How can i add a new entry into a mysql table, BUT only for 1 column, while keeping all other column data

Question

So i have the following table

but when i run the following command:

"INSERT INTO default_db.loader_messages (confirmation_secure_radio_button_message) VALUES ('$confirmmessagevalue1')";

it adds a new row, but empties the loader_message1 column as you can see above.

please tell me how do i keep the current data in the loader_message1 column as well as add a new row ?

Answer 1

If you can change from an insert..values to insert..select then you could

drop table if exists t;
create table t (id int auto_increment primary key,col1 varchar(10),col2 varchar(10));
insert into t (col1) values ('col1');
insert into t (col1,col2) 
    select col1,'aaa'
    from t where id = (select max(id) from t)
;
insert into t (col1) values ('xxx');
insert into t (col1,col2) 
    select col1,'bbb'
    from t where id = (select max(id) from t)
;

select * from t;

+----+------+------+
| id | col1 | col2 |
+----+------+------+
|  1 | col1 | NULL |
|  2 | col1 | aaa  |
|  3 | xxx  | NULL |
|  4 | xxx  | bbb  |
+----+------+------+
4 rows in set (0.02 sec)

if this is not a possibility for you then consider capturing in your front end before inserting or inserting in a procedure and fill down after the insert using an update.

Answer 2

I mentioned that it is a poor design to replicate column value to multiple rows.

Still...you shall

select loader_message1 from dbname where yourcondition;

get the mysqli result into $row and then using

$row['loader_message1'] or $row[0]

in the insert like

insert... (fld1, fld2) values (value1, value2)