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plurals

POMySQL get all rows in which one field belongs to array, and all members have a common value in the other field
primarykey
Id
14016097
data
AcceptedAnswerId
14016114
AnswerCount
2
ClosedDate
CommentCount
0
CommunityOwnedDate
CreationDate
2012-12-24T01:25:12.797
FavoriteCount
0
LastActivityDate
2012-12-24T01:36:41.073
LastEditDate
LastEditorUserId
0
OwnerUserId
1768401
ParentId
0
PostTypeId
1
Score
0
ViewCount
349
LastEditorDisplayName
text
Body
Let's say I have the following table of user properties: <pre><code>id, user_id properties 1, NULL, prop_ss1 2, NULL, prop_ss2 3, 2, prop_1 4, 2, prop_2 5, 3, prop_1 6, 3, prop_2 7, 3, prop_3 8, 4, prop_1 </code></pre> Given an array of user_ids, how could I get the list of all properties which either have the user_id NULL (call it a global property if you wish), or are shared among all user_ids in the given array? For instance, given an array (2,3), I would like to get: <pre><code>prop_ss1 prop_ss2 prop_1 prop_2 </code></pre> Or, given an array(2,3,4), I would like to get: <pre><code>prop_ss1 prop_ss2 prop_1 </code></pre>
Tags
<mysql><sql>
Title
MySQL get all rows in which one field belongs to array, and all members have a common value in the other field
singulars
PostAcceptedAnswerId
1. PO
 singulars
 PostTypePostTypeId
 PTAnswer
PostParentId
1. This table or related slice is empty.
PostTypePostTypeId
1. PTQuestion
UserLastEditorUserId
1. This table or related slice is empty.
UserOwnerUserId
1. USuser1768401
plurals
PostLinksPostIdRelatedPostId
1. This table or related slice is empty.
PostLinksRelatedPostIdPostId
1. This table or related slice is empty.
PostsAcceptedAnswerId
1. This table or related slice is empty.
PostsParentIdCreationDate
1. PO
 singulars
 PostTypePostTypeId
 PTAnswer
2. PO
 singulars
 PostTypePostTypeId
 PTAnswer
VotesPostIdCreationDate
1. This table or related slice is empty.
CommentsPostId
1. This table or related slice is empty.

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