Question

I have two tables:

table_a:

ID    |    NAME    
===============
1     |    DAN
2     |    RON
3     |    JANE

table_b:

ID    |    TEXT    
===============
2     |    APPLE
2     |    BANANA
2     |    COFFEE

I need to get the results for ID 2.
I was thinking that even if I got a string containing the TEXT’s values for ID 2 from table_b would be great for example:

ID     |    NAME    |    TEXT
=============================
2      |    RON     | APPLE,BANANA,COFFEE

Is this even possible?

Answer 1

SELECT
    A.*,GROUP_CONCAT(B.`TEXT`) `TEXT`
FROM
    table_a A INNER JOIN table_b B USING (ID)
WHERE A.ID=2;

Here is a sample

mysql> DROP TABLE IF EXISTS table_a;
Query OK, 0 rows affected (0.03 sec)

mysql> DROP TABLE IF EXISTS table_b;
Query OK, 0 rows affected (0.03 sec)

mysql> CREATE TABLE table_a
    -> (ID int not null auto_increment,
    -> NAME VARCHAR(20),primary key (ID));
Query OK, 0 rows affected (0.13 sec)

mysql> CREATE TABLE table_b
    -> (ID int not null,`TEXT` TEXT,key (ID));
Query OK, 0 rows affected (0.06 sec)

mysql> INSERT INTO table_a (NAME) VALUES ('DAN'),('RON'),('JANE');
Query OK, 3 rows affected (0.06 sec)
Records: 3  Duplicates: 0  Warnings: 0

mysql> INSERT INTO table_b (ID,`TEXT`) VALUES
    -> (2,'APPLE'),(2,'BANANA'),(2,'COFFEE');
Query OK, 3 rows affected (0.05 sec)
Records: 3  Duplicates: 0  Warnings: 0

mysql> SELECT A.*,GROUP_CONCAT(B.`TEXT`) `TEXT`
    -> FROM table_a A INNER JOIN table_b B USING (ID) WHERE A.ID=2;
+----+------+---------------------+
| ID | NAME | TEXT                |
+----+------+---------------------+
|  2 | RON  | APPLE,BANANA,COFFEE |
+----+------+---------------------+
1 row in set (0.00 sec)

Give it a Try !!!

To get all values available in table_a and anything that can be grouped from table_b:

SELECT
    A.*,IFNULL(GROUP_CONCAT(B.`TEXT`),'') `TEXT`
FROM
    table_a A LEFT JOIN table_b B USING (ID)
GROUP BY A.ID

Here is that sample:

mysql> use test
Database changed
mysql> DROP TABLE IF EXISTS table_a;
Query OK, 0 rows affected (0.03 sec)

mysql> DROP TABLE IF EXISTS table_b;
Query OK, 0 rows affected (0.02 sec)

mysql> CREATE TABLE table_a (ID int not null auto_increment,NAME VARCHAR(20),primary key (ID));
Query OK, 0 rows affected (0.01 sec)

mysql> CREATE TABLE table_b (ID int not null,`TEXT` TEXT,key (ID));
Query OK, 0 rows affected (0.03 sec)

mysql> INSERT INTO table_a (NAME) VALUES ('DAN'),('RON'),('JANE');
Query OK, 3 rows affected (0.02 sec)
Records: 3  Duplicates: 0  Warnings: 0

mysql> INSERT INTO table_b (ID,`TEXT`) VALUES (2,'APPLE'),(2,'BANANA'),(2,'COFFEE');
Query OK, 3 rows affected (0.00 sec)
Records: 3  Duplicates: 0  Warnings: 0

mysql> SELECT A.*,IFNULL(GROUP_CONCAT(B.`TEXT`),'') `TEXT`
    -> FROM table_a A LEFT JOIN table_b B USING (ID) GROUP BY A.ID;
+----+------+---------------------+
| ID | NAME | TEXT                |
+----+------+---------------------+
|  1 | DAN  |                     |
|  2 | RON  | APPLE,BANANA,COFFEE |
|  3 | JANE |                     |
+----+------+---------------------+
3 rows in set (0.00 sec)

mysql>