton_Road_London_SE15',’3004’);

我在输入此数据时不断收到未知列错误。

Answer 1

插入 int 值时删除引号和反引号:

insert into Property values
(2001,'Elm_House_11_Short_Lane_Hertfordshire_H5_667',3001);

insert into Property values 
(2002,'Jainlight_House_Apple_Lane_Kent_K7_988',3002);

insert into Property values
(2003,'Excelsior_House_23_Oracle_Centre_Reading',3003);

insert into Property values (2004,'27_Wroxton_Road_London_SE15',3004);

仅当您使用 char 字段时才需要引号，反引号是表名或列名的转义字符。