Name
group_concat() — Concatenate row values
Common Usage
group_concat( element )
group_concat( element, separator )
Description
The group_contact() aggregate returns a text value
that is the concatenated text representations of each non-NULL
element
, separated by
separator
.
If
separator
is not provided, it is assumed to be the
single-character string “,”
(comma) without any
trailing space.