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plurals

POPlanning management slots/sessions
primarykey
Id
2548141
data
AcceptedAnswerId
2548203
AnswerCount
1
ClosedDate
CommentCount
1
CommunityOwnedDate
CreationDate
2010-03-30T19:41:43.913
FavoriteCount
0
LastActivityDate
2016-04-10T04:08:28.183
LastEditDate
2016-04-10T04:08:28.183
LastEditorUserId
2861681
OwnerUserId
305189
ParentId
0
PostTypeId
1
Score
0
ViewCount
70
LastEditorDisplayName
text
Body
I have a planning structure on two tables to store available slots by day, and sessions. A slot is defined by a range of time in the day. <pre><code>CREATE TABLE slot ( `id` int(11) NOT NULL AUTO_INCREMENT , `date` date , `start` time , `end` time ); </code></pre> Sessions can't overlap themselves and must be wrapped in a slot. <pre><code>CREATE TABLE session ( `id` int(11) NOT NULL AUTO_INCREMENT , `date` date , `start` time , `end` time ); </code></pre> I need to generate a list of available blocks of time of a certain duration, in order to create sessions. Example: <pre><code>INSERT INTO slot (date, start, end) VALUES ("2010-01-01", "10:00", "19:00") , ("2010-01-02", "10:00", "15:00") , ("2010-01-02", "16:00", "20:30") ; INSERT INTO slot (date, start, end) VALUES ("2010-01-01", "10:00", "19:00") , ("2010-01-02", "10:00", "15:00") , ("2010-01-02", "16:00", "20:30") ; </code></pre> 2010-01-01 <pre><code> <##><####> <- Sessions ------------------------------------ <- Slots 10 11 12 13 14 15 16 17 18 19 20 </code></pre> 2010-01-02 <pre><code> <##########> <########> <- Sessions -------------------- ------------------ <- Slots 10 11 12 13 14 15 16 17 18 19 20 </code></pre> I need to know which spaces of 1 hour I can use: <pre><code>+------------+-------+-------+ | date | start | end | +------------+-------+-------+ | 2010-01-01 | 13:00 | 14:00 | | 2010-01-01 | 14:00 | 15:00 | | 2010-01-01 | 15:00 | 16:00 | | 2010-01-01 | 16:00 | 17:00 | | 2010-01-01 | 17:00 | 18:00 | | 2010-01-01 | 18:00 | 19:00 | | 2010-01-02 | 10:00 | 11:00 | | 2010-01-02 | 11:00 | 12:00 | | 2010-01-02 | 16:00 | 17:00 | +------------+-------+-------+ </code></pre>
Tags
<mysql><calendar>
Title
Planning management slots/sessions
singulars
PostAcceptedAnswerId
1. PO
 singulars
 PostTypePostTypeId
 PTAnswer
PostParentId
1. This table or related slice is empty.
PostTypePostTypeId
1. PTQuestion
UserLastEditorUserId
1. USvmg
UserOwnerUserId
1. USPierre de LESPINAY
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
VotesPostIdCreationDate
1. This table or related slice is empty.
CommentsPostId
1. COAre you sure your example is stated correctly? You never populate `session`.
 singulars
 PostPostId
 POPlanning management slots/sessions
 UserUserId
 This table or related slice is empty.

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