Question

I hoping someone can help me with a MySQL query.

I am trying to create a query in a MySQL database that finds all rows that matches a string ‘foo’ in column_1 of Table_A and then searches those rows with ‘foo’ and for all values of ‘bar’ in column_2 of Table_A returns all rows in Table_b that contain ‘bar’ in column_8.

My starting query is:

SELECT * FROM TABLE_A WHERE column_1 LIKE 'foo';

The above query only finds all data that matches a string ‘foo’ in column_1 of Table_A. What code do I need to add to take the above results and use Table_A column_2 to search for matches in column_8 of Table_B? I can’t seem to figure out how to perform this query.

Thanks in advance for any help you can provide.

Answer 1

Its not clear from your description if this is right but it sounds like you’re looking for a JOIN

SELECT * 
FROM 
    TABLE_A a
  INNER JOIN TABLE_B b 
  ON a.column_2 = b.column_8
 WHERE 
    a.column_1 LIKE 'foo'
     and a.column_2 = 'bar'