Question

so i have two tables, and i want to get all the rows from table 1 that meet the where clause conditions, and then join them with table two based on the join conditions.

here are the sample tables:

table1:

col1   col2  col3
1      a     val1
2      b     val2
3      c     val3

table2:

col1   col3
1      someval1
2      someval2
3      someval3

now i want to grab all the rows in table 1 where col1 = 2, and join those rows with rows from table2 where table2.col1 = table1.col1. Does that make sense?

Answer 1

It’s been a while since I wrote CI, but as per this docs page, your solution might look like this:

$this->db->select('*');
$this->db->from('table1');
$this->db->join('table2', 'table1.col1 = table2.col1');
$this->db->where('table1.col1', 2);

$query = $this->db->get();

note this answer is in no way to be construed as an endorsement of working with Code Igniter 😉