mysql - Updating with two selects - 


"id"    "type"  "parent"    "country"   "votes" "percent" "1"     "1"     "0"         "us"        "0"     "0" "2"     "2"     "1"         "us"        "0"     "0"//votes = 8 i.e total of id3 votes , id7votes. both have id=2 parent, , id=2 type 2 "3"     "3"     "2"         "us"        "4"     "0" "7"     "3"     "2"         "us"        "4"     "0" "19"    "3"     "1"         "us"        "4"     "0" "4183"  "10"    "3"         "us"        "2"     "0" "4184"  "10"    "3"         "us"        "2"     "0" "4185"  "10"    "7"         "us"        "2"     "0" "4186"  "10"    "7"         "us"        "2"     "0" "4187"  "10"    "19"        "us"        "2"     "0" "4188"  "10"    "19"        "us"        "2"     "0"

i'm trying update col type=2 sum of votes id parent. i've been trying below, seem going no since involves 3 statements , i'm backward joins , multiple selects.

update  likesd         inner join         (             select  parent, sum(votes) totalvotes                likesd               type = 3             group   parent         ) b on a.country = b.country set     a.votes = b.totalvotes   a.id = b.parent;

it's this:

select id likesd type = 2 select sum(votes) totalvotes parent = id update likesd set votes = totalvotes id = parent , country = country

any idea how can done. i'm ok 2 selects, third 1 has stuck.

edit: type = 2 repeats in table

update likesd a, (select parent, sum(votes) totalvotes                   likesd                   group parent) b set a.votes = b.totalvotes a.type = 2     , a.id = b.parent

reference: you can't specify target table update in clause


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