StackOverflow2013

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plurals

PO
primarykey
Id
20670551
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
CommentCount
0
CommunityOwnedDate
CreationDate
2013-12-18T23:21:34.773
FavoriteCount
0
LastActivityDate
2013-12-18T23:29:41.237
LastEditDate
2013-12-18T23:29:41.237
LastEditorUserId
452388
OwnerUserId
452388
ParentId
20670078
PostTypeId
2
Score
1
ViewCount
0
LastEditorDisplayName
text
Body
20 seconds is very weird for such a little table. I have a very similar table with almost 4 million rows and your both SQL statements takes less than 0.002 sec. <pre><code>CREATE TABLE IF NOT EXISTS `tasks` ( `id` int(11) NOT NULL AUTO_INCREMENT, `status` varchar(10) COLLATE utf8_unicode_ci NOT NULL DEFAULT 'open', `method` varchar(10) COLLATE utf8_unicode_ci NOT NULL DEFAULT 'GET', `url` varchar(255) COLLATE utf8_unicode_ci NOT NULL, `params` text COLLATE utf8_unicode_ci, `response` text COLLATE utf8_unicode_ci, `executed_by` varchar(50) COLLATE utf8_unicode_ci DEFAULT '', `execute_at` datetime DEFAULT NULL, `created` datetime NOT NULL, `modified` datetime NOT NULL, PRIMARY KEY (`id`), KEY `status` (`status`), KEY `modified` (`modified`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci AUTO_INCREMENT=3839270 ; </code></pre> - <pre><code>SELECT COUNT(id) FROM tasks WHERE status='done'; ---> Query took 0.0008 sec </code></pre> - <pre><code>SELECT id, status, method, url FROM tasks WHERE status='done' ORDER BY id DESC LIMIT 200, 100; ---> Query took 0.0011 sec </code></pre> Observations: <ul> <li>You should use SELECT COUNT(New_Id)...</li> <li>New_id <> '' doesn't make sense. New_id can't be empty or NULL</li> <li>Set the length of New_Status to something that match the values you store there</li> <li>Try turning off logging: SET GLOBAL general_log = 'OFF';</li> <li>Update your server packages (specially MySQL)</li> <li>Is it a dedicated server only for the database?</li> <li>Is the server running other things? (run 'top' and 'uptime' to check it status)</li> </ul>
Tags
Title
singulars
PostAcceptedAnswerId
1. This table or related slice is empty.
PostParentId
1. POOptimize a count SQL query on a big table
 singulars
 PostTypePostTypeId
 PTQuestion
PostTypePostTypeId
1. PTAnswer
UserLastEditorUserId
1. USClaudio Bredfeldt
UserOwnerUserId
1. USClaudio Bredfeldt
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. VO
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 PO
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTUpMod
CommentsPostId
1. This table or related slice is empty.

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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.