Add Prefix to auto-increment in mysql db

Question

I have my database with table test1. It has a primary id \"Id\" which is auto-increment. Now the id is in the format 1,2,3.. . .Is it possible to store the primary Id as PNR

Answer 1

Hi, I made it work in this way :

Products Table (products):

id_prod(varchar(11), NOT NULL, PK), name(varchar(40))

Products Sequence Table (productidseq):

id(AI, PK, NOT NULL)

Before Insert Trigger in Products Table:

CREATE DEFINER=`root`@`localhost` TRIGGER `dbname`.`products_BEFORE_INSERT` BEFORE INSERT ON `products` FOR EACH ROW
BEGIN
insert into productidseq (id) values(NULL);
set new.id_prod = concat('PROD or any prefix here',last_insert_id());
set @productId = new.id_prod; -- To use outside of trigger this variable is useful.
END

When you run below query :

insert into products (name) values('Bat');

data inside tables will we be like this :

products:

id | name
---|-----
 1 | Bat

productidseq:

id 
---
 1 

If any better way than this or any cons with this, please comment below. Thanks.