Mysql group by query with where condition -


i have table folowing structure

create table `abc` (     `sno` int(11) not null,<br>     `id1` int(11) unsigned not null default '0',     `id2` int(11) unsigned not null default '0',     `type` char(1) not null default '',     `time` datetime not null default '0000-00-00 00:00:00',  primary key (`sno`),  unique key `ind1` (`id1`,`id2`),  key `receiver` (`id2`) )

i want id2's grouped id1's have type 'a' .if no id1 id2 combination have type 'a' other id1 id2 combinations. have used following query-:

select     id1,     group_concat( id2 ) ,     group_concat( type )  contacts   time >  '2017-08-11 00:00:00'   group id1

now gives me type group concatenated string have operate upon id1,id2 combinations type 'a'.

output-:

id1    |  group_concat(id2) | group_concat(type) | 144111 | 556,3577,254389    |  a,i,i             |

can there way done mysql without need of further group_concatenated string?

would using temporary tables better way?


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