不使用主键将CSV文件导入到Mysql表

Question

im trying to import a csv file containing these columns:

foreignKey, date, lobby

so, mysql table should look like this:

CREATE TABLE Patient( 
foreignKey int not null, 
date datetime not null, 
lobby int not null, 
foreign key(foreignKey)references Foreign(Id));

as you noticed, my table does not have a primary key, I tried to add JPA entities to my project, but it does not recognize this tables due table does not have a PK.

Any advices about this issue on my code fellas?

kudos!

Answer 1

I would suggest adding a primary key to the table with auto_integer

You should be able to import your CSV with LOAD DATA INFILE :

load data local infile 'myData.csv' 
into table Patient fields terminated by ','
enclosed by '"'
lines terminated by '\n'
(foreignKey, date, lobby)

Make sure to remove headings from the CSV and change the delimiters as per your CSV file if necessary.

LOAD DATA INFILE - MySQL

Answer 2

我必须使用JDBC驱动程序连接到数据库，真正不需要外部表上的主键，因此，我在数据库的每个表上创建了通用存储库