StackOverflow2013

Note that there are some explanatory texts on larger screens.

plurals

PO
primarykey
Id
9628057
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
CommentCount
1
CommunityOwnedDate
CreationDate
2012-03-09T02:16:11.493
FavoriteCount
0
LastActivityDate
2012-03-09T02:16:11.493
LastEditDate
LastEditorUserId
0
OwnerUserId
1250772
ParentId
9625694
PostTypeId
2
Score
0
ViewCount
0
LastEditorDisplayName
text
Body
Also, believe it or not, you could write a regex which matches all alphanumeric strings, except for "help". The regex <code>([a-zA-Z0-9]+)/?&~help</code> can be rewritten to a regex which does not use the <code>&</code> and <code>~</code> (and and not) operators (not widely available). The regex looks like dog's breakfast, and so you don't really want to do this. But here is how. Firstly, all shorter alphanumeric codes are matched. "hel" is acceptable problem and neither is any other three-letter/digit sequence: <pre><code>[a-zA-Z0-9]{1,3} </code></pre> We can also recognize sequences of five or more characters; they are not "help" either, by including this: <pre><code>[a-zA-Z0-9]{5,} </code></pre> Now comes the tricky part, matching four-letter sequences which are not help. This means any four char identifier that doesn't begin with an <code>h</code>, or any four char that does not have <code>e</code> as the second letter. Etc: <pre><code>[a-gi-zA-Z0-9][a-zA-Z0-9]{3} [a-zA-Z0-9][a-df-zA-Z0-9][a-zA-Z0-9]{2} [a-zA-Z0-9]{2}[a-km-zA-Z0-9][a-zA-Z0-9] [a-zA-Z0-9]{3}[a-oq-zA-Z0-9] </code></pre> The only four char pattern that does not match any one of these is the word "help". It doesn't match the first one because of the h, the second one because of the e, etc. So, combining them all together with | and anchoring. Take a deep breath: <pre><code>^([a-zA-Z0-9]{1,3}|[a-zA-Z0-9]{5,}|[a-gi-zA-Z0-9][a-zA-Z0-9]{3}|[a-zA-Z0-9][a-df-zA-Z0-9][a-zA-Z0-9]{2}|[a-zA-Z0-9]{2}[a-km-zA-Z0-9][a-zA-Z0-9]|[a-zA-Z0-9]{3}[a-oq-zA-Z0-9])$ </code></pre> This should be the new channel key for <code>#unix</code> on the EFNet IRC network. :) Am I gonna test this? What are you nuts ... Of course I did, but with sed. A little bit. Most of the meta chars have to be escaped, oops: <pre><code>$ sed -n -e '/^$[a-zA-Z0-9]\{1,3\}\|[a-zA-Z0-9]\{5,\}\|[a-gi-zA-Z0-9][a-zA-Z0-9]\{3\}\|[a-zA-Z0-9][a-df-zA-Z0-9][a-zA-Z0-9]\{2\}\|[a-zA-Z0-9]\{2\}[a-km-zA-Z0-9][a-zA-Z0-9]\|[a-zA-Z0-9]\{3\}[a-oq-zA-Z0-9]$$/p' a <- typed a aa <- typed aa aaa <- aaa aaaa <- aaaa aaaaa <- aaaaa help <- aha, no response from sed aelp <- aelp helper <- helper </code></pre>
Tags
Title
singulars
PostAcceptedAnswerId
1. This table or related slice is empty.
PostParentId
1. POMatch all letter/number combos but specific word?
 singulars
 PostTypePostTypeId
 PTQuestion
PostTypePostTypeId
1. PTAnswer
UserLastEditorUserId
1. This table or related slice is empty.
UserOwnerUserId
1. USKaz
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. This table or related slice is empty.
VotesPostIdCreationDate
1. This table or related slice is empty.
CommentsPostId
1. COP.S. I will have you know I wrote a regex implementation that supports ~, & and - (set difference) without backtracking. Not coming to Apache any time soon. :P
 singulars
 PostPostId
 PO
 UserUserId
 USKaz

Querying!

Guidance

A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.