c# - How to implement tag counting -

-

I have my tag like this in my database: 

  table: item column : Item IDID, Title, Content Table: Tag Col: Tag ID, Title Table: Item Tag Column: Item ID, Tag ID / Example - This is the right Sidebar of StackWorflow C ## 59279 Squared × 14885 ASPN-MVC × 9123 links × 4337 Tag × 33 9

If I want to know the count of each tag such as the Stackoverflow flow tag How do I do to it?

In the table tag, a type of query that I will display, I am open to both regular SQL and Linux Add more columns, which work as a counter when you add or remove a tag from an object, you update that counter (in other words, when on the item tag to increase the contact on the tagged item Line, then the counter decreases)

items Add tags:

Enter item tags (item, tag) value ('$ itemid', '$ tagid'); Upload tag SET counter = counter + 1 WHERE tagid = '$ tagid'; Remove

tag from item 

  item tag where item id = '$ itemid' and tagid = '$ tagid'; Upload tag SET counter = counter-1 WHERE tagid = '$ tagid';

Recover item tags with counter 

  select t.title, t.counter item tags as t.idtag = It.tagid at WHERE it.itemid = '$ itemid'

Comments

Post a Comment

Popular posts from this blog

oracle - The fastest way to check if some records in a database table? -

-
I have a big table to work with. I have to see that there are some records whose parent_id is equal to my passing value. Currently I do this by implementing "my_table using select count (*) where parent_id =: id"; If the result> 0, it means that they exist. Because this is a very large table, and I do not care what the actual number of records present, I just want to know if it exists, so I think count (*) Bit is disabled. How do I apply this requirement most quickly? I'm using Oracle 10. # Tips for Hibernation & amp; Tricks It suggests writing in such a way: Integer number = (integer) session .createQuery ("Select Count (*) to ...."). UniqueResult (); I do not know what is the magic of the unique rule? Why does it fast? To compare, select "1 from mytable where parent_id = passId and rowrum", which is more efficient? If you are not interested in the number of records, then there is an EXISTS query one: Select 'y'
Read more

php - multilevel menu with multilevel array -

-
Just ask someone to solve this problem? I want to create a multilevel menu I can not find the right solution generated with multilevel array, it always gets an array_push error My study came from the original idea But still my Can not match the need. This is my MySQL [code] ----- --------------------- --------------- | ID | PARENT_ID | Name | Link | Seq | 1 | 0 | Dashboad | Dashboard / | 1 | 2 | 0 | Menu 1 | Menu 1 / | 2 | 3 | 0 | Menu 2 | Menu 2 / | 3 | 4 | 0 | Menu 3 | Menu 3 / | 4 | 5 | 2 | Joint Add / | 1 | 6 | 3 | Joint Add / | 1 | 7 | 2 | Edit | Edit / | 2 | 8 | 4 | Joint Add / | 1 ------------------------------------------ [/ Code] I want to do something like this in my array array ('dashboard' = & gt; array ('id' = & gt; '' 'Dame' = & gt; 'Dashboard', 'Title' = & gt; 'Dashboard', 'MatchMin' = & gt; Base_URL (). 'Dashboard /', 'Active' => = & Gt; NULL), &
Read more

jQuery UI: Datepicker month format -

-
I am trying to change the format of the month that shows in the popup (not in the date that the picker actually I do not have any choice anywhere to do this, do I like to use a sub-string () or something else? What I normally display is Trying to change: Class = "ui-datepicker-title"> January & lt; / span & gt; ... & lt; / div & gt; Div>
Read more