Question

I have the following tables:

Table A:
id int
v1 string
v2 string

Table B:
key int
val string

Table A_v2:
id int
v1 int
v2 int

I have data loaded in tables A and B. I am trying to convert table A to table A_v2, by replacing each value (in columns v1 and v2) with the corresponding key from table B.

I hope this makes sense. If not I can give an example.
I am using SQLite.

How would I write the insert?

EDIT
Here is an example:

Row in A:
1 | abc | def

Rows in B:
5 | abc
42 | def

Row in A_v2 should then be:
1 | 5 | 42

Answer 1

As what I understood is .. you want to replace V1 and V2 column of TABLE_A with value of column VAL in TABLE_B.

if so you can use following query ..

create table table_a_v2 as 
       select * from table_a where 1>1;

and to insert into this table –

insert into table_a_v2 
select a.id,
       (select key from table_b whare val= a.v1) v1,
       (select key from table_b whare val= a.v2) v2
 from table_a

I am not much sure about sqlite .. but this commands are valid and working as per oracle database.