Tukukkk

Have the following table which i am trying to concat two rows from the 'value' column into one

mysql> select * from table;

+-----+---------+----------+------------------------+

| id  | rsvp_id | field_id | value                  |

+-----+---------+----------+------------------------+

| 181 |      37 |        1 | First                  |

| 184 |      37 |        4 | Last                   |

| 187 |      37 |       10 |                        |

| 190 |      37 |       13 | spicegirls             |

| 193 |      37 |        7 | mark@test2.com         |

| 196 |      40 |        1 | Brian                  |

| 199 |      40 |        1 | Smith                  |

| 202 |      40 |        7 | Brian@test .com        |

| 205 |      40 |       10 | BBQ                    |

+-----+---------+----------+------------------------+

9 rows in set (0.00 sec)

Ideally i'd like to get the following result

rsvp_id  | value

========  ========

37         First Last

40         Brian Smith

The query only grabs the rows with field_id=1 then concats the value column and creates a new row with rsvp_id and the concat value.

Also, the field_id column right now and the 1 is an example, i'll have to figure out how to make it work so instead of 1 it takes the condition from a different table.

Basically the above are values for first name and last name. field_id is a foreign_key to a different table.

I've tried searching online and messing with it myself but i wasn't able to merge the two rows into one row.

Thank You.

You have to use grouping and then use GROUP_CONCAT.

Something like this (untested) might work:

   SELECT rsvp_id, GROUP_CONCAT(value SEPARATOR ' ')

     FROM t

    WHERE field_id = 1

 GROUP BY rsvp_id

See MySQL docs for details, also to learn about ordering of values etc:
https://dev.mysql.com/doc/refman/8.0/en/group-by-functions.html#function_group-concat