Question

I’ve got this problem.. it’s soon not problem, but i want not to use more than one query if it is possible.

i want to insert data in the table using data from another table. here’s example:
i have table1:

TABLE1
id  name  value  max_data  diff

AND Here’s is table2

TABLE2
id name max_data
1  nm1  8000
2  nm2  9000
3  nm3  9500
4  nm4  9600
...

While inserting i know id from table2 and i want to use name and max_data from it. Something like this:

INSERT INTO table1 (value, diff, name, max_data) VALUES (5.0, -0.3, table2.name table2.max_data) WHERE table2.id = 3

Answer 1

Do you mean this?

insert into table1 (value, diff, name, max_data)
select 5.0, -0.3, name, max_data
from table2
where id = 3

You can include whatever literals you want in a SELECT clause. You can also use this technique to insert multiple rows at once.