如何在单个查询中针对单个category_id添加多个product_id

Question

I have a table -> table_product_categories - "product_id", "category_id"

I want to add multiple product ids (that are in range) against each category. How can i do that?

I am using:

insert into table_product_categories values (11, 1);
insert into table_product_categories values (12, 1);
insert into table_product_categories values (13, 1);

Is there any way where we can achieve the same in single query?

Devesh

Answer 1

You can't generate sequence numbers in MySQL. You could use a temporary table with sequence numbers to achieve that

insert into table_product_categories 
select seq_num, 1
from your_temp_table
where seq_num between 11 and 30
order by seq_num asc

Answer 2

You can add multiple rows in single query.

insert into table_product_categories values (11, 1), (12,1), (13,1);

To add range you should iterate to that range and make a string like (11, 1), (12,1), (13,1) . Then execute a query.